NEC UPD16687W

DATA SHEET
MOS INTERGRATED CIRCUIT
µPD16686, 16687
1/128 DUTY LCD CONTROLLER/DRIVER WITH FOUR-LEVEL GRAY SCALE, ON-CHIP RAM
DESCRIPTION
The µPD16686 and 16687 are controller/drivers which include display RAM for full-dot LCDs that can provide a four-level
gray scale display. These ICs are able to drive full-dot LCDs that contain up to 128 x 128 dots.
FEATURES
• µPD16686: COM outputs configured on both sides of chip
• µPD16687: COM outputs configured on one side of chip
• LCD controller/driver with on-chip display RAM
• Can operate using single power supply (logic system) in range from +1.7 to +3.6 V.
• On-chip booster: Switchable from x2 to x9 modes
• Dot display RAM: 128 x 128 x 2 bits
• Selection of four levels of gray scales from among 33 possible levels (four-frame rate control + 8 pulse width
modulation)
• Full dot outputs: 128 segment outputs and 128 common outputs
• Static icon outputs: 20 segment outputs and 2 common outputs (same signal is output)
• Serial data input and 8-bit parallel data input (i80 series interface and M68 series interface)
• On-chip voltage divider resistor
• Selectable bias levels: 1/12 to 1/7 bias (normal display), 1/6 or 1/5 bias (partial display)
• Duty settings: 1/128 to 1/1 duty
• On-chip oscillator
ORDERING INFORMATION
Part Number
Package
µ PD16686P
Chip
µ PD16686W
Wafer
µ PD16687P
Chip
µ PD16687W
Wafer
Remark Purchasing the chip/wafer entails the exchange of documents such as a separate memorandum or product
quality, so please contact one of our sales representative.
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. S15548EJ1V0DS00 (1st Edition)
Date Published July 2001 NS CP(K)
The mark  shows major revised points.
1999, 2001
µPD16686, 16687

BLOCK DIAGRAM
SEG1
SEG128
COM1
Segment driver
Data
register
TM,S
SIGIN1
SIGIN2
TSTIFS
TSTRTST
TSTVIHL
C86
PSX
/CS1
CS2
/RD(E)
/WR(R,/W)
D7(SI)
D6(SCL)
D5 to D0
RS
/RES
TESTOUT
OSCIN1
OSCIN2
OSCOUT
TOSCSYNC
CLS
COM128
Common driver
PCOM1
Pictograph common driver
PSEG1
Segment
G/S and blink
control
Pictograph
segment
driver
PSEG20
Display data latch
Display data RAM
(128 x 128 x 2 bit)
Common
timing
generator
Icon data RAM
(20 x 2 bit)
TFR
TFRSYNC
TDOF
TSISYNC
Pictograph
common
timing
generator
I/O
buffer
Address decoder
Segment
G/S and blink
timer
Register
Command decoder
Timing generator
Oscillator
D/A converter
C1,+ C1 -
+
C9 , C9
DC/DC
converter
LCD voltage generator
Op amp
C1A
VOUT
VRS
IRS
VR
AMPOUTP AMPOUT
VLCD
VLC1
Remark /xxx indicates active low signals.
2
Data Sheet S15548JJ1V0DS
VLC2
VLC3
VLC4
VDD1 VDD2
VSS
µPD16686, 16687

PIN CONFIGURATION (PAD LAYOUT)
(1) µPD16686
Chip size:3.04 x 13.98 mm2
Chip thickness:485 µm (TYP.)
502
468
M1
1
467
Y
X
220
254
M2
221
253
Data Sheet S15548JJ1V0DS
3
µPD16686, 16687
▪ µPD16686 Pad Layout (1/3)
Pad
Type
X [µ m]
Y [µ m]
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
B
A
A
A
A
A
A
A
A
A
A
A
A
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
6575.000
6480.000
6420.000
6360.000
6300.000
6240.000
6180.000
6120.000
6060.000
6000.000
5940.000
5880.000
5820.000
71
72
73
74
75
76
77
78
79
80
81
82
83
14 DUMMY
15 PSEG1
A
A
-1385.000
-1385.000
16 PSEG1
17 PSEG2
A
A
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
Pad
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
4
Pin Name
PSEG2
PSEG3
PSEG3
PSEG4
PSEG4
PSEG5
PSEG5
PSEG6
PSEG6
PSEG7
PSEG7
PSEG8
PSEG8
PSEG9
PSEG9
PSEG10
PSEG10
VSS
VRS
VRS
DUMMY
AMPOUTP
AMPOUTP
AMPOUT
AMPOUT
VR
VR
VLC4
VLC4
VLC3
VLC3
VLC2
VLC2
VLC1
VLC1
VLCD
VLCD
VSS
VOUT
VOUT
VSS
DUMMY
DUMMY
DUMMY
C9C9C9+
C9+
C8C8C8+
C8+
C7-
Pad
Type
X [µ m]
Y [µ m]
Pad
No.
C7C7+
C7+
C6C6C6+
C6+
C5C5C5+
C5+
C4C4-
A
A
A
A
A
A
A
A
A
A
A
A
A
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
2340.000
2280.000
2220.000
2160.000
2100.000
2040.000
1980.000
1920.000
1860.000
1800.000
1740.000
1680.000
1620.000
141
142
143
144
145
146
147
148
149
150
151
152
153
5760.000
5700.000
84 C4+
85 C4+
A
A
-1385.000
-1385.000
1560.000
1500.000
-1385.000
-1385.000
5640.000
5580.000
86 C387 C3-
A
A
-1385.000
-1385.000
1440.000
1380.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
5520.000
5460.000
5400.000
5340.000
5280.000
5220.000
5160.000
5100.000
5040.000
4980.000
4920.000
4860.000
4800.000
4740.000
4680.000
4620.000
4560.000
4500.000
4440.000
4380.000
4320.000
4260.000
4200.000
4140.000
4080.000
4020.000
3960.000
3900.000
3840.000
3780.000
3720.000
3660.000
3600.000
3540.000
3480.000
3420.000
3360.000
3300.000
3240.000
3180.000
3120.000
3060.000
3000.000
2940.000
2880.000
2820.000
2760.000
2700.000
2640.000
2580.000
2520.000
2460.000
2400.000
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
1320.000
1260.000
1200.000
1140.000
1080.000
1020.000
960.000
900.000
840.000
780.000
720.000
660.000
600.000
540.000
480.000
420.000
360.000
300.000
240.000
180.000
120.000
60.000
0.000
-60.000
-120.000
-180.000
-240.000
-300.000
-360.000
-420.000
-480.000
-540.000
-600.000
-660.000
-720.000
-780.000
-840.000
-900.000
-960.000
-1020.000
-1080.000
-1140.000
-1200.000
-1260.000
-1320.000
-1380.000
-1440.000
-1500.000
-1560.000
-1620.000
-1680.000
-1740.000
-1800.000
Pad
No.
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
Pin Name
C3+
C3+
C2C2C2+
C2+
C1C1C1+
C1+
C1A
C1A
VDD2
VDD2
VDD2
VDD1
VDD1
VDD1
VSS
VSS
VSS
CLS
CLS
VDD1
TM,S
TM,S
VSS
C86
C86
PSX
PSX
VDD1
IRS
IRS
VSS
/CS1
/CS1
CS2
CS2
VDD1
/RES
/RES
RS
RS
VSS
/WR (R,/W)
/WR (R,/W)
/RD (E)
/RD (E)
VDD1
D7 (SI)
D7 (SI)
D6 (SCL)
Data Sheet S15548JJ1V0DS
Pad
Type
X [ µ m]
Y [µ m]
A
A
A
A
A
A
A
A
A
A
A
A
A
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1860.000
-1920.000
-1980.000
-2040.000
-2100.000
-2160.000
-2220.000
-2280.000
-2340.000
-2400.000
-2460.000
-2520.000
-2580.000
154 TFRSYNC
155 TFRSYNC
A
A
-1385.000
-1385.000
-2640.000
-2700.000
156 TFR
157 TFR
A
A
-1385.000
-1385.000
-2760.000
-2820.000
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-2880.000
-2940.000
-3000.000
-3060.000
-3120.000
-3180.000
-3240.000
-3300.000
-3360.000
-3420.000
-3480.000
-3540.000
-3600.000
-3660.000
-3720.000
-3780.000
-3840.000
-3900.000
-3960.000
-4020.000
-4080.000
-4140.000
-4200.000
-4260.000
-4320.000
-4380.000
-4440.000
-4500.000
-4560.000
-4620.000
-4680.000
-4740.000
-4800.000
-4860.000
-4920.000
-4980.000
-5040.000
-5100.000
-5160.000
-5220.000
-5280.000
-5340.000
-5400.000
-5460.000
-5520.000
-5580.000
-5640.000
-5700.000
-5760.000
-5820.000
-5880.000
-5940.000
-6000.000
Pin Name
D6 (SCL)
D5
D5
D4
D4
D3
D3
D2
D2
D1
D1
D0
D0
TDOF
TDOF
OSCIN1
OSCIN1
OSCIN2
OSCIN2
OSCOUT
OSCOUT
TOSCSYNC
TOSCSYNC
TSISYNC
TSISYNC
VSS
SIGIN1
SIGIN1
VDD1
SIGIN2
SIGIN2
VSS
TESTOUT
TESTOUT
TSTIFS
TSTIFS
TSTRTST
TSTRTST
TSTVIHL
TSTVIHL
VSS
PSEG11
PSEG11
PSEG12
PSEG12
PSEG13
PSEG13
PSEG14
PSEG14
PSEG15
PSEG15
PSEG16
PSEG16
PSEG17
PSEG17
PSEG18
PSEG18
PSEG19
PSEG19
PSEG20
PSEG20
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
µPD16686, 16687
▪ µPD16686 Pad Layout (2/3)
Pad
Type
X [ µ m]
Y [ µ m]
Pad
No.
Pin Name
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
PCOM1
A
A
A
A
A
A
A
A
A
B
B
A
A
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1185.000
-1090.000
-1030.000
-6060.000
-6120.000
-6180.000
-6240.000
-6300.000
-6360.000
-6420.000
-6480.000
-6540.000
-6635.000
-6766.600
-6766.600
-6766.600
281
282
283
284
285
286
287
288
289
290
291
292
293
224 PCOM1
225 COM41
A
A
-970.000
-910.000
226 COM42
227 COM43
A
A
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
B
B
B
B
B
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
Pad
No.
211
212
213
214
215
216
217
218
219
220
221
222
223
Pin Name
COM44
COM45
COM46
COM47
COM48
COM49
COM50
COM51
COM52
COM53
COM54
COM55
COM56
COM57
COM58
COM59
COM60
COM61
COM62
COM63
COM64
COM65
COM66
COM67
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
COM68
COM69
COM70
COM71
COM72
COM73
COM74
COM75
COM76
COM77
COM78
COM79
COM80
COM82
COM84
COM86
COM88
COM90
COM92
COM94
COM96
COM98
COM100
Pad
Type
X [µ m]
Y [ µ m]
Pad
No.
Pin Name
COM102
COM104
COM106
COM108
COM110
COM112
COM114
COM116
COM118
COM120
COM122
COM124
COM126
A
A
A
A
A
A
A
A
A
A
A
A
A
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
-4830.000
-4770.000
-4710.000
-4650.000
-4590.000
-4530.000
-4470.000
-4410.000
-4350.000
-4290.000
-4230.000
-4170.000
-4110.000
351
352
353
354
355
356
357
358
359
360
361
362
363
-6766.600
-6766.600
294 COM128
295 DUMMY
A
A
1296.600
1296.600
-850.000
-790.000
-6766.600
-6766.600
296 DUMMY
297 DUMMY
A
A
-730.000
-670.000
-610.000
-550.000
-490.000
-430.000
-370.000
-310.000
-250.000
-190.000
-130.000
-70.000
-10.000
50.000
110.000
170.000
230.000
290.000
350.000
410.000
470.000
530.000
590.000
650.000
745.000
875.000
1005.000
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6495.000
-6365.000
-6270.000
-6210.000
-6150.000
-6090.000
-6030.000
-5970.000
-5910.000
-5850.000
-5790.000
-5730.000
-5670.000
-5610.000
-5550.000
-5490.000
-5430.000
-5370.000
-5310.000
-5250.000
-5190.000
-5130.000
-5070.000
-5010.000
-4950.000
-4890.000
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
SEG128
SEG127
SEG126
SEG125
SEG124
SEG123
SEG122
SEG121
SEG120
SEG119
SEG118
SEG117
SEG116
SEG115
SEG114
SEG113
SEG112
SEG111
SEG110
SEG109
SEG108
SEG107
SEG106
SEG105
SEG104
SEG103
SEG102
SEG101
SEG100
SEG99
SEG98
SEG97
SEG96
SEG95
SEG94
SEG93
SEG92
SEG91
SEG90
SEG89
SEG88
SEG87
SEG86
SEG85
SEG84
SEG83
SEG82
SEG81
SEG80
SEG79
SEG78
SEG77
SEG76
Pad
Type
X [µ m]
Y [ µ m]
SEG75
SEG74
SEG73
SEG72
SEG71
SEG70
SEG69
SEG68
SEG67
SEG66
SEG65
SEG64
SEG63
A
A
A
A
A
A
A
A
A
A
A
A
A
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
-630.000
-570.000
-510.000
-450.000
-390.000
-330.000
-270.000
-210.000
-150.000
-90.000
-30.000
30.000
90.000
-4050.000
-3990.000
364 SEG62
365 SEG61
A
A
1296.600
1296.600
150.000
210.000
1296.600
1296.600
-3930.000
-3870.000
366 SEG60
367 SEG59
A
A
1296.600
1296.600
270.000
330.000
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
-3810.000
-3750.000
-3690.000
-3630.000
-3570.000
-3510.000
-3450.000
-3390.000
-3330.000
-3270.000
-3210.000
-3150.000
-3090.000
-3030.000
-2970.000
-2910.000
-2850.000
-2790.000
-2730.000
-2670.000
-2610.000
-2550.000
-2490.000
-2430.000
-2370.000
-2310.000
-2250.000
-2190.000
-2130.000
-2070.000
-2010.000
-1950.000
-1890.000
-1830.000
-1770.000
-1710.000
-1650.000
-1590.000
-1530.000
-1470.000
-1410.000
-1350.000
-1290.000
-1230.000
-1170.000
-1110.000
-1050.000
-990.000
-930.000
-870.000
-810.000
-750.000
-690.000
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
390.000
450.000
510.000
570.000
630.000
690.000
750.000
810.000
870.000
930.000
990.000
1050.000
1110.000
1170.000
1230.000
1290.000
1350.000
1410.000
1470.000
1530.000
1590.000
1650.000
1710.000
1770.000
1830.000
1890.000
1950.000
2010.000
2070.000
2130.000
2190.000
2250.000
2310.000
2370.000
2430.000
2490.000
2550.000
2610.000
2670.000
2730.000
2790.000
2850.000
2910.000
2970.000
3030.000
3090.000
3150.000
3210.000
3270.000
3330.000
3390.000
3450.000
3510.000
Data Sheet S15548JJ1V0DS
SEG58
SEG57
SEG56
SEG55
SEG54
SEG53
SEG52
SEG51
SEG50
SEG49
SEG48
SEG47
SEG46
SEG45
SEG44
SEG43
SEG42
SEG41
SEG40
SEG39
SEG38
SEG37
SEG36
SEG35
SEG34
SEG33
SEG32
SEG31
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
5
µPD16686, 16687
▪ µPD16686 Pad Layout (3/3)
Pad
Type
X [µ m]
Y [µ m]
Pad
No.
Pin Name
SEG5
SEG4
SEG3
SEG2
SEG1
DUMMY
DUMMY
DUMMY
COM127
COM125
COM123
COM121
COM119
A
A
A
A
A
A
A
A
A
A
A
A
A
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
3570.000
3630.000
3690.000
3750.000
3810.000
3870.000
3930.000
3990.000
4050.000
4110.000
4170.000
4230.000
4290.000
491
492
493
494
495
496
497
498
499
500
501
502
COM8
COM7
COM6
COM5
COM4
OCM3
COM2
COM1
PCOM1
PCOM1
DUMMY
DUMMY
434 COM117
435 COM115
A
A
1296.600
1296.600
4350.000
4410.000
436 COM113
437 COM111
A
A
1296.600
1296.600
4470.000
4530.000
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
B
B
B
B
B
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1030.000
900.000
770.000
675.000
615.000
555.000
495.000
435.000
375.000
315.000
255.000
195.000
135.000
75.000
15.000
-45.000
-105.000
-165.000
-225.000
-285.000
-345.000
-405.000
4590.000
4650.000
4710.000
4770.000
4830.000
4890.000
4950.000
5010.000
5070.000
5130.000
5190.000
5250.000
5310.000
5370.000
5430.000
5490.000
5550.000
5610.000
5670.000
5730.000
5790.000
5850.000
5910.000
5970.000
6030.000
6090.000
6150.000
6210.000
6270.000
6365.000
6495.000
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
Pad
No.
Pin Name
421
422
423
424
425
426
427
428
429
430
431
432
433
6
COM109
COM107
COM105
COM103
COM101
COM99
COM97
COM95
COM93
COM91
COM89
COM87
COM85
COM83
COM81
COM40
COM39
COM38
COM37
COM36
COM35
COM34
COM33
COM32
COM31
COM30
COM29
COM28
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
COM27
COM26
COM25
COM24
COM23
COM22
COM21
COM20
COM19
COM18
COM17
COM16
COM15
COM14
COM13
COM12
COM11
COM10
COM9
Pad
Type
X [µ m]
Y [µ m]
A
A
A
A
A
A
A
A
A
A
A
B
-465.000
-525.000
-585.000
-645.000
-705.000
-765.000
-825.000
-885.000
-945.000
-1005.000
-1065.000
-1160.000
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
Pad type A:
Pad size(Al) : 48 x 106 µ m2 TYP.
Pad size(Through hall) :10 x 60.48 µ m2 TYP.
Bump size : 35 x 92.5 µ m2 TYP.
Bump height : 17 µ m TYP.
Pad type B:
Pad size(Al) : 108 x 106 µ m2 TYP.
Pad size(Through hall) :78 x 60.48 µ m2 TYP.
Bump size : 110 x 92.5 µ m2 TYP.
Bump height : 17 µ m TYP.
Alingment mark
Alingment mark coordinate
X [µ m]
Y [µ m]
M1
M2
-1382.00
1220.00
6830.00
-6760.00
Alingment mark form (µ m)
124
M1
56
168
Mark point
56
M2
56
Mark point
112
56
168
Data Sheet S15548JJ1V0DS
µPD16686, 16687
(2) µPD16687
Chip size:3.04 x 13.98 mm2
Chip thickness:485 µm (TYP.)
502
468
M1
1
467
Y
X
220
254
M2
221
253
Data Sheet S15548JJ1V0DS
7
µPD16686, 16687
▪ µPD16687 Pad Layout (1/3)
Pad
No.
Pad
Type
X [µ m]
Y [µ m]
Pad
No.
C7C7+
C7+
C6C6C6+
C6+
C5C5C5+
A
A
A
A
A
A
A
A
A
A
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
2340.000
2280.000
2220.000
2160.000
2100.000
2040.000
1980.000
1920.000
1860.000
1800.000
141
142
143
144
145
146
147
148
149
150
5940.000
5880.000
5820.000
81 C5+
82 C483 C4-
A
A
A
-1385.000
-1385.000
-1385.000
1740.000
1680.000
1620.000
-1385.000
-1385.000
5760.000
5700.000
84 C4+
85 C4+
A
A
-1385.000
-1385.000
A
A
-1385.000
-1385.000
5640.000
5580.000
86 C387 C3-
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
5520.000
5460.000
5400.000
5340.000
5280.000
5220.000
5160.000
5100.000
5040.000
4980.000
4920.000
4860.000
4800.000
4740.000
4680.000
4620.000
4560.000
4500.000
4440.000
4380.000
4320.000
4260.000
4200.000
4140.000
4080.000
4020.000
3960.000
3900.000
3840.000
3780.000
3720.000
3660.000
3600.000
3540.000
3480.000
3420.000
3360.000
3300.000
3240.000
3180.000
3120.000
3060.000
3000.000
2940.000
2880.000
2820.000
2760.000
2700.000
2640.000
2580.000
2520.000
2460.000
2400.000
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
Pad
Type
X [mm]
Y [mm]
Pad
No.
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
B
A
A
A
A
A
A
A
A
A
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
6575.000
6480.000
6420.000
6360.000
6300.000
6240.000
6180.000
6120.000
6060.000
6000.000
71
72
73
74
75
76
77
78
79
80
11 DUMMY
12 DUMMY
13 DUMMY
A
A
A
-1385.000
-1385.000
-1385.000
14 DUMMY
15 PSEG1
A
A
16 PSEG1
17 PSEG2
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
1
2
3
4
5
6
7
8
9
10
8
Pin Name
PSEG2
PSEG3
PSEG3
PSEG4
PSEG4
PSEG5
PSEG5
PSEG6
PSEG6
PSEG7
PSEG7
PSEG8
PSEG8
PSEG9
PSEG9
PSEG10
PSEG10
VSS
VRS
VRS
DUMMY
AMPOUTP
AMPOUTP
AMPOUT
AMPOUT
VR
VR
VLC4
VLC4
VLC3
VLC3
VLC2
VLC2
VLC1
VLC1
VLCD
VLCD
VSS
VOUT
VOUT
VSS
DUMMY
DUMMY
DUMMY
C9C9C9+
C9+
C8C8C8+
C8+
C7-
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
Pin Name
C3+
C3+
C2C2C2+
C2+
C1C1C1+
C1+
C1A
C1A
VDD2
VDD2
VDD2
VDD1
VDD1
VDD1
VSS
VSS
VSS
CLS
CLS
VDD1
TM,S
TM,S
VSS
C86
C86
PSX
PSX
VDD1
IRS
IRS
VSS
/CS1
/CS1
CS2
CS2
VDD1
/RES
/RES
RS
RS
VSS
/WR (R,/W)
/WR (R,/W)
/RD (E)
/RD (E)
VDD1
D7 (SI)
D7 (SI)
D6 (SCL)
Pad
Type
X [µ m]
Y [µ m]
A
A
A
A
A
A
A
A
A
A
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1860.000
-1920.000
-1980.000
-2040.000
-2100.000
-2160.000
-2220.000
-2280.000
-2340.000
-2400.000
151 D1
152 D0
153 D0
A
A
A
-1385.000
-1385.000
-1385.000
-2460.000
-2520.000
-2580.000
1560.000
1500.000
154 TFRSYNC
155 TFRSYNC
A
A
-1385.000
-1385.000
-2640.000
-2700.000
-1385.000
-1385.000
1440.000
1380.000
156 TFR
157 TFR
A
A
-1385.000
-1385.000
-2760.000
-2820.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
1320.000
1260.000
1200.000
1140.000
1080.000
1020.000
960.000
900.000
840.000
780.000
720.000
660.000
600.000
540.000
480.000
420.000
360.000
300.000
240.000
180.000
120.000
60.000
0.000
-60.000
-120.000
-180.000
-240.000
-300.000
-360.000
-420.000
-480.000
-540.000
-600.000
-660.000
-720.000
-780.000
-840.000
-900.000
-960.000
-1020.000
-1080.000
-1140.000
-1200.000
-1260.000
-1320.000
-1380.000
-1440.000
-1500.000
-1560.000
-1620.000
-1680.000
-1740.000
-1800.000
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-2880.000
-2940.000
-3000.000
-3060.000
-3120.000
-3180.000
-3240.000
-3300.000
-3360.000
-3420.000
-3480.000
-3540.000
-3600.000
-3660.000
-3720.000
-3780.000
-3840.000
-3900.000
-3960.000
-4020.000
-4080.000
-4140.000
-4200.000
-4260.000
-4320.000
-4380.000
-4440.000
-4500.000
-4560.000
-4620.000
-4680.000
-4740.000
-4800.000
-4860.000
-4920.000
-4980.000
-5040.000
-5100.000
-5160.000
-5220.000
-5280.000
-5340.000
-5400.000
-5460.000
-5520.000
-5580.000
-5640.000
-5700.000
-5760.000
-5820.000
-5880.000
-5940.000
-6000.000
Data Sheet S15548JJ1V0DS
Pin Name
D6 (SCL)
D5
D5
D4
D4
D3
D3
D2
D2
D1
TDOF
TDOF
OSCIN1
OSCIN1
OSCIN2
OSCIN2
OSCOUT
OSCOUT
TOSCSYNC
TOSCSYNC
TSISYNC
TSISYNC
VSS
SIGIN1
SIGIN1
VDD1
SIGIN2
SIGIN2
VSS
TESTOUT
TESTOUT
TSTIFS
TSTIFS
TSTRTST
TSTRTST
TSTVIHL
TSTVIHL
VSS
PSEG11
PSEG11
PSEG12
PSEG12
PSEG13
PSEG13
PSEG14
PSEG14
PSEG15
PSEG15
PSEG16
PSEG16
PSEG17
PSEG17
PSEG18
PSEG18
PSEG19
PSEG19
PSEG20
PSEG20
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
µPD16686, 16687
▪ µPD16687 Pad Layout (2/3)
Pad
Type
X [µ m]
Y [µ m]
Pad
No.
Pin Name
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
A
A
A
A
A
A
A
A
A
B
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-1385.000
-6060.000
-6120.000
-6180.000
-6240.000
-6300.000
-6360.000
-6420.000
-6480.000
-6540.000
-6635.000
281
282
283
284
285
286
287
288
289
290
221 DUMMY
222 DUMMY
223 PCOM1
B
A
A
-1185.000
-1090.000
-1030.000
224 PCOM1
225 SEG128
A
A
226 SEG127
227 SEG126
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
Pad Pin Name
No.
211
212
213
214
215
216
217
218
219
220
SEG125
SEG124
SEG123
SEG122
SEG121
SEG120
SEG119
SEG118
SEG117
SEG116
SEG115
SEG114
SEG113
SEG112
SEG111
SEG110
SEG109
SEG108
SEG107
SEG106
SEG105
SEG104
SEG103
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
SEG102
SEG101
SEG100
SEG99
SEG98
SEG97
SEG96
SEG95
SEG94
SEG93
SEG92
SEG91
SEG90
SEG89
SEG88
SEG87
SEG86
SEG85
SEG84
SEG83
SEG82
SEG81
SEG80
Pad
Type
X [µ m]
Y [µ m]
SEG79
SEG78
SEG77
SEG76
SEG75
SEG74
SEG73
SEG72
SEG71
SEG70
A
A
A
A
A
A
A
A
A
A
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
-4770.000
-4710.000
-4650.000
-4590.000
-4530.000
-4470.000
-4410.000
-4350.000
-4290.000
-4230.000
351
352
353
354
355
356
357
358
359
360
-6766.600
-6766.600
-6766.600
291 SEG69
292 SEG68
293 SEG67
A
A
A
1296.600
1296.600
1296.600
-970.000
-910.000
-6766.600
-6766.600
294 SEG66
295 SEG65
A
A
A
A
-850.000
-790.000
-6766.600
-6766.600
296 SEG64
297 SEG63
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
B
B
B
B
B
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
-730.000
-670.000
-610.000
-550.000
-490.000
-430.000
-370.000
-310.000
-250.000
-190.000
-130.000
-70.000
-10.000
50.000
110.000
170.000
230.000
290.000
350.000
410.000
470.000
530.000
590.000
685.000
815.000
945.000
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6766.600
-6495.000
-6365.000
-6270.000
-6210.000
-6150.000
-6090.000
-6030.000
-5970.000
-5910.000
-5850.000
-5790.000
-5730.000
-5670.000
-5670.000
-5550.000
-5490.000
-5430.000
-5370.000
-5310.000
-5250.000
-5190.000
-5130.000
-5070.000
-5010.000
-4950.000
-4890.000
-4830.000
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
SEG62
SEG61
SEG60
SEG59
SEG58
SEG57
SEG56
SEG55
SEG54
SEG53
SEG52
SEG51
SEG50
SEG49
SEG48
SEG47
SEG46
SEG45
SEG44
SEG43
SEG42
SEG41
SEG40
SEG39
SEG38
SEG37
SEG36
SEG35
SEG34
SEG33
SEG32
SEG31
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
Pad
Type
X [ µ m]
Y [µ m]
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
DUMMY
A
A
A
A
A
A
A
A
A
A
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
-570.000
-510.000
-450.000
-390.000
-330.000
-270.000
-210.000
-150.000
-90.000
-30.000
-4170.000
-4110.000
-4050.000
361 DUMMY
362 DUMMY
363 COM128
A
A
A
1296.600
1296.600
1296.600
30.000
90.000
150.000
1296.600
1296.600
-3990.000
-3930.000
364 COM127
365 COM126
A
A
1296.600
1296.600
210.000
270.000
A
A
1296.600
1296.600
-3870.000
-3810.000
366 COM125
367 COM124
A
A
1296.600
1296.600
330.000
390.000
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
-3750.000
-3690.000
-3630.000
-3570.000
-3510.000
-3450.000
-3390.000
-3330.000
-3270.000
-3210.000
-3150.000
-3090.000
-3030.000
-2970.000
-2910.000
-2850.000
-2790.000
-2730.000
-2670.000
-2610.000
-2550.000
-2490.000
-2430.000
-2370.000
-2310.000
-2250.000
-2190.000
-2130.000
-2070.000
-2010.000
-1950.000
-1890.000
-1830.000
-1770.000
-1710.000
-1650.000
-1590.000
-1530.000
-1470.000
-1410.000
-1350.000
-1290.000
-1230.000
-1170.000
-1110.000
-1050.000
-990.000
-930.000
-870.000
-810.000
-750.000
-690.000
-630.000
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
450.000
510.000
570.000
630.000
690.000
750.000
810.000
870.000
930.000
990.000
1050.000
1110.000
1170.000
1230.000
1290.000
1350.000
1410.000
1470.000
1530.000
1590.000
1650.000
1710.000
1770.000
1830.000
1890.000
1950.000
2010.000
2070.000
2130.000
2190.000
2250.000
2310.000
2370.000
2430.000
2490.000
2550.000
2610.000
2670.000
2730.000
2790.000
2850.000
2910.000
2970.000
3030.000
3090.000
3150.000
3210.000
3270.000
3330.000
3390.000
3450.000
3510.000
3570.000
Data Sheet S15548JJ1V0DS
Pad Pin Name
No.
COM123
COM122
COM121
COM120
COM119
COM118
COM117
COM116
COM115
COM114
COM113
COM112
COM111
COM110
COM109
COM108
COM107
COM106
COM105
COM104
COM103
COM102
COM101
COM100
COM99
COM98
COM97
COM96
COM95
COM94
COM93
COM92
COM91
COM90
COM89
COM88
COM87
COM86
COM85
COM84
COM83
COM82
COM81
COM80
COM79
COM78
COM77
COM76
COM75
COM74
COM73
COM72
COM71
9
µPD16686, 16687
▪ µPD16687 Pad Layout (3/3)
Pad
Type
X [ µ m]
Y [µ m]
Pad
No.
COM70
COM69
COM68
COM67
COM66
COM65
COM64
COM63
COM62
COM61
A
A
A
A
A
A
A
A
A
A
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
3630.000
3690.000
3750.000
3810.000
3870.000
3930.000
3990.000
4050.000
4110.000
4170.000
491
492
493
494
495
496
497
498
499
500
431 COM60
432 COM59
433 COM58
A
A
A
1296.600
1296.600
1296.600
4230.000
4290.000
4350.000
434 COM57
435 COM56
A
A
1296.600
1296.600
4410.000
4470.000
436 COM55
437 COM54
A
A
1296.600
1296.600
4530.000
4590.000
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
B
B
B
B
B
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
1296.600
970.000
840.000
710.000
615.000
555.000
495.000
435.000
375.000
315.000
255.000
195.000
135.000
75.000
15.000
-45.000
-105.000
-165.000
-225.000
-285.000
-345.000
-405.000
-465.000
-525.000
4650.000
4710.000
4770.000
4830.000
4890.000
4950.000
5010.000
5070.000
5130.000
5190.000
5250.000
5310.000
5370.000
5430.000
5490.000
5550.000
5610.000
5670.000
5730.000
5790.000
5850.000
5910.000
5970.000
6030.000
6090.000
6150.000
6210.000
6270.000
6365.000
6495.000
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
Pad Pin Name
No.
421
422
423
424
425
426
427
428
429
430
10
COM53
COM52
COM51
COM50
COM49
COM48
COM47
COM46
COM45
COM44
COM43
COM42
COM41
COM40
COM39
COM38
COM37
COM36
COM35
COM34
COM33
COM32
COM31
COM30
COM29
COM28
COM27
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
COM26
COM25
COM24
COM23
COM22
COM21
COM20
COM19
COM18
COM17
COM16
COM15
COM14
COM13
COM12
COM11
COM10
COM9
COM8
COM7
Pin Name
COM6
COM5
COM4
OCM3
COM2
COM1
PCOM1
PCOM1
DUMMY
DUMMY
Pad
Type
X [µ m]
Y [µ m]
A
A
A
A
A
A
A
A
A
B
-585.000
-645.000
-705.000
-765.000
-825.000
-885.000
-945.000
-1005.000
-1065.000
-1160.000
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
6766.600
Pad type A:
Pad size(Al) : 48 x 106 µ m2 TYP.
Pad size(Through hall) :10 x 60.48 µ m2 TYP.
Bump size : 35 x 92.5 µ m2 TYP.
Bump height : 17 µ m TYP.
Pad type B:
Pad size(Al) : 108 x 106 µ m2 TYP.
Pad size(Through hall) :78 x 60.48 µ m2 TYP.
Bump size : 110 x 92.5 µ m2 TYP.
Bump height : 17 µ m TYP.
Alingment mark
Alingment mark coordinate
X [µ m]
Y [µ m]
M1
M2
-1382.00
1220.00
Alingment mark form (µ m)
124
M1
56
168
Mark point
56
M2
56
Mark point
112
56
168
Data Sheet S15548JJ1V0DS
6830.00
-6760.00
µPD16686, 16687
TABLE OF CONTENTS
1. PIN FUNCTIONS.................................................................................................................................... 14
1.1 Power Supply System Pins ............................................................................................................................14
1.2 Logic System Pins ..........................................................................................................................................15
1.3 Driver-Related Pins .........................................................................................................................................17
1.4 Test Pins ..........................................................................................................................................................18
2. PIN I/O CIRCUITS AND RECOMMENDED CONNECTION OF UNUSED PINS.................................. 19
3. DESCRIPTION OF FUNCTIONS ........................................................................................................... 20
3.1 CPU Interface...................................................................................................................................................20
3.1.1 Selection of interface type ...........................................................................................................................20
3.1.2 Parallel interface ..........................................................................................................................................20
3.1.3 Serial interface.............................................................................................................................................22
3.1.4 Chip select ...................................................................................................................................................22
3.1.5 Display data RAM and on-chip register access ...........................................................................................22
3.2 Display Data RAM............................................................................................................................................25
3.2.1 Display data RAM ........................................................................................................................................25
3.2.2 X address circuit ..........................................................................................................................................26
3.2.3 Column address circuit ................................................................................................................................26
3.2.4 Y address circuit ..........................................................................................................................................26
3.2.5 Common scan circuit ...................................................................................................................................26
3.2.6 Display start line set.....................................................................................................................................28
3.2.7 Display data latch circuit ..............................................................................................................................28
3.3 Blink/Reverse Display Circuit.........................................................................................................................29
3.4 Oscillator..........................................................................................................................................................31
3.5 Display Timing Generator...............................................................................................................................35
3.6 Power Supply Circuit ......................................................................................................................................37
3.6.1 Power supply circuit.....................................................................................................................................37
3.6.2 Booster ........................................................................................................................................................37
3.6.3 Voltage regulator .........................................................................................................................................39
3.6.4 Use of op amp for level power supply control ..............................................................................................42
3.6.5 Application examples of power supply circuits.............................................................................................43
3.7 LCD Display Drivers........................................................................................................................................46
3.7.1 Full-dot pulse width modulation ...................................................................................................................46
3.7.2 Full-dot frame rate control............................................................................................................................51
3.7.3 Line shift driver ............................................................................................................................................52
3.7.4 Display size settings ....................................................................................................................................54
3.7.5 Setting of LCD AC driver's inversion cycle and AC driver's inversion position.............................................54
Data Sheet S15548JJ1V0DS
11
µPD16686, 16687
3.8 Display Modes .................................................................................................................................................56
3.8.1 Partial display mode ....................................................................................................................................56
3.8.2 Monochrome (black/white) display...............................................................................................................58
3.8.3 Icon display..................................................................................................................................................60
3.9 Reset ................................................................................................................................................................62
4. COMMANDS .......................................................................................................................................... 63
4.1 Control Register 1 (R0) ...................................................................................................................................64
4.2 Control Register 2 (R1) ...................................................................................................................................65
4.3 Reset Command (R2) ......................................................................................................................................66
4.4 X Address Register (R3) .................................................................................................................................66
4.5 Y Address Register (R4) .................................................................................................................................66
4.6 Duty Setting Register (R5)..............................................................................................................................67
4.7 AC Driver Inversion Cycle Register (R6) .......................................................................................................67
4.8 AC Driver Inversion Position Shift Register (R7)..........................................................................................68
4.9 Partial AC Driver Inversion Cycle Register (R8) ...........................................................................................68
4.10 Partial AC Driver Inversion Position Shift Register (R9)............................................................................69
4.11 Partial Display Mode Setting (R10) ..............................................................................................................69
4.12 Display Memory Access Register (R11) ......................................................................................................70
4.13 Display Start Line Set (R12) .........................................................................................................................70
4.14 Blink X Address Register (R13)....................................................................................................................70
4.15 Blink Start Line Address Register (R14) .....................................................................................................71
4.16 Blink End Line Address Register (R15).......................................................................................................71
4.17 Blink Data Memory (R16) ..............................................................................................................................71
4.18 Inverted X Address Register (R17) ..............................................................................................................72
4.19 Inversion Start Line Address Register (R18) ..............................................................................................72
4.20 Inversion End Line Address Register (R19)................................................................................................72
4.21 Inverted Data Memory (R20) .........................................................................................................................73
4.22 Partial Start Line Address Register (R21) ...................................................................................................73
4.23 Gray Scale Data Registers 1 to 4 (R23, R24, R25, R26)..............................................................................74
4.24 Partial Gray Scale Data Registers 1 to 4 (R27, R28, R29, R30) ..................................................................74
4.25 Power System Control 1 (R32) .....................................................................................................................75
4.26 Power System Control 2 (R33) .....................................................................................................................76
4.27 Power System Control 3 (R34) .....................................................................................................................77
4.28 Electronic Volume Register (R35)................................................................................................................78
4.29 Partial Electronic Volume Register (R36)....................................................................................................78
4.30 Boost Adjustment Register (R37) ................................................................................................................78
4.31 Static Icon Address (R40).............................................................................................................................79
4.32 Static Icon Data Register (R41) ....................................................................................................................79
4.33 Static Icon Contrast (R42) ............................................................................................................................79
4.34 RAM Test Mode Setting (R44) ......................................................................................................................80
4.35 Signature Read (R45) ....................................................................................................................................80
12
Data Sheet S15548JJ1V0DS
µPD16686, 16687
5. LIST OF µPD16686, 16687 REGISTERS.............................................................................................. 81
6. POWER SUPPLY SEQUENCE ............................................................................................................. 82
6.1 Power ON Sequence (When Using On-Chip Power Supply, Power Supply ON → Display ON)................82
6.2 Power OFF Sequence (When Using On-Chip Power Supply)......................................................................83
6.3 Power ON Sequence (When Using External Driver Power Supply, Power ON → Display ON).................83
6.4 Power Supply OFF Sequence (When Using External Driver Power Supply)..............................................84
6.5 VOUT, VLCD Voltage Sequence (Power ON → Power OFF).............................................................................85
7. USE OF RAM TEST MODE ................................................................................................................... 86
8. USE OF STANDBY/HALT MODE ......................................................................................................... 87
9. ELECTRICAL SPECIFICATIONS.......................................................................................................... 88
10. CPU INTERFACE (REFERENCE EXAMPLE) .................................................................................... 97
Data Sheet S15548JJ1V0DS
13
µPD16686, 16687

1. PIN FUNCTIONS
1.1 Power Supply System Pins
Symbol
VDD1
Name
Logic power supply
pin
VDD2
Boost circuit
µPD16686 Pad No. µPD16687 Pad No.
103 to 105, 111,
103 to 105, 111,
I/O
Description
−
Power supply pin for logic circuit
119, 127, 137, 173 119, 127, 137, 173
100 to 102
100 to 102
−
Power supply pin for booster
35, 55, 58,
35, 55, 58,
−
Ground pin for logic and driver circuits
106 to 108, 114,
106 to 108, 114,
122, 132, 170,
122, 132, 170,
176, 185
176, 185
56, 57
56, 57
−
Power supply pin for driver. Output pin for on-
power supply pin
VSS
Logic and driver
ground pin
VOUT
Driver power
supply pin
chip booster.
Connect a 1 µF boost capacitor between this pin
and the GND pin.
If not using the on-chip booster, a direct driver
power supply can be input.
54 to 45
54 to 45
−
VLCD,
Reference power
These are reference power supply pins for the
VLC1 to VLC4
supply pins for
LCD driver.
driver
Connect a capacitor between these pins and the
GND pin if an internal bias has been selected.
C1+, C1−
+
−
C2 , C2
Boost capacitor
97 to 62
97 to 62
−
connection pins (1)
These are capacitor connection pins for the
booster. When using the on-chip booster,
C3+, C3−
connect a 1 µF capacitor between positive (+)
C4+, C4−
and negative (-) pins.
C5+, C5−
C6+, C6−
C7+, C7−
C8+, C8−
C9+, C9−
C1A
Boost capacitor
98, 99
98, 99
−
connection pin (2)
This is a capacitor connection pin for boost
adjustment. When using the on-chip booster,
connect a 1 µF capacitor between this pin and
the GND pin.
14
Data Sheet S15548JJ1V0DS
µPD16686, 16687
1.2 Logic System Pins
(1/2)
Symbol
PSX
Name
Select data
µPD16686 Pad No. µPD16687 Pad No.
117, 118
117, 118
I/O
Description
Input
This pin is used to select between parallel data
transfer
input and serial data input.
PSX = H: Parallel data input
PSX = L: Serial data input
/CS1,
Chip select
CS2
123, 124,
123, 124,
125, 126
125, 126
Input
These pins are used for chip select signals.
When /CS1 = L (CS2 = H), the chip is active and
can perform data input/output operations
including command and data I/O.
/RD
Read (enable)
135, 136
135, 136
Input
(E)
When i80 series parallel data transfer (/RD) has
been selected, the signal at this pin is used to
enable read operations. Data is output to the
data bus only when this pin is L.
When M68 series parallel data transfer (E) has
been selected, the signal at this pin is used to
enable write operations. Data is written at the
falling edge of this signal.
/WR
Write (read/write)
133, 134
133, 134
Input
(R,/W)
When i80 series parallel data transfer (/WR) has
been selected, the signal at this pin is used to
enable write operations. Data is written at the
rising edge of this signal.
When 68 series parallel data transfer (R,/W) has
been selected, this pin is used to determine the
direction of data transfer.
0: Write
1: Read
C86
Select interface
115, 116
115, 116
Input
This pin is used to switch between interface
modes (i80 series CPU or M68 series CPU).
0: Selects i80 series CPU mode
1: Selects M68 series CPU mode
D0 to D5,
Data bus
D6 (SCL)
(serial clock)
bus that connects to an 8-bit or 16-bit standard
D7 (SI)
(serial input)
CPU bus.
153 to 138
153 to 138
I/O
These pins comprise an 8-bit bidirectional data
When the serial interface has been selected
(PSX = L), D6 functions as a serial clock input
pin (SCL) and D7 functions as a serial data input
pin (SI). In either case, pins D0 to D5 are in high
impedance mode.
When the chip is not selected, D0 to D7 are in
high impedance mode.
RS
Index
130, 131
130, 131
Input
Usually, this pin is connected to the LSB of the
register/data,
standard CPU address bus and is used to
command
distinguish between data from index registers
selection
and data/commands.
RS = H: Indicates that data from D0 to D7 is
data/command
RS = L: Indicates that data from D0 to D7 is index
register contents
Data Sheet S15548JJ1V0DS
15
µPD16686, 16687
(2/2)
Symbol
/RES
Name
Reset
µPD16686 Pad No. µPD16687 Pad No.
128, 129
128, 129
I/O
Input
Description
When /RES is low, an internal reset is
performed. The reset operation is executed at
the /RES signal level.
CLS
Select clock
109, 110
109, 110
Input
division
This pin is used to select whether or not to use
the divider within the display clock oscillator.
CLS = H: Use divider
CLS = L: Do not use divider
When using an external clock, the CLS = L
setting is input via the OSCIN1 and OSCIN2 pins
as normal and partial clocks respectively.
When CLS = H, clock input is via the OSCIN1 pin
only.
IRS
VLCD regulation
120, 121
120, 121
Input
This pin is used to select the resistor that is
used for VLCD voltage regulation.
IRS = H: Uses internal resistor
IRS = L: Does not use internal resistor. The VLCD
voltage level is regulated using the external
voltage division resistor that is connected to the
VR pin.
SIGIN1,
Signature setting
171, 172,
171, 172,
SIGIN2
pins
174, 175
174, 175
Input
These pins can be used to set a unique signature
for the IC. The signal set via these pins can
subsequently be read from the signature read
register (R45).
OSCIN1
Oscillation signal
160, 161
160, 161
Input
pins
A resistor can be inserted between OSCIN1 and
OSCOUT, and OSCIN2 and OSCOUT. When using
an external oscillator, a clock signal is input via
OSCIN2
162, 163
162, 163
Input
the OSCIN pins according to the CLS pin's status
and the OSCOUT pin is left unconnected.
OSCOUT
164, 165
164, 165
Output
The wiring between OSCIN1-OSCOUT and
OSCIN2-OSCOUT must be as short as possible,
and use after proper evalluation.
16
Data Sheet S15548JJ1V0DS
µPD16686, 16687
1.3 Driver-Related Pins
Symbol
SEG1 to
Name
Segment
µPD16686 Pad No. µPD16687 Pad No.
425 to 298
SEG128
COM1 to
359 to 258,
I/O
Description
Output
Segment output pins
Output
Common output pins
Output
Segment output pins for static icon
Output
Common output pins for static icon
Input
These are op amp input pins for regulating the
250 to 225
Common
COM128
498 to 472,
363 to 464,
465 to 429,
471 to 496
294 to 258,
251 to 225
PSEG1
Static segment
to PSEG20
PCOM1
Static common
VRS
Op amp input
15 to 34,
15 to 34,
186 to 205
186 to 205
223, 224,
223, 224,
499, 500
497, 498
36, 37
36, 37
(Same driver waveform is output from two pins.)
driving voltage of the LCD. VRS is a reference
voltage input for the LCD voltage regulation
amplifier.
When using the internal drive circuit (i.e., when
OP1 = 1), we recommend inserting a 0.1 to 1 µF
capacitor between this pin and GND.
VR is an input for the op amp's feedback
43, 44
VR
connection. Insert this pin between GND and
43, 44
AMPOUT when using the feedback resistor for this
input.
This pin is valid only when not using an internal
resistor for VLCD voltage regulation (i.e., when
IRS = L). This pin cannot be used when using
the internal resistor for VLCD voltage regulation
(i.e., when IRS = H).
AMPOUT
Op amp output
41, 42
41, 42
Output
These are op amp output pins for regulating the
driving voltage of the LCD. When not using an
internal resistor for VLCD voltage regulation (i.e.,
when IRS = L), these outputs are connected to
39, 40
AMPOUTP
the LCD drive voltage regulation resistor (see
39, 40
3.6.3 Voltage regulator).
NEC recommends inserting a 0.1 to 1 µF
capacitor between these pins in order to stabilize
the internal op amp's output.
DUMMY
Dummy pin
1 to 14, 38,
1 to 14, 38,
59 to 61,
59 to 61,
206 to 222,
206 to 222,
252 to 257,
251 to 257,
295 to 297,
360 to 362,
426 to 428,
465 to 470,
466 to 471,
499, 500
−
Dummy pin
These pins are not connected inside IC. Usually,
leave these pins open.
501, 502,
Data Sheet S15548JJ1V0DS
17
µPD16686, 16687
1. 4 Test Pins
Symbol
Name
µPD16686 Pad No.
µPD16686 Pad No.
I/O
Description
TESTOUT
Test output
177, 178
177, 178
Output These pins are used when the IC is in test mode.
TFR
Test output
156, 157
156, 157
Output Usually, leave them open.
TFRSYNC
Test output
154, 155
154, 155
Output
TDOF
Test output
158, 159
158, 159
Output
TSISYNC
Test output
168, 169
168, 169
Output
TM,S
Test input
112, 113
112, 113
Input
This pin is used when the IC is in test mode.
Usually, connect to VDD1.
TOSCSYNC
Test output
166, 167
166, 167
Output This test output pin is used when the IC is in test
mode.
Usually, leave it open.
TSTIFS
179, 180,
179, 180,
TSTRTST
181, 182,
181, 182,
IC.
TSTVIHL
183, 184
183, 184
Normally, connect these pins to VSS.
18
Test input
Input
Data Sheet S15548JJ1V0DS
These pins are used to set a test mode for the
µPD16686, 16687
2. PIN I/O CIRCUITS AND RECOMMENDED CONNECTION OF UNUSED PINS
The I/O circuit type of each pin and recommended connection of unused pins are described below.
Pin Name
Input Type
I/O
Recommended Connection of Unused Pins
Notes
Note 1
PSX
Schmitt trigger
Input
Mode setting pin
/CS1
Filter
Input
Connect to VSS
−
CS2
Filter
Input
Connect to VDD1
−
/RD(E)
Filter
Input
Connect to VDD1 (i80 series interface), connect to VDD1 or
−
VSS (serial interface)
/WR(R,/W)






Input
C86
Schmitt trigger
Input
D0 to D5
Filter
I/O
Leave open
−
D6(SCL)
Filter
I/O
−
−
D7(SI)
Filter
I/O
−
RS
Filter
Input
TESTOUT
−
/RES
Schmitt trigger
Output
Input
Connect to VDD1 or VSS (serial interface)
−
Filter
Mode setting pin
Register setting pin
Note 1
−
Note 2
Leave open
−
Connect to VDD1
−
CLS
Schmitt trigger
Input
Mode setting pin
Note 1
IRS
Schmitt trigger
Input
Mode setting pin
Note 1
SIGIN1
Schmitt trigger
Input
Connect to VDD1 or VSS
−
SIGIN2
Schmitt trigger
Input
Connect to VDD1 or VSS
−
OSCIN1
CMOS
Input
−
−
OSCIN2
CMOS
Input
Connect to VDD1 or VSS (CLS = H)
−
OSCOUT
−
Output
Leave open (when using external clock)
−
TFR
CMOS
Output
Leave open
−
TFRSYNC
CMOS
Output
Leave open
−
TDOF
CMOS
Output
Leave open
−
TSISYNC
CMOS
Output
Leave open
−
TM,S
Schmitt trigger
TOSCSYNC
−
TSTIFS
Schmitt trigger
TSTRTST
TSTVIHL
Connect to VDD1
−
Leave open
−
Input
Connect to VSS (during normal use)
−
Schmitt trigger
Input
Connect to VSS (during normal use)
−
Schmitt trigger
Input
Connect to VSS (during normal use)
−
Input
Output
Notes 1. Connect to either VDD1 or VSS, depending on the mode setting.
2. Input either VDD1 or VSS output from CPU, depending on the mode setting.
Data Sheet S15548JJ1V0DS
19
µPD16686, 16687
3. DESCRIPTION OF FUNCTIONS
3.1 CPU Interface
3.1.1 Selection of interface type
The µPD16686, 16687 chips transfer data using an 8-bit bidirectional data bus (D7 to D0) or a serial data input (SI).
Setting the polarity of the PSX pin as either H (high) or L (low) selects between 8-bit parallel or serial data input, as shown
in the following table.
CS
RS
/RD
/WR
C86
D7
D6
D5 to D0
H: Parallel input
PSX
CS
RS
/RD
/WR
C86
D7
D6
D5 to D0
L: Serial input
CS
RS
Note1
Note1
Note1
SI
SCL
Hi-ZNote2
Notes 1. Fixed as either H or L
2. Hi-Z: High impedance
3.1.2 Parallel interface
When the parallel interface has been selected (PSX = H), setting the C86 pin as either H or L enables a direct connection
to an i80 series or M68 series CPU (see table below).
C86
CS
RS
/RD
/WR
D7 to D0
H: M68 series CPU
CS
RS
E
R,/W
D7 to D0
L: i80 series CPU
CS
RS
/RD
/WR
D7 to D0
The data bus signal is identified according to the combination of the RS, /RD(E), and /WR(R,/W) signals, as shown in the
following table.
Common
M68
RS
R,/W
/RD
/WR
1
1
0
1
Reads display data and registers
1
0
1
0
Writes display data and registers
20
i80
Function
0
1
0
1
Prohibited
0
0
1
0
Writes to control index register
Data Sheet S15548EJ1V0DS
µPD16686, 16687
(1) i80 series parallel interface
When i80 series parallel data transfer has been selected, data is written to the µ PD16686, 16687 at the rising
edge of the /WR signal. The data is output to the data bus when the /RD signal is L.
Figure 3-1. i80 Series Interface Data Bus Status
/CS1
(CS2=H)
/WR
/RD
Hi-Z
Hi-Z
Valid data
DBn
Data write
Data Read
(2) M68 series parallel interface
When M68 series parallel data transfer has been selected, data is written at the falling edge of the E signal when the R,/W
signal is L. During the data read operation, the data bus enters the output status when the R,/W signal is H, outputs valid
data at the rising edge of the E signal, and enters the high-impedance state at the falling edge of the R,/W signal (R,/W = L)
Figure 3-2. M68 Series Interface Data Bus Status
/CS1
(CS2=H)
R,/W
E
Hi-Z
DBn
Hi-Z
Invalid data
Valid data
Data Sheet S15548EJ1V0DS
21
µPD16686, 16687
3.1.3 Serial interface
When the serial interface has been selected (PSX = L), if the chip is active (/CS1 = L, CS2 = H), serial data input (SI) and
serial clock input (SCL) can be received. Serial data is read from D7 and then from D6 to D0 on the rising edge of the serial
clock, via the serial input pin. This data is synchronized on the eighth serial clock's rising edge and is then converted to
parallel data for processing. RS input is used to judge serial input data as display data or command data: when RS = H the
data is display/command data and when RS = L the data is index data. When the chip enters active mode, RS input is read
at the rising edge after every eighth serial clock and is then used to judge the serial input data. The serial interface signal
chart is shown below.
Figure 3-3. Serial Interface Signal Chart
CS2="H"
/CS1
SI
D7
D6
D5
D4
D3
D2
D1
D0
D7
D6
D5
D4
D3
D2
D1
D0
D7
D6
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
SCL
RS
Remarks 1. If the chip is not active, the shift register and counter are reset to their initial settings.
2. The data read function is disabled during serial interface mode.
3. When using SCL wiring, take care concerning the possible effects of terminating reflection and
noise from external sources. NEC recommends checking operation with the actual device.
3.1.4 Chip select
The µPD16686, 16687 have two chip select pins (/CS1 and CS2). The CPU parallel interface or serial interface can be
used only when /CS1 = L and CS2 = H. When chip select is inactive, D0 to D7 are set to high impedance (invalid) and input
of RS, /RD, or /WR is not active. If serial interface mode has been set, the shift register and counter are both reset.
3.1.5 Display data RAM and on-chip register access
Because only the required cycle time (tcyc) is saisfied when accessing the µPD16686, 16687 from the CPU, high-speed
data transfer is possible. There is no need to consider any wait time. No dummy data is needed when writing data. Even
when data is read, there is no need for dummy data except in the display memory access register (R11).
In other words, dummy data is required only when reading data from the display memory access register (R11).
Figure 3-4 illustrates this relationship.
22
Data Sheet S15548EJ1V0DS
µPD16686, 16687
Figure 3-4. Write and Read (1/2)
Write
<CPU>
/WR
DATA
N
N+1
<Internal timing>
N+2
N+3
Latch
BUS
holder
N
N+1
N+2
N+3
Write
signal
Read (display memory access register)
<CPU>
/WR
/RD
DATA
N
n
N
n+1
<Internal timing>
Address
preset
Read
signal
Column
address
Preset N
BUS
holder
N
Address set
#n
N+2
Increment N + 1
n
Dummy read
Data Sheet S15548EJ1V0DS
n+1
Data read
#n
n+2
Data read
#n + 1
23
µPD16686, 16687

Figure 3-4. Write and Read (2/2)
Read (other than display memory access register)
<CPU>
/WR
/RD
DATA
IRn
IR address
set #n
24
IRn data
IRn register
data read
IRn+1
IR address
set #n + 1
Data Sheet S15548EJ1V0DS
IRn + 1
Data
IRn + 1 register
data read
µPD16686, 16687
3.2 Display Data RAM
3.2.1 Display data RAM
This is the RAM that is used to store the display's dot data. The RAM configuration is 256 bits (32 x 8 bits) x 128 bits. Any
specified bit can be accessed by selecting the corresponding X address and Y address. In the data sent from the CPU, D0
to D7 corresponds to SEGx on the LCD display (see Figure 3-5).
The CPU writes data to and reads data from the display RAM via the I/O buffer, and these read/write operations are
independent of the signal read operations for the LCD driver. Accordingly, there are no adverse effects (such as flicker) in
the LCD display when display data RAM is accessed asynchronously.
Figure 3-5. Display Data RAM
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Pixel 3
D0
Pixel 1
Pixel 2
Pixel 4
LCD panel
Pixel 1
Pixel 2
Pixel 3
Pixel 4
Pixel 1
Pixel 2
Pixel 3
Pixel 4
Pixel 1
Pixel 2
Pixel 3
Pixel 4
Pixel 1
Pixel 2
Pixel 3
Pixel 4
X address 00H
X address 01H
SEG1 SEG2
D7 D6 D5 D4
0
1
0
0
1
1
0
0
1
0
1
0
0
1
0
1
0
0
1
0
0
0
0
0
0
0
0
0
0
0
COM0
COM1
COM2
COM3
COM4
Display data
LCD display
Data Sheet S15548EJ1V0DS
25
µPD16686, 16687
3.2.2 X address circuit
As shown in Figure 3-6, the display data RAM's X address is specified via the X address register (R3). When using X
address increment mode (INC = 0: control register 2 (R1)), the specified X address is incremented (by 1) each time a
display data read or write operation is executed. The CPU is able to continuously access the display data. The X address is
incremented to 1FH, after which the Y address is incremented after each read or write operation and the X address is set
back to 00H.
For monochrome (black-and-white) display, the X address is incremented to 0FH, after which the Y address is
incremented after each read or write operation and the X address is set back to 00H.
3.2.3 Column address circuit
When displaying the contents of the display data RAM, the column address corresponds to the SEG output, as shown in
Figure 3-6. Similarly, the static icon address corresponds to the PSEG output.
As is shown in Tables 3-1 and 3-2, the correspondence between the display RAM's column address and segment output
can be inverted using the ADC flag in control register 1 (R0) (segment driver direction selection flag). This reduces the
constraints on chip layout when assembling the LCD module.

Table 3-1. Relationship Between Column Address and SEG Output
SEG Output

SEG1
SEG128
ADC
0
00H
→
Column address
→
7FH
(D1)
1
7FH
←
Column address
←
00H
Table 3-2. Relationship Between Column Address for Static Icon and PSEG Output
PSEG Output
PSEG1
PSEG20
ADC
0
00H
→
Column address
→
04H
(D1)
1
04H
←
Column address
←
00H
3.2.4 Y address circuit
As is shown in Figure 3-6, the Y address register (R4) is used to specify the display data RAM's Y address. When using
Y address increment mode (INC = 1: control register 2 (R1)), the specified Y address is incremented (by 1) each time a
display data read or write operation is executed. The CPU is able to continuously access the display data. The Y address
is incremented to 7FH, after which the X address is incremented after each read or write operation and the Y address is set
back to 00H.
3.2.5 Common scan circuit
The common scan circuit sets the scan lines for common signals. The scan direction is set using the COMR flag in control
register 1 (R0), as shown in Table 3-3.
For example, when using 1/80 duty, when COMR = L the scan direction is COM1 → COM80 and when COMR = H,
the scan direction is COM80 → COM1 using the COM80 to COM1 pins.

Table 3-3. Relationship Between Common Scan Circuit and Scan Direction
26
COMR
0
COM1
→
COM128
(D0)
1
COM128
←
COM1
Data Sheet S15548EJ1V0DS
µPD16686, 16687
D4
D3
D2
D1
0
0
0
0
0
1
0
0
0
1
1
1
D0
0
1
1
00H
01H
Data D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0
1FH
D7 D6 D5 D4 D3 D2 D1 D0
COM
output
Line
address
00H
COM1
01H
02H
03H
04H
05H
06H
07H
08H
09H
0AH
0BH
0CH
0DH
0EH
0FH
10H
11H
12H
13H
14H
15H
16H
17H
18H
19H
1AH
1BH
1CH
1DH
1EH
1FH
20H
21H
22H
23H
24H
25H
COM2
COM3
COM4
COM5
COM6
COM7
COM8
COM9
COM10
COM11
COM12
COM13
COM14
COM15
COM16
COM17
COM18
COM19
COM20
COM21
COM22
COM23
COM24
COM25
COM26
COM27
COM28
COM29
COM30
COM31
COM32
COM33
COM34
COM35
COM36
COM37
COM38
Start
Data Sheet S15548EJ1V0DS
ADC
Column
address
COM119
COM120
COM121
COM122
COM123
COM124
COM125
COM126
COM127
COM128
1 0
LCD
output D0 D0
SEG128 00 7F
SEG127 01 7E
SEG126 02 7D
SEG125 03 7C
78 07
SEG8
79 06
SEG7
7A 05
SEG6
SEG5
7B 04
7C 03
SEG4
7D 02
SEG3
SEG2
7F 00
7E 01
76H
77H
78H
79H
7AH
7BH
7CH
7DH
7EH
7FH
SEG1
X address
Figure 3-6. Configuration of X Address Register
27
µPD16686, 16687
3.2.6 Display start line set
As is shown in Figure 3-6, display start line set specifies the Y address that corresponds to the COM1 output for displaying
the contents of display data RAM. The display start line set (R12) is used to specify the top line in the display. The screen
can be scrolled, overwritten, etc. A 7-bit display start address is set to the display start line register.
3.2.7 Display data latch circuit
The display data latch circuit is used for temporary storage of data that is output to the LCD driver from the display data
RAM.
The display scan command that sets normal or reverse display mode and the display ON/OFF command control latched
data so that there is no effect on the data in the display data RAM.
28
Data Sheet S15548EJ1V0DS
µPD16686, 16687
3.3 Blink/Reverse Display Circuit
The µPD16686, 16687 enable blinking display and reverse display in designated parts of the full dot display. A blinking
display is achieved by cycling ON/OFF (level 0 when four-level gray scale mode has been selected) at approximately 1 Hz
and reverse display is achieved by inverting the display level value.
The area designated for blinking is specified via the blink start/end line address registers (R14 and R15), the blink X
address register (R13), and the blink data memory (R16).
First, the blinking display's start and end line addresses are selected via the blink start/end line address registers. Next,
the blink X address register (R13) and the blink data memory (R16) are used to select the column for the blinking display.
The inversion start/end line address registers (R18 and R19), the inverted X address register (R17), and inverted data
memory (R20) are used to select the reverse display area.
First, the inversion start/end line address registers (R18 and R19) are set to select the line addresses where the reverse
display will start and end. Next, the inverted X address register (R17) and the inverted data memory (R20) are used to
select the column for the reverse display. The specified blink/inverted X address is incremented (by 1) with each input of
blink/reverse display data.
The blink RAM and inversion RAM, which have a 128 bit (16 x 8 bit) configuration, are used to store data for blinking
display and reverse display respectively. To access the desired bit, simply specify the corresponding X address. The
blink/reverse data (data bits D0 to D7 sent from the CPU) correspond to SEGx on the LCD display, as shown in Figure 3-7.
After the area and data settings are complete, the BLD bit and IVD bit in the control register 1 (R0) are set to H, at which
point the blinking and/or reverse display of data begins. Figure 3-8 illustrates the relationship between the start line address,
end line address, blink/reverse data, and LCD display.
Table 3-4. Inversion Manipulation and Display
Original Level
After Inversion
Four-level gray scale display mode
0, 0
1, 1
0, 1
1, 0
1, 0
0, 1
1, 1
0, 0
B/W display mode
1
0
0
1
D3
0
0
D2
0
0
1
D1
D0
0
0
1
0
00H
1
01H
1
0FH
1
Data Sheet S15548EJ1V0DS
Column
address
ADC
1 0
LCD
output D0 D0
SEG128 00 7F
SEG127 01 7E
SEG126 02 7D
SEG125 03 7C
SEG124 04 7B
SEG123 05 7A
SEG122 08 79
77 08
D7 D6 D5 D4 D3 D2 D1 D0
SEG121 07 78
78 07
SEG9
SEG16 70 0F
79 06
SEG8
SEG15 71 0E
7A 05
SEG7
SEG14 72 0D
7B 04
SEG6
SEG13 73 0C
7C 03
SEG5
SEG12 74 0B
7D 02
SEG4
SEG11 75 0A
7E 01
SEG3
SEG10 76 09
7F 00
SEG2
Data D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0
SEG1
X address
Figure 3-7. Correspomdence Between Blink/Reverse Data and Segments
29
µPD16686, 16687
Figure 3-8. Setting Image of Blink/Reverse Display Area
Blink/revese
data
n
n+1
n+2
n+3
n+4
n+5
Start line
End line
Blinking or reverse display pixels.
Example of sequence for setting blink/reverse display
Blink/inversion start line
address register
Blink/inversion end line
address register
Blink/inverted
X address register
Blink/inverted
data memory
Data
Write completed ?
Yes
Control register 1
(BLD, IVD = H)
30
n+6
n+7
001 100 10 00 10 01 10 00 01 01 00 00 10 01 10 0 001 01 00 0 011 00 10 0 011 0010 0 001 0100
Data Sheet S15548EJ1V0DS
No
µPD16686, 16687
3.4 Oscillator
The µPD16686, 16687 include a CR-type oscillator (R external) for normal and partial display, which generates the
display clocks.
The clocks from this oscillator are controlled via the CLS pin and the DTY flag in the control register 2 (R1). The clock
configuration for the display can be set to suit the target system.
The functions of this circuit are described below.
•The oscillator for normal and partial display is enabled only when resistors RN and RP have been connected.
The DTY flag in the control register 2 (R1) and the CLS pin status are used to switch between the oscillation
clocks for normal display and partial display modes.
•The divider divides the external clock that has been input for the normal oscillator and the normal display into a
clock for partial display. The external clock that is input for the partial oscillator and partial display is also
divided for the partial display.
•The division level is automatically set for the divider based on the relationship between the ON/OFF status of
the divider setting pin (CLS pin) and the duty of the specified partial display, as shown in Table 3-5.
Figure 3-9. Oscillator Block
Selected via DTY/CLS
OSCIN1
OSCIN2
Normal display/
partial display
oscillator
Signal to select division level
for partial display
OSCOUT
MUX
TOSCSYNC
To graphic driver
Partial display
divider
Normal/partial signal
CLS
Signal to select division level
for static icon display
Static icon
display divider
To static icon driver
The relationship between the frame frequency (fFRAME), oscillation frequency (fOSCIN1), and setting duty (in normal display
mode) is described below.
fFRAME = fOSCIN1 ÷ 8 ÷ N (in four-level gray scale display mode)
fFRAME = fOSCIN1 ÷ 4 ÷ N (in B/W display mode)
N = 1/N duty (setting duty)
Data Sheet S15548EJ1V0DS
31
µPD16686, 16687
Table 3-5. Setting of Division Level for Partial Display and Static Icon Display (1/2)
In four-level gray scale display mode (GRAY = L, control register 2 (R1))
Display
Normal Display
Partial Display
Mode
Duty Ratio
Duty Ratio
Division Divider
Normal/Partial
Source
ON/OFF
OSCIN1
Select DTY
CLS
/OSCIN2
1/38
1/25
1/12
Partial
Static Icon
Division
Division
Ratio
Ratio
-
1/12
Comments
L(OFF)
OSCIN1
L (Normal)
Static icon frame frequency: fOSCIN1 /12(division ratio) /32
1/38
H(ON)
1/25
1/1 to 1/80
1/12
1/38
1/25
1/1
OSCIN2
L(OFF)
1/12
1/1
H (Partial)
1/38
1/25
1/4
1/2
1/2
OSCIN1
H(ON)
1/2
1/12
1/12
1/4
Partial frame frequency:
fOSCIN2 /8 /38
Partial frame frequency:
fOSCIN2 /8 /25
Partial frame frequency:
fOSCIN2 /2(division ratio) /8 /12
Partial frame frequency:
fOSCIN1 /2(division ratio) /8 /38
Partial frame frequency:
fOSCIN1 /2(division ratio) /8 /25
Partial frame frequency:
fOSCIN1 /4(division ratio) /8 /12
Static icon frame frequency:
fOSCIN2 /4(division ratio) /32
Static icon frame frequency:
fOSCIN2 /4(division ratio) /32
Static icon frame frequency:
fOSCIN2 /4(division ratio) /32
Static icon frame frequency:
fOSCIN1 /12(division ratio) /32
Static icon frame frequency:
fOSCIN1 /12(division ratio) /32
Static icon frame frequency:
fOSCIN1 /12(division ratio) /32
1/38
1/25
1/12
L(OFF)
OSCIN1
L (Normal)
-
1/16
Static icon frame frequency: fOSCIN1 /16(division ratio) /32
1/38
1/25
1/81 to 1/96
H(ON)
1/12
1/38
1/25
1/1
OSCIN2
L(OFF)
1/1
H (Partial)
1/12
1/38
Four-level
1/25
gray scale
1/12
GRAY = L
1/38
1/25
1/12
1/38
1/25
1/97 to 1/112
1/4
1/2
1/2
OSCIN1
H(ON)
1/4
1/16
1/8
Partial frame frequency:
fOSCIN2 /8 /38
Partial frame frequency:
fOSCIN2 /8 /25
Partial frame frequency:
fOSCIN2 /2(division ratio) /8 /12
Partial frame frequency:
fOSCIN1 /2(division ratio) /8 /38
Partial frame frequency:
fOSCIN1 /4(division ratio) /8 /25
Partial frame frequency:
fOSCIN1 /8(division ratio) /8 /12
Static icon frame frequency:
fOSCIN2 /4(division ratio) /32
Static icon frame frequency:
fOSCIN2 /4(division ratio) /32
Static icon frame frequency:
fOSCIN2 /4(division ratio) /32
Static icon frame frequency:
fOSCIN1 /16(division ratio) /32
Static icon frame frequency:
fOSCIN1 /16(division ratio) /32
Static icon frame frequency:
fOSCIN1 /16(division ratio) /32
L(OFF)
OSCIN1
L (Normal)
-
1/16
Static icon frame frequency: fOSCIN1 /16(division ratio) /32
H(ON)
1/12
1/38
1/25
1/1
OSCIN2
L(OFF)
1/1
H (Partial)
1/12
1/38
1/25
1/4
1/2
1/2
OSCIN1
H(ON)
1/4
1/12
1/16
1/8
Partial frame frequency:
fOSCIN2 /8 /38
Partial frame frequency:
fOSCIN2 /8 /25
Partial frame frequency:
fOSCIN2 /2(division ratio) /8 /12
Partial frame frequency:
fOSCIN1 /2(division ratio) /8 /38
Partial frame frequency:
fOSCIN1 /4(division ratio) /8 /25
Partial frame frequency:
fOSCIN1 /8(division ratio) /8 /12
Static icon frame frequency:
fOSCIN2 /4(division ratio) /32
Static icon frame frequency:
fOSCIN2 /4(division ratio) /32
Static icon frame frequency:
fOSCIN2 /4(division ratio) /32
Static icon frame frequency:
fOSCIN1 /16(division ratio) /32
Static icon frame frequency:
fOSCIN1 /16(division ratio) /32
Static icon frame frequency:
fOSCIN1 /16(division ratio) /32
1/38
1/25
1/12
L(OFF)
OSCIN1
L (Normal)
-
1/20
Static icon frame frequency: fOSCIN1 /20(division ratio) /32
1/38
1/25
1/113 to 1/128
H(ON)
1/12
1/38
1/25
1/1
OSCIN2 L(OFF)
1/12
1/38
1/25
1/12
32
1/1
H (Partial)
1/4
1/2
1/2
OSCIN1
H(ON)
1/4
1/20
1/8
Data Sheet S15548EJ1V0DS
Partial frame frequency:
fOSCIN2 /8 /38
Partial frame frequency:
fOSCIN2 /8 /25
Partial frame frequency:
fOSCIN2 /2(division ratio) /8 /12
Partial frame frequency:
fOSCIN1 /2(division ratio) /8 /38
Partial frame frequency:
fOSCIN1 /4(division ratio) /8 /25
Partial frame frequency:
fOSCIN1 /8(division ratio) /8 /12
Static icon frame frequency:
fOSCIN2 /4(division ratio) /32
Static icon frame frequency:
fOSCIN2 /4(division ratio) /32
Static icon frame frequency:
fOSCIN2 /4(division ratio) /32
Static icon frame frequency:
fOSCIN1 /20(division ratio) /32
Static icon frame frequency:
fOSCIN1 /20(division ratio) /32
Static icon frame frequency:
fOSCIN1 /20(division ratio) /32
µPD16686, 16687
Table 3-5. Setting of Division Level for Partial Display and Static Icon Display (2/2)
In black/white display mode (GRAY = H, control register 2 (R1))
Display
Normal Display
Partial Display
Mode
Duty Ratio
Duty Ratio
Division Divider
Normal/Partial
Source
ON/OFF
OSCIN1
Select DTY
CLS
/OSCIN2
Partial
Static Icon
Division
Division
Ratio
Ratio
-
1/6
Comments
1/38
1/25
1/12
L(OFF)
OSCIN1
1/38
1/25
1/1 to 1/80
L (Normal)
H(ON)
1/12
1/38
1/25
1/1
OSCIN2
L(OFF)
1/1
H (Partial)
1/12
1/38
1/25
H(ON)
1/2
L (Normal)
B/W
OSCIN2
L(OFF)
1/1
H (Partial)
1/8
1/2
1/2
1/2
OSCIN1
H(ON)
1/4
1/12
1/8
1/8
1/38
1/25
1/12
-
1/1
1/38
GRAY = H
Static icon frame frequency:
fOSCIN2 /2(division ratio) /32
Static icon frame frequency:
fOSCIN2 /2(division ratio) /32
Static icon frame frequency:
fOSCIN2 /2(division ratio) /32
Static icon frame frequency:
fOSCIN1 /6(division ratio) /32
Static icon frame frequency:
fOSCIN1 /6(division ratio) /32
Static icon frame frequency:
fOSCIN1 /6(division ratio) /32
Static icon frame frequency: fOSCIN1 /8(division ratio) /32
H(ON)
1/12
1/25
1/6
Partial frame frequency:
fOSCIN2 /4 /38
Partial frame frequency:
fOSCIN2 /4 /25
Partial frame frequency:
fOSCIN2 /2(division ratio) /4 /12
Partial frame frequency:
fOSCIN1 /2(division ratio) /4 /38
Partial frame frequency:
fOSCIN1 /2(division ratio) /4 /25
Partial frame frequency:
fOSCIN1 /4(division ratio) /4 /12
L(OFF)
OSCIN1
1/25
1/12
1/38
1/25
1/2
1/4
1/38
1/25
1/12
1/38
1/2
1/2
OSCIN1
1/12
1/81 to 1/96
Static icon frame frequency: fOSCIN1 /6(division ratio) /32
Partial frame frequency:
fOSCIN2 /4 /38
Partial frame frequency:
fOSCIN2 /4 /25
Partial frame frequency:
fOSCIN2 /2(division ratio) /4 /12
Partial frame frequency:
fOSCIN1 /2(division ratio) /4 /38
Partial frame frequency:
fOSCIN1 /4(division ratio) /4 /25
Partial frame frequency:
fOSCIN1 /8(division ratio) /4 /12
Static icon frame frequency:
fOSCIN2 /2(division ratio) /32
Static icon frame frequency:
fOSCIN2 /2(division ratio) /32
Static icon frame frequency:
fOSCIN2 /2(division ratio) /32
Static icon frame frequency:
fOSCIN1 /8(division ratio) /32
Static icon frame frequency:
fOSCIN1 /8(division ratio) /32
Static icon frame frequency:
fOSCIN1 /8(division ratio) /32
L(OFF)
OSCIN1
L (Normal)
-
1/8
Static icon frame frequency: fOSCIN1 /8(division ratio) /32
1/38
1/97 to 1/112
1/25
1/12
H(ON)
1/38
1/25
1/1
OSCIN2
L(OFF)
1/1
H (Partial)
1/12
1/38
1/25
1/113 to 1/128
H(ON)
1/4
L (Normal)
-
1/10
Static icon frame frequency: fOSCIN1 /10(division ratio) /32
H(ON)
1/1
OSCIN2
L(OFF)
1/1
H (Partial)
1/12
1/38
1/12
Static icon frame frequency:
fOSCIN2 /2(division ratio) /32
Static icon frame frequency:
fOSCIN2 /2(division ratio) /32
Static icon frame frequency:
fOSCIN2 /2(division ratio) /32
Static icon frame frequency:
fOSCIN1 /8(division ratio) /32
Static icon frame frequency:
fOSCIN1 /8(division ratio) /32
Static icon frame frequency:
fOSCIN1 /8(division ratio) /32
L(OFF)
OSCIN1
1/38
1/25
1/8
1/8
1/25
1/12
1/25
1/2
1/2
OSCIN1
1/12
1/38
1/25
1/12
1/38
1/2
Partial frame frequency:
fOSCIN2 /4 /38
Partial frame frequency:
fOSCIN2 /4 /25
Partial frame frequency:
fOSCIN2 /2(division ratio) /4 /12
Partial frame frequency:
fOSCIN1 /2(division ratio) /4 /38
Partial frame frequency:
fOSCIN1 /4(division ratio) /4 /25
Partial frame frequency:
fOSCIN1 /8(division ratio) /4 /12
1/2
1/2
1/2
OSCIN1
H(ON)
1/4
1/10
1/8
Data Sheet S15548EJ1V0DS
Partial frame frequency:
fOSCIN2 /4 /38
Partial frame frequency:
fOSCIN2 /4 /25
Partial frame frequency:
fOSCIN2 /2(division ratio) /4 /12
Partial frame frequency:
fOSCIN1 /2(division ratio) /4 /38
Partial frame frequency:
fOSCIN1 /4(division ratio) /4 /25
Partial frame frequency:
fOSCIN1 /8(division ratio) /4 /12
Static icon frame frequency:
fOSCIN2 /2(division ratio) /32
Static icon frame frequency:
fOSCIN2 /2(division ratio) /32
Static icon frame frequency:
fOSCIN2 /2(division ratio) /32
Static icon frame frequency:
fOSCIN1 /10(division ratio) /32
Static icon frame frequency:
fOSCIN1 /10(division ratio) /32
Static icon frame frequency:
fOSCIN1 /10(division ratio) /32
33
µPD16686, 16687
Table 3-6 shows the relationship between the CLS pin, resistors RN and RP, and the display clock circuit.
Table 3-6. Relationship Between CLS Pin/Resistors and Display Clock Circuit.
RN
Connection
RP
Connection
CLS
Clock for Normal Display
Clock for Partial Display
Use Example
(Figure 3-10)
Connected
Connected
L
Internal oscillator
Internal oscillator
A
Connected
Not connected
H
Internal oscillator
Divided from oscillator clock
B
Not connected
Connected
L
External clock
Internal oscillator
C
Not connected
Not connected
L
External clock
External clock
D
Not connected
Not connected
H
External clock
Divided from external clock
E
Figure 3-10. Clock Use Examples
(A)
(B)
OSCIN1
RN
OSCIN2
OSCIN1
H or L
RN
OSCIN2
RP
OSCOUT
OSCOUT
(D)
(C)
fN
fN
OSCIN1
OSCIN1
fP
OSCIN2
OSCIN2
RP
OSCOUT
(E)
fN
OSCIN1
H or L
Open
34
OSCIN2
OSCOUT
Data Sheet S15548EJ1V0DS
Open
OSCOUT
µPD16686, 16687
3.5 Display Timing Generator
The display timing generator generates timing signals from the display clock to the line address circuit and the display
data latch circuit.
Display data is latched into the display data latch circuit in synch with the display clock and is output via segment driver
output pins.
Reading of the display data is completely independent of the CPU's accessing of the display data RAM. Consequently,
there are no adverse effects (such as flicker) on the LCD panel even when the display data RAM is accessed
asynchronously in relation to the LCD contents.
The internal common timing is generated from the display clock. As shown in Figure 3-11, a driver waveform based on the
frame AC drive method is generated for the LCD driver.
Data Sheet S15548EJ1V0DS
35
µPD16686, 16687
Figure 3-11. Driver Waveform Based on Frame AC Drive Method
1 frame
1 2 3 4 5 6 7 8
126 127 128
1 2 3 4 5 6 7 8
RAM
DATA
VLCD
VLC1
VLC2
SEG1
VLC3
VLC4
VSS
VLCD
VLC1
VLC2
COM1
VLC3
VLC4
VSS
VLCD
VLC1
VLC2
COM2
VLC3
VLC4
VSS
VLCD
VLC1
VLC2
COM128
VLC3
VLC4
VSS
36
Data Sheet S15548EJ1V0DS
126 127 128
µPD16686, 16687
3.6 Power Supply Circuit
3.6.1 Power supply circuit
The power supply circuit supplies the voltage needed to drive the LCD. It includes a booster, voltage regulator, and
voltage follower.
In the power supply circuit, the power system control 1 (R32) is used to control the ON/OFF status of the power supply
circuit's booster, voltage regulator (also called V regulator), and voltage follower (V/F). This makes it possible to jointly use
an external power supply together with certain functions of the on-chip power supply. Table 3-7 shows the function that
controls the 3-bit data in the power system control 1 (R32) and Table 3-7 shows a reference chart of combinations.
Table 3-7. Control Values of Bits in Power System Control 1
Status
Item
1
0
OP2
Booster control bit
ON
OFF
OP1
Voltage regulator (V regulator) control bit
ON
OFF
OP0
Voltage follower (V/F) control bit
ON
OFF
Table 3-8. Reference Chart of Combinations
Use Status
OP2 OP1 OP0
Booster
V Regulator
V/F
External
Power Supply
Input
Boost-Related
System Pins
<1> Use on-chip power supply
1
1
1
enable
enable
enable
VDD2
Used
<2> Use V regulator and V/F only
0
1
1
disable
enable
enable
VOUT
Not connected
<3> Use V/F only
0
0
1
disable
disable
enable
VOUT, AMPOUT
Not connected
<4> Use external power supply
0
0
0
disable
disable
disable
VOUT,
Not connected
only
VLCD to VLC4
Caution The boost-related system pins are indicated as pins C1+, C1− to C9+, C9−, and C1A.
3.6.2 Booster
A booster that boosts the LCD driving voltage by 2 to 9 times is incorporated in the power supply circuit.
Since the booster uses signals from the on-chip oscillator, either the oscillator must be operating or a display clock must be
input from an external source.
The booster uses pins C1+, C1− to C9+, C9− for normal boost and pins C1A and VDD2 for boost regulation. The wire
impedance should be kept as low as possible. The number of boost levels is set using the FBS2, FBS1, and FBS0 flags in
power system control 3 (R34), as shown in Table 3-9.
Caution If a capacitor is connected to a boost-related system pin that is not for one of these set boost levels,
current consumption may increase. Therefore, do not connect any capacitors beyond the number of
set boost levels. This also applies for the CA1 pin, used to regulate the boost levels.
Figure 3-12 describes the connection method for boost levels and capacitors.
The partial booster is settings are made using the BST1 and BST0 flags in the power system control 3 (R34), as shown in
Table 3-10.
Data Sheet S15548EJ1V0DS
37
µPD16686, 16687
C2−
C3+
C3−
C4+
C4−
C5+
C5−
C6+
C6−
C7+
C7−
C8+
C8−
C9+
C9−
C1A
C2−
C3+
C3−
C4+
C4−
C5+
C5−
C6+
C6−
C7+
C7−
C8+
C8−
C9+
C9−
C1A
C2−
C3+
C3−
C4+
C4−
C5+
C5−
C6+
C6−
C7+
C7−
C8+
C8−
C9+
C2−
C3+
C3−
C4+
C4−
C5+
C5−
C6+
C6−
C7+
C7−
C8+
C8−
C9+
C2−
C3+
C3−
C4+
C4−
C5+
C5−
C6+
C6−
C7+
C7−
C8+
C2−
C3+
C3−
C4+
C4−
C5+
C5−
C6+
C6−
C7+
C7−
C8+
9x boost mode
8x boost mode
7x boost mode
6x boost mode
C8−
C9+
C9−
C1A
C9−
C1A
5x boost mode
open
open
C8−
C9+
open
C9−
C1A
open
C9−
C1A
open
C1−
C2+
C1−
C2+
C1−
C2+
C1−
C2+
C1−
C2+
C1−
C2+
open
C1+
C1+
C1+
C1+
C1+
C1+
Figure 3-12. Connection Method for Boost Levels and Capacitors
Table 3-9. Boost Level Settings for Normal Display's Booster
FBS2
FBS1
FBS0
Boost Level
0
0
0
4x
0
0
1
5x
0
1
0
6x
0
1
1
7x
1
0
0
8x
1
0
1
9x
1
1
0
Prohibited
1
1
1
Prohibited
Table 3-10. Boost Level Settings for Partial Display's Booster
38
BST1
BST0
Boost Level
0
0
2x
0
1
3x
1
0
4x
1
1
Prohibited
Data Sheet S15548EJ1V0DS
4x boost mode
µPD16686, 16687
3.6.3 Voltage regulator
The boost voltage from VOUT is supplied to the voltage regulator and output as the LCD drive voltage VLCD.
Since the µPD16686, 16687 has a 256-step electronic volume function and an on-chip resistor for VLCD voltage regulation,
a small number of components can be used to configure a highly accurate voltage regulator.
(1) When using an on-chip resistor for VLCD voltage regulation
The on-chip resistor for VLCD voltage regulation and the electronic volume function can be used to regulate the contrast of
the LCD contents by controlling the LCD drive voltage VLCD using commands only. In such cases, no external resistor is
needed.
If VLCD < VOUT, then the value for VLCD can be determined from the following equation.
Example Equation VLCD < VOUT
VLCD = (1 + Rb ) VEV
Ra
VLCD = (1 + Rb ) (1 − α ) VREG
Ra
384
Remark VEV = (1 − α ) VREG
384
Figure 3-13. When Using On-Chip Resistor for VLCD Voltage Regulation
+
VEV (Constant voltage source +
electronic volume)
VLCD
Rb
Ra
VREG is the IC's on-chip constant voltage source, for which three types of temperature characteristic curves are available.
These temperature characteristic curves can be adjusted via settings in the power system control 1 (R32) (TSC1, TCS0),
as shown in Table 3-11.
Table 3-11 shows the VREG voltage when TA = 25°C.
Table 3-11. VREG Voltage When TA = 25°°C
Status
Internal power supply
TCS1
TCS0
Temperature Curve
Unit
0
0
VREG (TYP.)
Unit
0
−0.09
%, °C
1
−0.11
0.80
0.88
V
1
0
−0.12
0.75
1
1
External inputs
−
α is the electronic volume register (R35) value. Any of 256 statuses can be set as the fetched status for α corresponding
to the data set to the 8-bit electronic control register. α values based on settings in the electronic volume register (R35:
normal display mode) and partial electronic volume register (R36: partial display mode) are listed in Table 3-12 on the next page.
Data Sheet S15548EJ1V0DS
39
µPD16686, 16687
Table 3-12. α Values Based on Settings in Electronic Volume Register
Register
α
EV7
EV6
EV5
EV4
EV3
EV2
EV1
EV0
PEV7
PEV6
PEV5
PEV4
PEV3
PEV2
PEV1
PEV0
0
0
0
0
0
0
0
0
384
0
0
0
0
0
0
0
1
254
0
0
0
0
0
0
1
0
253
0
0
0
0
0
0
1
1
252
:
:
1
1
1
1
1
1
0
1
2
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
1
0
Rb/Ra is an on-chip resistance factor used for the VLCD voltage regulator. This factor can be controlled at eight levels
based on settings in power control 2 (R33) ([VRR2, VRR1, VRR0]: normal display mode and [PVR2, PVR1, PVR0]: partial
display mode). Reference voltage values (1 + Rb/Ra) are determined based on 4-bit data set to VLCD's on-chip resistance
factor register, as shown in Table 3-13.
Table 3-13. Determination of Reference Voltage Values Based on Settings in
On-Chip Resistance Factor Register
Register
40
VRR2
VRR1
VRR0
PVR2
PVR1
PVR0
0
0
0
0
0
1
8
0
1
0
12
0
1
1
13
1
0
0
16
1
0
1
19
1
1
0
21
1
1
1
24
Data Sheet S15548EJ1V0DS
1+Rb/Ra
5
µPD16686, 16687
(2) When using an external resistor (instead of using the on-chip resistor for VLCD voltage regulation)
Instead of using only the on-chip resistor setting for VLCD voltage regulation (IRS = L), resistors (Ra', Rb' and Rc') can be
added between VSS and VR, between AMPOUTP and AMPOUT, and between VR and AMPOUT to set the LCD drive voltage
VLCD. In such cases, the electronic volume function can be used to control the LCD drive voltage VLCD and to regulate the
contrast of the LCD contents via commands.
In addition, the µPD16686, 16687 enable selection between two display values (for normal display and partial display).
The value is set using an external division resistor and is automatically selected by the DTY flag in the control register 2
(R1).
The VLCD value can be determined using Example 1 (DTY = 0) and Example 2 (DTY = 1) if it is within the range of VLCD <
VOUT.
Example 1. DTY = 0, normal display mode
VLCD = (1 + Rb′ ) VEV
Ra′
VLCD = (1 + Rb′ ) (1 − α ) VREG
Ra′
384
Remark VEV (1 −
α ) VREG
384
Example 2. DTY = 1, partial display mode
Rb′ × Rc ) VEV
Ra′(Rb′ + Rc)
VLCD = (1+ Rb′ × Rc ) (1 − α ) VREG
384
Ra′(Rb′ + Rc)
VLCD = (1+
Remark VEV = (1 −
α ) VREG
384
Figure 3-14. When Using External Resistor
+
VLCD
A
VR
AMPOUT
B
Normal/partial VLC1 regulation
select circuit
AMPOUTP
Rb'
Rc
Ra'
A
B
Normal display mode
(DTY = 0)
A
B
Partial display mode
(DTY = 1)
Data Sheet S15548EJ1V0DS
41
µPD16686, 16687
3.6.4 Use of op amp for level power supply control
Although the µPD16686, 16687 include a circuit designed for low power consumption (HPM1, HPM0 = 0, 0), display
quality problems may occur when a large-load LCD panel is used. In such cases, the display quality and power
consumption level can be improved by setting. The HPM1 and HPM0 flags in the power system control 1(R32) to "0,
1" to "1, 1" to switch to the op amp driver capacity for mode settings shown in Table 3-14. Check the actual display quality
before deciding which mode to set.
If setting high power mode still does not sufficiently improve the display quality, the LCD drive voltage must be provided
from an external power source.
Table 3-14. Op Amp Mode Setting
42
HPM1
HPM0
Mode Setting
0
0
Normal mode
0
1
Low power mode
1
0
High power mode
1
1
For power activation
Data Sheet S15548EJ1V0DS
µPD16686, 16687
3.6.5 Application examples of power supply circuits
Figures 3-15 to 3-19 show application examples of power supply circuits.
Figure 3-15. IRS = H, [OP2, OP1, OP0] = [1, 1, 1]
9x boost mode
VDD1
VDD2
VRS
VOUT
VR
Open
AMPOUTP
C1+
AMPOUT
C1 C2+
VLCD
C2 C3+
VLC1
C3 -
VLC2
C4+
VLC3
C4 C5+
VLC4
C5 -
C6+
C6 C7+
C9+
C9 C1A
C7 C8+
C8 VSS
Figure 3-16. IRS = L, [OP2, OP1, OP0] = [1, 1, 1]
9x boost mode
VRS
VDD1
VDD2
VOUT
AMPOUTP
Rc
VR
Rb'
C1+
C1 C2+
C2 C3+
C3 -
AMPOUT
Ra'
VLCD
VLC1
VLC2
C4+
C4 C5+
VLC3
VLC4
C5 -
C6+
C6 C7+
C7 C8+
C9+
C9 C1A
C8 VSS
Data Sheet S15548EJ1V0DS
43
µPD16686, 16687
Figure 3-17. IRS = H, [OP2, OP1, OP0] = [0, 1, 1]
VRS
VDD1
VDD2
VR
Open
VOUT
AMPOUTP
C1+
C1 C2+
C2 C3+
C3 C4+
Open
C4 C5+
AMPOUT
VLCD
VLC1
VLC2
VLC3
VLC4
C5 C6+
C6 C7+
C7 C8+
C9+
Open
C9 C1A
C8 VSS
Figure 3-18. IRS = L, [OP2, OP1, OP0] = [0, 0, 1]
VRS
Open
VR
Open
VDD1
VDD2
VOUT
C1+
AMPOUTP
C1 C2+
AMPOUT
C2 C3+
C3 C4+
Open
C4 C5+
VLCD
VLC1
VLC2
VLC3
VLC4
C5 C6+
C6 C7+
C7 C8+
C9+
C9 C1A
C8 VSS
44
Data Sheet S15548EJ1V0DS
Open
µPD16686, 16687
Figure 3-19. IRS = L, [OP2, OP1, OP0] = [0, 0, 0]
VDD1
VDD2
VRS
VOUT
AMPOUTP
VR
Open
AMPOUT
C1+
C1 C2+
C2 C3+
C3 -
VLCD
VLC1
VLC2
C4+
Open
C4 C5+
VLC3
VLC4
C5 C6+
C6 C7+
C7 C8+
C9+
C9 C1A
Open
C8 VSS
Data Sheet S15548EJ1V0DS
45
µPD16686, 16687
3.7 LCD Display Drivers
µPD16686, 16687 include both a full dot driver and a static driver icon driver. The full dot driver has a 33-level gray-scale
palette (eight levels of pulse width modulation plus four-frame rate control), from which four levels of gray scale can be
selected and registered as the IC's output gray-scale palette. The icon driver has a gray-scale palette with 32-level pulse
width modulation, from which four levels of gray scale can be selected and registered for use as the IC's output gray-scale
palette.
3.7.1 Full-dot pulse width modulation
The µPD16686, 16687's pulse width modulator divides the normal LCD display signal's segment pulse width by eight and
outputs in synch with the dot output timing based on the ratio (1/8 to 8/8 pulses) for the gray-scale palette that has been
selected via a command.
Figure 3-20. Full-Dot Pulse Width Modulation
1 frame
1 2 3 4 5 6 7 8
126 127 128
1 2 3 4 5 6 7 8
VLCD
VLC1
VLC2
SEG1
VLC3
VLC4
VSS
VLCD
VLC1
VLC2
COM1
VLC3
VLC4
VSS
Enlarged section
1
2
8/8
6/8
4/8
1/8
VLCD
VLC1
VLC2
Caution There is no pulse width modulation for common outputs.
46
Data Sheet S15548EJ1V0DS
3
126 127 128
µPD16686, 16687
The output pulses are output as odd-numbered lines/even-numbered lines or as even-numbered lines/odd-numbered lines,
as shown in Figure 3-21. The pulse rising edge and falling edge combinations for each frame are listed in Table 3-15.
Figure 3-21. Example of Pulse Width Modulated Output
1 frame
1
2
3
4
5
6
7
8
9 10 11 12
126 127128 1
2
3
4
5
6
7
8
VLCD
VLC1
VLC2
VLC3
VLC4
VSS
4/8
1
2
3
8/8
8/8
8/8
3/8
4/8
Data Sheet S15548EJ1V0DS
47
µPD16686, 16687
Table 3-15. Example of Pulse Width Modulated Output (1/3)
Gray-scale
COM
level
1, 2 Frames
3, 4 Frames
5, 6 Frames
7, 8 Frames
SEG Odd
Numbered
SEG Even
Numbered
SEG Odd
Numbered
SEG Even
Numbered
SEG Odd
Numbered
SEG Even
Numbered
SEG Odd
Numbered
SEG Even
Numbered
0
4n+1
4n+2
4n+3
4n+4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
4n+1
4n+2
4n+3
4n+4
↑1
0
0
0
↓1
0
0
0
0
0
0
↑1
0
0
0
↓1
0
↓1
0
0
0
↑1
0
0
0
0
↓1
0
0
0
↑1
0
2
4n+1
↑1
↓1
0
0
↑1
↓1
0
0
4n+2
4n+3
4n+4
↓1
0
0
↑1
0
0
0
↓1
↑1
0
↑1
↓1
↓1
0
0
↑1
0
0
0
↓1
↑1
0
↑1
↓1
4n+1
↑1
↓1
↓1
↑1
↑1
↓1
0
0
4n+2
↓1
↑1
0
0
↓1
↑1
↑1
↓1
4n+3
↑1
↓1
↓1
↑1
0
0
↓1
↑1
4n+4
0
0
↑1
↓1
↓1
↑1
↑1
↓1
4n+1
↑1
↓1
↓1
↑1
↑1
↓1
↓1
↑1
4n+2
↓1
↑1
↑1
↓1
↓1
↑1
↑1
↓1
4n+3
4n+4
↑1
↓1
↓1
↑1
↓1
↑1
↑1
↓1
↑1
↓1
↓1
↑1
↓1
↑1
↑1
↓1
4n+1
4n+2
↑2
↓1
↓2
↑1
↓1
↑1
↑1
↓1
↑1
↓2
↓1
↑2
↓1
↑1
↑1
↓1
4n+3
4n+4
↑1
↓1
↓1
↑1
↓1
↑2
↑1
↓2
↑1
↓1
↓1
↑1
↓2
↑1
↑2
↓1
4n+1
↑2
↓2
↓1
↑1
↑2
↓2
↓1
↑1
4n+2
4n+3
4n+4
↓2
↑1
↓1
↑2
↓1
↑1
↑1
↓2
↑2
↓1
↑2
↓2
↓2
↑1
↓1
↑2
↓1
↑1
↑1
↓2
↑2
↓1
↑2
↓2
7
4n+1
4n+2
4n+3
4n+4
↑2
↓2
↑2
↓1
↓2
↑2
↓2
↑1
↓2
↑1
↓2
↑2
↑2
↓1
↑2
↓2
↑2
↓2
↑1
↓2
↓2
↑2
↓1
↑2
↓1
↑2
↓2
↑2
↑1
↓2
↑2
↓2
8
4n+1
↑2
↓2
↓2
↑2
↑2
↓2
↓2
↑2
4n+2
↓2
↑2
↑2
↓2
↓2
↑2
↑2
↓2
4n+3
4n+4
↑2
↓2
↓2
↑2
↓2
↑2
↑2
↓2
↑2
↓2
↓2
↑2
↓2
↑2
↑2
↓2
9
4n+1
4n+2
4n+3
4n+4
↑3
↓2
↑2
↓2
↓3
↑2
↓2
↑2
↓2
↑2
↓2
↑3
↑2
↓2
↑2
↓3
↑2
↓3
↑2
↓2
↓2
↑3
↓2
↑2
↓2
↑2
↓3
↑2
↑2
↓2
↑3
↓2
10
4n+1
4n+2
4n+3
4n+4
↑3
↓3
↑2
↓2
↓3
↑3
↓2
↑2
↓2
↑2
↓3
↑3
↑2
↓2
↑3
↓3
↑3
↓3
↑2
↓2
↓3
↑3
↓2
↑2
↓2
↑2
↓3
↑3
↑2
↓2
↑3
↓3
3
4
5
6
Remarks 1. n: Integer from 0 to 31.
2. ↑A: Rising edge of pulse during line A output.
3. ↓A: Rising edge of pulse at start of line A output.
4. A: PWM pulse width (A/8)
48
Data Sheet S15548EJ1V0DS
µPD16686, 16687
Table 3-15. Example of Pulse Width Modulated Output (2/3)
Gray-scale
COM
level
11
12
1, 2 Frames
3, 4 Frames
5, 6 Frames
7, 8 Frames
SEG Odd
Numbered
SEG Even
Numbered
SEG Odd
Numbered
SEG Even
Numbered
SEG Odd
Numbered
SEG Even
Numbered
SEG Odd
Numbered
SEG Even
Numbered
4n+1
↑3
↓3
↓3
↑3
↑3
↓3
↓2
↑2
4n+2
↓3
↑3
↑2
↓2
↓3
↑3
↑3
↓3
4n+3
↑3
↓3
↓3
↑3
↑2
↓2
↓3
↑3
4n+4
↓2
↑2
↑3
↓3
↓3
↑3
↑3
↓3
4n+1
↑3
↓3
↓3
↑3
↑3
↓3
↓3
↑3
4n+2
↓3
↑3
↑3
↓3
↓3
↑3
↑3
↓3
4n+3
4n+4
↑3
↓3
↓3
↑3
↓3
↑3
↑3
↓3
↑3
↓3
↓3
↑3
↓3
↑3
↑3
↓3
4n+1
↑4
↓4
↓3
↑3
↑3
↓3
↓3
↑3
4n+2
↓3
↑3
↑3
↓3
↓4
↑4
↑3
↓3
4n+3
4n+4
↑3
↓3
↓3
↑3
↓3
↑4
↑3
↓4
↑3
↓3
↓3
↑3
↓4
↑3
↑4
↓3
4n+1
↑4
↓4
↓3
↑3
↑4
↓4
↓3
↑3
4n+2
↓4
↑4
↑3
↓3
↓4
↑4
↑3
↓3
4n+3
↑3
↓3
↓4
↑4
↑3
↓3
↓4
↑4
4n+4
↓3
↑3
↑4
↓4
↓3
↑3
↑4
↓4
4n+1
↑4
↓4
↓4
↑4
↑4
↓4
↓3
↑3
4n+2
↓4
↑4
↑3
↓3
↓4
↑4
↑4
↓4
4n+3
↑4
↓4
↓4
↑4
↑3
↓3
↓4
↑4
4n+4
↓3
↑3
↑4
↓4
↓4
↑4
↑4
↓4
4n+1
↑4
↓4
↓4
↑4
↑4
↓4
↓4
↑4
4n+2
4n+3
4n+4
↓4
↑4
↓4
↑4
↓4
↑4
↑4
↓4
↑4
↓4
↑4
↓4
↓4
↑4
↓4
↑4
↓4
↑4
↑4
↓4
↑4
↓4
↑4
↓4
4n+1
4n+2
↑5
↓4
↓5
↑4
↓4
↑4
↑4
↓4
↑4
↓5
↓4
↑5
↓4
↑4
↑4
↓4
4n+3
4n+4
↑4
↓4
↓4
↑4
↓4
↑5
↑4
↓5
↑4
↓4
↓4
↑4
↓5
↑4
↑5
↓4
4n+1
4n+2
↑5
↓5
↓5
↑5
↓4
↑4
↑4
↓4
↑5
↓5
↓5
↑5
↓4
↑4
↑4
↓4
4n+3
4n+4
↑4
↓4
↓4
↑4
↓5
↑5
↑5
↓5
↑4
↓4
↓4
↑4
↓5
↑5
↑5
↓5
19
4n+1
4n+2
4n+3
4n+4
↑5
↓5
↑5
↓4
↓5
↑5
↓5
↑4
↓5
↑4
↓5
↑5
↑5
↓4
↑5
↓5
↑5
↓5
↑4
↓5
↓5
↑5
↓4
↑5
↓4
↑5
↓5
↑5
↑4
↓5
↑5
↓5
20
4n+1
4n+2
↑5
↓5
↓5
↑5
↓5
↑5
↑5
↓5
↑5
↓5
↓5
↑5
↓5
↑5
↑5
↓5
4n+3
4n+4
↑5
↓5
↓5
↑5
↓5
↑5
↑5
↓5
↑5
↓5
↓5
↑5
↓5
↑5
↑5
↓5
4n+1
4n+2
4n+3
4n+4
↑6
↓5
↑5
↓5
↓6
↑5
↓5
↑5
↓5
↑5
↓5
↑6
↑5
↓5
↑5
↓6
↑5
↓6
↑5
↓5
↓5
↑6
↓5
↑5
↓5
↑5
↓6
↑5
↑5
↓5
↑6
↓5
13
14
15
16
17
18
21
Remarks 1. n: Integer from 0 to 31.
2. ↑A: Rising edge of pulse during line A output.
3. ↓A: Rising edge of pulse at start of line A output.
4. A: PWM pulse width (A/8)
Data Sheet S15548EJ1V0DS
49
µPD16686, 16687
Table 3-15. Example of Pulse Width Modulated Output (3/3)
Gray-scale
COM
level
22
23
24
25
26
27
28
29
30
31
32
1, 2 Frames
3, 4 Frames
5, 6 Frames
SEG Even
Numbered
SEG Odd
Numbered
SEG Even
Numbered
SEG Odd
Numbered
SEG Even
Numbered
SEG Odd
Numbered
SEG Even
Numbered
4n+1
↑6
↓6
↓5
↑5
↑6
↓6
↓5
↑5
4n+2
4n+3
↓6
↑5
↑6
↓5
↑5
↓6
↓5
↑6
↓6
↑5
↑6
↓5
↑5
↓6
↓5
↑6
4n+4
↓5
↑5
↑6
↓6
↓5
↑5
↑6
↓6
4n+1
↑6
↓6
↓6
↑6
↑6
↓6
↓5
↑5
4n+2
4n+3
4n+4
↓6
↑6
↓5
↑6
↓6
↑5
↑5
↓6
↑6
↓5
↑6
↓6
↓6
↑5
↓6
↑6
↓5
↑6
↑6
↓6
↑6
↓6
↑6
↓6
4n+1
4n+2
4n+3
4n+4
↑6
↓6
↑6
↓6
↓6
↑6
↓6
↑6
↓6
↑6
↓6
↑6
↑6
↓6
↑6
↓6
↑6
↓6
↑6
↓6
↓6
↑6
↓6
↑6
↓6
↑6
↓6
↑6
↑6
↓6
↑6
↓6
4n+1
↑7
↓7
↓6
↑6
↑6
↓6
↓6
↑6
4n+2
4n+3
↓6
↑6
↑6
↓6
↑6
↓6
↓6
↑6
↓7
↑6
↑7
↓6
↑6
↓7
↓6
↑7
4n+4
↓6
↑6
↑7
↓7
↓6
↑6
↑6
↓6
4n+1
↑7
↓7
↓6
↑6
↑7
↓7
↓6
↑6
4n+2
↓7
↑7
↑6
↓6
↓7
↑7
↑6
↓6
4n+3
↑6
↓6
↓7
↑7
↑6
↓6
↓7
↑7
4n+4
↓6
↑6
↑7
↓7
↓6
↑6
↑7
↓7
4n+1
↑7
↓7
↓7
↑7
↑7
↓7
↓6
↑6
4n+2
↓7
↑7
↑6
↓6
↓7
↑7
↑7
↓7
4n+3
↑7
↓7
↓7
↑7
↑6
↓6
↓7
↑7
4n+4
↓6
↑6
↑7
↓7
↓7
↑7
↑7
↓7
4n+1
↑7
↓7
↓7
↑7
↑7
↓7
↓7
↑7
4n+2
↓7
↑7
↑7
↓7
↓7
↑7
↑7
↓7
4n+3
↑7
↓7
↓7
↑7
↑7
↓7
↓7
↑7
4n+4
↓7
↑7
↑7
↓7
↓7
↑7
↑7
↓7
4n+1
4n+2
8
↓7
8
↑7
↓7
↑7
↑7
↓7
↑7
8
↓7
8
↓7
↑7
↑7
↓7
4n+3
↑7
↓7
↓7
↑7
↑7
↓7
8
8
4n+4
↓7
↑7
8
8
↓7
↑7
↑7
↓7
4n+1
8
8
↓7
↑7
8
8
↓7
↑7
4n+2
4n+3
4n+4
8
↑7
↓7
8
↓7
↑7
↑7
8
8
↓7
8
8
8
↑7
↓7
8
↓7
↑7
↑7
8
8
↓7
8
8
4n+1
8
8
8
8
8
8
↓7
↑7
4n+2
4n+3
8
8
8
8
↑7
8
↓7
8
8
↑7
8
↓7
8
8
8
8
4n+4
↓7
↑7
8
8
8
8
8
8
4n+1
8
8
8
8
8
8
8
8
4n+2
4n+3
4n+4
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
Remarks 1. n: Integer from 0 to 31.
2. ↑A: Rising edge of pulse during line A output.
3. ↓A: Rising edge of pulse at start of line A output.
4. A: PWM pulse width (A/8)
50
7, 8 Frames
SEG Odd
Numbered
Data Sheet S15548EJ1V0DS
µPD16686, 16687
3.7.2 Full-dot frame rate control
When combined with pulse width modulation as described in Table 3-15, the µPD16686, 16687's frame speed is based
on 8-frame cycles. The subsampling pattern is output based on the palette stored in the IC.
Full-Dot Gray-Scale Palette (Output Pulse Width: x/8 Pulses)
Gray Scale
Frames
1
2
3
4
5
6
7
8
Level 0
0
0
0
0
0
0
0
0
Level 1
1
1
0
0
0
0
0
0
Level 2
1
1
0
0
1
1
0
0
Level 3
1
1
1
1
1
1
0
0
Level 4
1
1
1
1
1
1
1
1
Level 5
2
2
1
1
1
1
1
1
Level 6
2
2
1
1
2
2
1
1
Level 7
2
2
2
2
2
2
1
1
Level 8
2
2
2
2
2
2
2
2
Level 9
3
3
2
2
2
2
2
2
Level 10
3
3
2
2
3
3
2
2
Level 11
3
3
3
3
3
3
2
2
Level 12
3
3
3
3
3
3
3
3
Level 13
4
4
3
3
3
3
3
3
Level 14
4
4
3
3
4
4
3
3
Level 15
4
4
4
4
4
4
3
3
Level 16
4
4
4
4
4
4
4
4
Level 17
5
5
4
4
4
4
4
4
Level 18
5
5
4
4
5
5
4
4
Level 19
5
5
5
5
5
5
4
4
Level 20
5
5
5
5
5
5
5
5
Level 21
6
6
5
5
5
5
5
5
Level 22
6
6
5
5
6
6
5
5
Level 23
6
6
6
6
6
6
5
5
Level 24
6
6
6
6
6
6
6
6
Level 25
7
7
6
6
6
6
6
6
Level 26
7
7
6
6
7
7
6
6
Level 27
7
7
7
7
7
7
6
6
Level 28
7
7
7
7
7
7
7
7
Level 29
8
8
7
7
7
7
7
7
Level 30
8
8
7
7
8
8
7
7
Level 31
8
8
8
8
8
8
7
7
Level 32
8
8
8
8
8
8
8
8
Comments
OFF data
50%
100%
Remark The gradation in the Comments column are images of the gray-scale level.
Data Sheet S15548EJ1V0DS
51
µPD16686, 16687
3.7.3 Line shift driver
If the frame rate control is performed with equal pulse widths and the same gray scale is displayed on the LCD's full
screen, problems such as flickering may occur on the LCD panel. The µPD16686, 16687 provide a line shift driver as a
countermeasure against such screen image problems.
Using 8 frames per cycle, the segment PWM output timing is shifted among the common outputs, as shown in Table 3-16
below.
Table 3-16. Line Shift Driver
Turn 1
Turn 2
Frame
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
COM1
F1
F2
F3
F4
F5
F6
F7
F8
F1
F2
F3
F4
F5
F6
F7
F8
F1
F2
F3
F4
COM2
F5
F6
F7
F8
F1
F2
F3
F4
F5
F6
F7
F8
F1
F2
F3
F4
F5
F6
F7
F8
COM3
F3
F4
F5
F6
F7
F8
F1
F2
F3
F4
F5
F6
F7
F8
F1
F2
F3
F4
F5
F6
COM4
F7
F8
F1
F2
F3
F4
F5
F6
F7
F8
F1
F2
F3
F4
F5
F6
F7
F8
F1
F2
COM5
F1
F2
F3
F4
F5
F6
F7
F8
F1
F2
F3
F4
F5
F6
F7
F8
F1
F2
F3
F4
COM6
F5
F6
F7
F8
F1
F2
F3
F4
F5
F6
F7
F8
F1
F2
F3
F4
F5
F6
F7
F8
COM7
F3
F4
F5
F6
F7
F8
F1
F2
F3
F4
F5
F6
F7
F8
F1
F2
F3
F4
F5
F6
COM8
F7
F8
F1
F2
F3
F4
F5
F6
F7
F8
F1
F2
F3
F4
F5
F6
F7
F8
F1
F2
COM9
F1
F2
F3
F4
F5
F6
F7
F8
F1
F2
F3
F4
F5
F6
F7
F8
F1
F2
F3
F4
COM10
F5
F6
F7
F8
F1
F2
F3
F4
F5
F6
F7
F8
F1
F2
F3
F4
F5
F6
F7
F8
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Remark Fx: Pulse width modulated output frame (See 3.7.2 Full-dot frame rate control).
Figure 3-22. Full Dot Frame Rate Control
First frame
1
2
3
4
5
Second frame
127
128
1
2
ON
OFF
ON
OFF
ON
OFF
COM1
COM2
COM3
ON
OFF
ON
OFF
COM4
COM5
ON
OFF
ON
COM128 OFF
COM127
SEG1
8
1
5
3
7
1
5
3
7
2
6
SEG2
8
1
5
3
7
1
5
3
7
2
6
SEG3
8
1
5
3
7
1
5
3
7
2
6
SEG4
8
1
5
3
7
1
5
3
7
2
6
SEG5
8
1
5
3
7
1
5
3
7
2
6
Remark Numerical values in the segment data correspond to the gray-scale palette's frame numbers.
52
Data Sheet S15548EJ1V0DS
µPD16686, 16687
Figure 3-23. Line Shift Driver Image
Turn 1, first frame
SEG1
SEG3
SEG2
SEG5
SEG4
SEG7
SEG6
SEG127
SEG8
COM1
F1
COM2
F5
COM3
F3
COM4
F7
COM5
F1
COM126
F5
COM127
F3
COM128
F7
SEG126
SEG128
Turn 1, second frame
SEG1
SEG3
SEG2
SEG5
SEG4
SEG7
SEG6
SEG127
SEG8
COM1
F2
COM2
F6
COM3
F4
COM4
F8
COM5
F2
COM126
F6
COM127
F4
COM128
F8
Data Sheet S15548EJ1V0DS
SEG126
SEG128
53
µPD16686, 16687
3.7.4 Display size settings
The µPD16686, 16687 can be set for any duty value from 1/1 to 1/128. This duty setting can be made via bits DT6 to DT0
in the duty setting register (R5), as shown in Table 3-17.
Table 3-17. Duty Settings
DT6
DT5
DT4
DT3
DT2
DT1
DT0
Duty
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
1
0
1
1
1
1
1
1
1
1
1
1
0
0
0
0
:
1
1
1
1
1
1
0
1
1
1
0
1
1/1
1/2
1/3
1/4
:
1/126
1/127
1/128
3.7.5 Setting of LCD AC driver's inversion cycle and AC driver's inversion position
The µPD16686, 16687 enable any setting to be made for the AC driver's inversion position and the inversion position shift
amount for each displayed frame via settings made in the AC driver inversion cycle register (R6) and the AC driver
inversion position shift register (R7) for normal display mode or via settings made in the partial AC driver inversion cycle
register (R8) and the partial AC driver inversion position shift register (R9) for partial display mode.
In normal display mode, the AC driver inversion cycle can be set for any number of inverted (reverse display) lines listed
in Table 3-18, based on the NID6 to NID0 bit settings in the AC driver inversion cycle register (R6).
If the screen display size has been changed via settings made in the duty setting register (R5), the NIDn values are
automatically overwritten by values from the corresponding DTYn bits.
The shift amount for each displayed frame can be set as shown in Table 3-19 via settings made to bits MSD6 to MSD0 in
the AC driver inversion position shift register (R7).
Table 3-18. Settings of AC Driver Inversion Cycle Register (R6)
54
NID6
NID5
NID4
NID3
NID2
NID1
NID0
Inverted Lines
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
1
0
1
1
1
1
1
1
1
1
1
1
0
0
0
0
:
1
1
1
1
1
1
0
1
1
1
0
1
1
2
3
4
:
126
127
128
Data Sheet S15548EJ1V0DS
µPD16686, 16687
Table 3-19. Settings of AC Driver Inversion Position Shift Register
MSD6
MSD5
MSD4
MSD3
MSD2
MSD1
MSD0
Inversion Position Shift Amount
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
1
0
2
0
0
0
0
0
1
1
3
:
:
1
1
1
1
1
0
1
125
1
1
1
1
1
1
0
126
1
1
1
1
1
1
1
127
In partial display mode, the AC driver inversion cycle can be set for any number of inverted (reverse display) lines listed in
Table 3-20, based on the PID5 to PID0 bit settings in the partial AC driver inversion cycle register (R8).
The shift amount for each displayed frame can be set as shown in Table 3-21 via settings made to bits PSD5 to PSD0 in
the partial AC driver inversion position shift register (R9).
Table 3-20. Settings of Partial AC Driver Inversion Cycle Register (R8)
PID5
PID4
PID3
PID2
PID1
PID0
Inverted Lines
0
0
0
0
0
0
1
0
0
0
0
0
1
2
0
0
0
0
1
0
3
0
0
0
0
1
1
4
:
:
1
0
0
0
1
1
36
1
0
0
1
0
0
37
1
0
0
1
0
1
38
Table 3-21. Setting of Partial AC Driver Inversion Position Shift Register (R9)
PSD5
PSD4
PSD3
PSD2
PSD1
PSD0
Inversion Position Shift Amount
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
1
0
2
0
0
0
0
1
1
3
:
:
1
0
0
0
1
1
35
1
0
0
1
0
0
36
1
0
0
1
0
1
37
Be sure to maintain the following relationship among the display size, AC inversion cycle, and AC inversion position.
Display size (duty) ≥ AC inversion cycle ≥ AC inversion shift amount
Caution Setting a small inversion cycle will cause a reduction in the IC's display drive capacity and an increase
in the current consumption.
NEC therefore recommends determining the inversion cycle after making a thorough evaluation of the
actual LCD panel.
Data Sheet S15548EJ1V0DS
55
µPD16686, 16687
3.8 Display Modes
3.8.1 Partial display mode
The µPD16686, 16687 include a function for outputting a display that uses only part of the LCD panel. The duty setting
for partial display mode can be selected as 1/12, 1/25, or 1/38. Parts of the LCD panel that are outside of the specified
display area are scanned with non-select waveforms. The partial start line address register (R21) is used to select which
part of the LCD panel to use for the partial display. The display area starts from the start line address and includes the
number of lines (12, 25, or 38 lines) that has been specified via the partial display mode setting (R10).
When entering this mode, the booster is set to the boost level number that has been set via the power system control 3
(partial display boost register) (R34) and the display start line is fixed as 00H. In addition, the bias level is automatically
changed to the value that has been set via the partial display mode setting (R10). The relationship between the
oscillator's frequency and the frame frequency in partial mode is also automatically changed.
Figure 3-24 shows the mutual relationship between the partial line start address and the LCD display.
When using the partial display mode, the blinking and reverse display functions can be used in the same way as during
full-dot display mode.
Caution The LCD driver voltage is lower in partial display mode, because the duty is lower than in normal
display mode. There may be restrictions on the useble duty depending on the LCD panel
characteristics.
We recommend determining the partial duty after making a thorough evaluation of the actual LCD panel.
Figure 3-24. Relationship Between Partial Line Start Address and LCD Display
(in Partial Display Mode)
00H
01H
02H
03H
...
1DH
1EH
1FH
Display start line
(00H)
12, 25, or 38 lines
Partial display
start line
Non-display areas
Caution In partial display mode, the display start line setting (R12) command is ignored.
When switching from normal display mode to partial display mode or from partial display mode to normal display mode,
if an electric charge remains in the smoothing capacitor that is connected between the LCD drive voltage pins (VLCD to
VLC4) and the VSS pin, abnormalities such as a brief all-black display may occur during the mode switching operation. To
avoid such abnormalities, we recommend using the following power-on sequence.
56
Data Sheet S15548EJ1V0DS
µPD16686, 16687
Normal display → partial display switch sequence
DISP = 0
R0
Display OFF
R32
High power mode settings
R1
Control register 2: switch DTY flag
↓
HPM1 = 1, HPM0 = 0
↓
Switch display mode
↓
Wait time
700 ms (stabilization time for LCD drive voltage and
booster)Note
↓
HPM1 = X, HPM0 = X
R32
↓
DISP = 1
Note
High power mode settings
(to mode used during normal display)
R0
Display ON, internal operations status
This 700 ms wait time indicates the time for the VLCD level to change from 15 to 6 V and thus varies according to the
panel characteristics and the capacitance value of the boost/smoothing capacitor. Our recommends determining
the wait time after making a thorough evaluation of the actual device.
Partial display → Normal display switch sequence
DISP = 0
R0
Display OFF
R32
Power ON mode settings
R1
Control register 2: switch DTY flag
↓
HPM1 = 1, HPM0 = 1
↓
Switch display mode
↓
Wait time
400 ms (stabilization time for LCD drive voltage and
booster)Note
↓
HPM1 = X, HPM0 = X
R32
↓
DISP = 1
Note
High power mode settings
(to mode used during normal display)
R0
Display ON, internal operations status
This 400 ms wait time indicates the time for the VLCD level to change from 15 V to 6 V and thus varies according to
the panel characteristics and the capacitance value of the boost/smoothing capacitor. We recommends
determining the wait time after making a thorough evaluation of the actual device.
Data Sheet S15548EJ1V0DS
57
µPD16686, 16687
3.8.2 Monochrome (black/white) display
The µPD16686, 16687 provide both a four-level gray scale display mode and a monochrome display mode.
To switch to the monochrome display mode, set GRAY = H. The display RAM for one screen of monochrome display
mode contents is configured as 128 bits x 128 bits (16 x 8 bits). When using these IC's in monochrome display mode, two
screens of data can be written to the display RAM and the two screens can be switched by setting the DSEL bit in the
control register 2 (R1). Screen 1 is displayed on the LCD panel when DSEL = L and screen 2 is displayed when DSEL = H.
When writing data, the display RAM uses the same X address (00H to 0FH) and Y address and the BWW bit value in the
control register 2 (R1) determines which of the two screens the data will be written to: when BWW = L, data is written to
screen 1 and when BWW = H, data is written to screen 2, as shown in Figure 3-25.
When accessing a specified bit, specify both the X address and Y address. The display data in D0 to D7 (sent from the
CPU) corresponds to the SEGx portions of the LCD display, as shown in Figure 3-26. Figure 3-27 shows the relationship
between the display data in monochrome display mode and the page/column addresses.
Figure 3-25. Display RAM Image in Monochrome (Black/White) Mode
00H
0FH
00H
Screen 1
DSEL = L (during display)
BWW = L (during write)
0FH
Screen 2
DSEL = H (during display)
BWW = H (during write)
Figure 3-26. Relationship Between Display Data and LCD Display
Data
7
0
0
0
0
0
0
0
0
6
1
1
1
1
1
1
1
0
5
0
0
1
0
0
0
0
0
4
0
0
0
1
0
0
0
0
3
0
0
0
0
1
0
0
0
2
1
1
1
1
1
1
1
0
1
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
0
7
1
0
0
1
0
0
1
0
6
1
0
0
1
0
0
1
0
5
1
0
0
1
0
0
1
0
4
1
0
0
1
0
0
1
0
3
0
0
0
0
0
0
0
0
2
0
1
1
1
1
1
0
0
1
1
0
0
0
0
0
1
0
0
1
0
0
0
0
0
1
0
Display data
58
LCD display
Data Sheet S15548EJ1V0DS
µPD16686, 16687

Figure 3-27. Relation Between the Display Data and Page/Column Address
D4
D3
D2
D1
0
0
0
0
0
0
0
0
0
1
1
1
D0
0
1
1
00H
01H
Data D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0
0FH
D7 D6 D5 D4 D3 D2 D1 D0
COM
output
Line
address
00H
COM1
01H
02H
03H
04H
05H
06H
07H
08H
09H
0AH
0BH
0CH
0DH
0EH
0FH
10H
11H
12H
13H
14H
15H
16H
17H
18H
19H
1AH
1BH
1CH
1DH
1EH
1FH
20H
21H
22H
23H
24H
25H
COM2
COM3
COM4
COM5
COM6
COM7
COM8
COM9
COM10
COM11
COM12
COM13
COM14
COM15
COM16
COM17
COM18
COM19
COM20
COM21
COM22
COM23
COM24
COM25
COM26
COM27
COM28
COM29
COM30
COM31
COM32
COM33
COM34
COM35
COM36
COM37
COM38
Start
Data Sheet S15548EJ1V0DS
Column
address
ADC
0
1
D0 D0
COM119
COM120
COM121
COM122
COM123
COM124
COM125
COM126
COM127
COM128
LCD
output
SEG128 00 7F
SEG127 01 7E
SEG126 02 7D
SEG125 03 7C
78 07
SEG8
79 06
SEG7
7A 05
SEG6
SEG5
7B 04
7C 03
SEG4
7D 02
SEG3
SEG2
7F 00
7E 01
76H
77H
78H
79H
7AH
7BH
7CH
7DH
7EH
7FH
SEG1
Page address
(in Monochrome Display Mode)
59
µPD16686, 16687
3.8.3 Icon display
The µPD16686, 16687 include 20 segment pins and two common pins (both output the same signal) for displaying icons,
independent of the pins used to display graphics. Icons are static-driven and their contrast can be adjusted at 32 levels
using phase modulation.
The static icon data RAM (R41) that is used to record icon display data contains display data (DIS) and blink data (BRI) in
a 20-bit x 2 configuration, as shown in Table 3-22 (where ADC = 0) and Table 3-23 (where ADC = 1).
Addresses in the static icon data RAM are specified via the static icon address register (R40) and then data is written to
memory.
The icon blink function operates only when the display data setting is 1, the blink data setting is 1, and the IBL setting is
also 1 (R1).
Table 3-22. Static Icon Data RAM (ADC = 0)
Static Icon Output Number (PSEGn)
Address
DIS
BRI
DIS
BRI
DIS
BRI
DIS
BRI
D7
D6
D5
D4
D3
D2
D1
D0
00H
1
2
3
01H
5
6
7
4
8
02H
9
10
11
12
03H
13
14
15
16
04H
17
18
19
20
Table 3-23. Static Icon Data RAM (ADC = 1)
Static Icon Output Number (PSEGn)
Address
DIS
BRI
DIS
BRI
DIS
BRI
DIS
BRI
D7
D6
D5
D4
D3
D2
D1
D0
00H
20
19
18
17
01H
16
15
14
13
02H
12
11
10
9
03H
8
7
6
5
04H
4
3
2
1
Adjustment of contrast is controlled by phase modulation set via the static icon contrast (R42). The pulse width of the ON
signal that is output in static drive mode is divided into 32 levels (1/32 to 32/32 pulse width) and the dot output's timing
changes during output according to the phase modulation ratio recorded in bits ICS4 to ICS0 of the static icon contrast
(R42), as shown in Table 3-24.
Table 3-24. Dot Output Timing Changes
60
ICS4
ICS3
ICS2
ICS1
ICS0
Phase Modulation Ratio
0
0
0
0
0
0
0
0
0
0
1
1
0
1
0
1
1
1
1
1
0
0
0
0
:
1
1
0
1
1
0
0/32
1/32
2/32
3/32
:
29/32
30/32
1
1
1
1
1
31/32
Data Sheet S15548EJ1V0DS
µPD16686, 16687
Figure 3-28. Phase Modulation Driver Waveforms
1 frame
31/32 to 0/32
VDD1
PSEG
VSS
VDD1
PCOM1
VSS
Example of phase modulation amount for displaying 10H
1 frame
16/32
16/32
VDD1
PSEG
ON
ON
VSS
VDD1
PCOM1
VSS
Data Sheet S15548EJ1V0DS
61
µPD16686, 16687
3.9 Reset
In the µPD16686, 16687, a reset is executed when the /RES input is at low level or when a reset command is entered.
The IC is reset to its default settings. These default settings are listed in the table below.
/RES
Reset Command
Control register 1
Register
R0
Enabled (DISP flag only)
Enabled
Control register 2
R1
Enabled (IDIS flag only)
X address register
R3
Disabled
Y address register
R4
Duty setting register
R5
AC driver inversion cycle register
R6
AC driver inversion position shift register
R7
Partial AC driver inversion cycle register
R8
Partial AC driver inversion position shift register
R9
Partial display mode setting
R10
Display memory access register
Note
R11
Disabled
Display start line set
R12
Enabled
Blink X address register
R13
Blink start line address register
R14
Blink end line address register
R15
Blink data memory
R16
Disabled
Inverted X address register
R17
Enabled
Inversion start line address register
R18
Inversion end line address register
R19
Inverted data memory
R20
Disabled
Partial start line address register
R21
Enabled
Gray scale data register 1 (0, 0)
R23
Gray scale data register 2 (0, 1)
R24
Gray scale data register 3 (1, 0)
R25
Gray scale data register 4 (1, 1)
R26
Partial gray scale data register 1 (0, 0)
R27
Partial gray scale data register 2 (0, 1)
R28
Partial gray scale data register 3 (1, 0)
R29
Partial gray scale data register 4 (1, 1)
R30
Power system control 1
R32
Power system control 2
R33
Power system control 3
R34
Electronic volume register
R35
Partial electronic volume register
R36
Boost adjustment register
R37
Static icon address
R40
Static icon data register
R41
Disabled
Static icon contrast
R42
Enabled
RAM test mode setting
R44
Signature read
R45
Disabled
Enabled: Default value is input, Disabled: Default value is not input
Note When using the /RES pin to reset, the contents of memory are not retained. Use the reset command to reset if the
memory contents need to be retained.
Cautions 1. Using the /RES pin to reset initializes the shift clock counter.

2. Always input the reset command as the first command after power application .
62
Data Sheet S15548EJ1V0DS
µPD16686, 16687
4. COMMANDS
The µPD16686, 16687 chips use a combination of RS, /RD (E), and /WR (R,/W) signals to identify data bus signals.
Command interpretation and execution is performed using internal timing that does not depend on any external clock.
Therefore, processing is very fast and there is usually no need to check for a busy status.
The i80 series CPU interface activates read commands using a low pulse input to the /RD pin and activates write
commands using a low pulse input to the /WR pin. The M68 series CPU interface sets read mode using a high level input
to the R,/W pin and sets write mode using a low level input to the same pin. It activates both read and write commands
using a high-level pulse input to the E pin. Thus, the M68 series CPU interface differs from the i80 series CPU interface in
that /RD (E) is at high level during status read and display data read operations, as shown in the following command
descriptions and command table.
Command descriptions using an i80 series CPU interface are shown below.
If the serial interface has been selected, data is input sequentially starting from D7.
Data Sheet S15548EJ1V0DS
63
µPD16686, 16687
4.1 Control Register 1 (R0)
These commands specify the µPD16686, 16687's general operation modes.
RS
E
/RD
R,/W
/WR
D7
D6
D5
D4
D3
D2
D1
D0
1
1
0
RMW
DISP
STBY
BLD
IVD
HALT
ADC
COMR
RMW
0: Address is incremented after both write access and read access.
1: Read/modify/write mode
(Address is incremented only after write access)
DISP
0: Display OFF (All LCD output pins output the VSS level and oscillator and DC/DC converter are operating)
1: Display ON
STBY
0: Normal operation
BLD
The blinking dots are specified via the blink start/end line address registers and data is set to blink data RAM.
1: Internal operation and oscillation are stopped. Display is off.
0: Stop blinking
1: Start blinking
IVD
The number of inverted dots is specified via the inversion start/end line address registers and data is set to
inverted data RAM.
0: Stop inversion
1: Start inversion
HALT
0: Start internal operation
1: Stop internal operation (since different display modes are used, when switching between partial and normal
display modes, the LCD output pins all output the VSS level and the oscillator is operating, but the DC/DC converter
is stopped)
ADCNote
The column address corresponding to the SEG outputs (see Table 4-1) for displaying the contents of the display
data RAM.
COMRNote
This inverts (reverses) the scan direction for common outputs. (See Table 4-2)
Note The RESET command must be executed before changing this flag's setting.

Table 4-1. Relationship Between Display RAM Column Address and SEG Outputs
SEG Output
ADC
(D1)

SEG1
SEG128
0
00H
→
Column addresses
→
7FH
1
7FH
←
Column addresses
←
00H
Table 4-2. Relationship Between Common Scan Circuit and Scan Direction
COM Output
COMR
(D0)
Scan Direction
0
COM1
→
COM128
1
COM128
←
COM1
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
0
0
64
Data Sheet S15548EJ1V0DS
µPD16686, 16687
4.2 Control Register 2 (R1)
These commands specify the µPD16686, 16687's general operation modes.
RS
E
/RD
R,/W
/WR
D7
D6
D5
D4
D3
D2
D1
D0
1
1
0
FDM
IBL
IDIS
DSEL
BWW
GRAY
DTY
INC
FDM
Settings for full screen display mode
0: Normal operation
1: Full screen display (set entire screen to ON) (When using four-level gray scale, gray-scale level 32 is output
for full screen display).
IBL
Static icon blink control, icons with "1" as blink data are blinking.
0: Static icon blink OFF
1: Static icon blink ON
IDIS
0: Static icon display OFF (All static LCD output pins output the VSS level and oscillator and DC/DC converter
are operating)
1: Static icon display ON
DSEL
Selects display screen during monochrome display mode.
0: Screen 1
1: Screen 2
BWW
Selects data write screen during monochrome display mode.
0: Screen 1
1: Screen 2
GRAY Note
0: 4-level gray scale display mode
1: Monochrome display mode
DTY Note
0: Normal display mode (1/1 to 1/128 duty)
1: Partial display mode (1/12, 1/25, or 1/38 duty, 1/5 or 1/6 bias)
INC
0: Increments X address at each access
1: Increments Y address at each access
Note The HALT command must be executed before changing this flag's setting.
Table 4-3. Relationship Between IC's Functions and Display Modes
Item
Normal Display Mode (DTY = 0)
Partial Display Mode (DTY = 1)
Duty
1/1 to 1/128 duty
↔
1/12, 1/25, or 1/38 duty
Booster
×4, ×5, ×6, ×7, ×8, ×9
↔
×2, ×3, ×4
Bias level
1/11, 1/12, 1/10, 1/9, 1/8, 1/7
↔
1/5, 1/6
Gray scale data
Uses levels set to gray scale data registers
(R23 to R26)
↔
Uses levels set to partial gray scale data
registers (R27 to R30)
(1+Rb/Ra)
VLCD regulator resistance
factor
Uses values of VRR2, VRR1, and VRR0 in
power system control register 2 (R33)
↔
Uses values of PVR2, PVR1, and PVR0 in
power system control register 2 (R33)
Electronic volume
Uses value from electronic volume register
(R35)
↔
Uses value from partial electronic volume
register (R36)
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
0
0
Data Sheet S15548EJ1V0DS
65
µPD16686, 16687
4.3 Reset Command (R2)
When this command is input, the IC's registers (R0 to R42) are reset to their initial values.

Always input the reset command as the first command after power application.
RS
D7
D6
D5
D4
D3
D2
D1
D0
1
0
0
0
0
0
0
0
1
4.4 X Address Register (R3)
The X address register specifies the X address in the display RAM accessed by the CPU. This address is automatically
incremented each time the display RAM is accessed (INC = 0, RMW = 0).
RS
D7
D6
D5
D4
D3
D2
D1
D0
1
-
-
-
XA4
XA3
XA2
XA1
XA0
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
-
-
-
0
0
0
0
0
4.5 Y Address Register (R4)
The Y address register specifies the Y address in the display RAM accessed by the CPU. This address is automatically
incremented each time the display RAM is accessed (INC = 1, RMW = 0).
RS
D7
D6
D5
D4
D3
D2
D1
D0
1
-
YA6
YA5
YA4
YA3
YA2
YA1
YA0
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
-
0
0
0
0
0
0
0
66
Data Sheet S15548EJ1V0DS
µPD16686, 16687
4.6 Duty Setting Register (R5)
The display duty can be set to any duty ratio between 1/1 and 1/128, as is shown in Table 4-4.
Before modifying this register, be sure to use the HALT command (control register 1 (R0)) to stop internal operations.
RS
D7
D6
D5
D4
D3
D2
D1
D0
1
-
DT6
DT5
DT4
DT3
DT2
DT1
DT0
Table 4-4. Duty Setting Register (R5) Settings
DT6
DT5
DT4
DT3
DT2
DT1
DT0
Duty
0
0
0
0
0
0
0
1/1
0
0
0
0
0
0
1
1/2
0
0
0
0
0
1
0
1/3
0
0
0
0
0
1
1
1/4
1
1
1
1
1
0
1
1/126
1
1
1
1
1
1
0
1/127
1
1
1
1
1
1
1
1/128
:
:
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
-
1
1
1
1
1
1
1
4.7 AC Driver Inversion Cycle Register (R6)
The AC driver's line position for normal display mode can be set as shown in Table 4-5.
When a DTYn value is changed in the duty setting register (R5), the NIDn value is automatically overwritten by the DTYn
value.
RS
D7
D6
D5
D4
D3
D2
D1
D0
1
-
NID6
NID5
NID4
NID3
NID2
NID1
NID0
Table 4-5. AC Driver Inversion Cycle Register (R6) Settings
NID6
NID5
NID4
NID3
NID2
NID1
NID0
Inversion Line
0
0
0
0
0
0
0
1
0
0
0
0
0
0
1
2
0
0
0
0
0
1
0
3
0
0
0
0
0
1
1
4
:
:
1
1
1
1
1
0
1
126
1
1
1
1
1
1
0
127
1
1
1
1
1
1
1
128
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
-
1
1
1
1
1
1
1
Data Sheet S15548EJ1V0DS
67
µPD16686, 16687
4.8 AC Driver Inversion Position Shift Register (R7)
This shifts the inversion position for each frame in normal display mode by the shift amount shown in Table 4-6.
RS
D7
D6
D5
D4
D3
D2
D1
D0
1
-
MSD6
MSD5
MSD4
MSD3
MSD2
MSD1
MSD0
Table 4-6. AC Driver Inversion Position Shift Register (R7) Settings
MSD5
MSD5
MSD4
MSD3
MSD2
MSD1
MSD0
Inversion Position Shift Amount
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
1
0
2
0
0
0
0
0
1
1
3
:
:
1
1
1
1
1
0
1
125
1
1
1
1
1
1
0
126
1
1
1
1
1
1
1
127
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
-
0
0
0
0
0
0
0
4.9 Partial AC Driver Inversion Cycle Register (R8)
The AC driver's line position can be set as shown in Table 4-7.
When a PDTn value is changed in the partial display mode setting register (R10), the PIDn value is automatically
overwritten by the PDTn value.
RS
D7
D6
D5
D4
D3
D2
D1
D0
1
-
-
PID5
PID4
PID3
PID2
PID1
PID0
Table 4-7. Partial AC Driver Inversion Cycle Register (R8) Settings
PID5
PID4
PID3
PID2
PID1
PID0
Inversion Line
0
0
0
0
0
0
1
0
0
0
0
0
1
2
0
0
0
0
1
0
3
0
0
0
0
1
1
4
:
:
1
0
0
0
1
1
36
1
0
0
1
0
0
37
1
0
0
1
0
1
38
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
-
-
1
0
0
1
0
1
68
Data Sheet S15548EJ1V0DS
µPD16686, 16687
4.10 Partial AC Driver Inversion Position Shift Register (R9)
This shifts the inversion position for each frame by the shift amount shown in Table 4-8.
RS
D7
D6
D5
D4
D3
D2
D1
D0
1
-
-
PSD5
PSD4
PSD3
PSD2
PSD1
PSD0
Table 4-8. Partial AC Driver Inversion Position Shift Register (R9) Settings
PSD5
PSD4
PSD3
PSD2
PSD1
PSD0
Inversion Position Shift Amount
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
1
0
2
0
0
0
0
1
1
3
1
0
0
0
1
1
35
1
0
0
1
0
0
36
1
0
0
1
0
1
37
:
:
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
-
-
-
0
0
0
0
0
4.11 Partial Display Mode Setting (R10)
This command specifies the operation mode to be used in the µPD16686, 16687's partial display mode.
Before modifying this register, be sure to use the HALT command (control register 1 (R0)) to stop internal operations.
RS
D7
D6
D5
D4
D3
D2
D1
D0
1
-
-
-
-
PBIS
-
PDT1
PDT0
PBIS
Sets bias level for partial display mode
0: 1/5 bias
1: 1/6 bias
PDT1, PDT0
PDT1
PDT0
Duty in partial display mode
0
0
1/38 duty
0
1
1/25 duty
1
0
1/12 duty
1
1
Prohibited
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
-
-
-
-
0
-
0
0
Data Sheet S15548EJ1V0DS
69
µPD16686, 16687
4.12 Display Memory Access Register (R11)
The display memory access register is used when accessing the display RAM. When this register is write-accessed, data
is written directly to the display RAM. When this register is read-accessed, data from the display RAM is first latched to this
register before being sent to the bus during the next read operation. Accordingly, one dummy read access is required after
display RAM access has been set.
RS
D7
D6
D5
D4
D3
D2
D1
D0
1
D7
D6
D5
D4
D3
D2
D1
D0
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
-
-
-
-
-
-
-
-
4.13 Display Start Line Set (R12)
Display start line set specifies the top line in the display.
RS
D7
D6
D5
D4
D3
D2
D1
D0
1
-
DSL6
DSL5
DSL4
DSL3
DSL2
DSL1
DSL0
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
-
0
0
0
0
0
0
0
4.14 Blink X Address Register (R13)
The blink X address register specifies the X address of the blink data RAM accessed by the CPU. This address is
automatically incremented each time the blink data RAM is accessed.
RS
D7
D6
D5
D4
D3
D2
D1
D0
1
-
-
-
-
BXA3
BXA2
BXA1
BXA0
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
-
-
-
-
0
0
0
0
70
Data Sheet S15548EJ1V0DS
µPD16686, 16687
4.15 Blink Start Line Address Register (R14)
The blink start line address register specifies the start line address of the display RAM accessed when the CPU uses blink
display mode. The range of blinking lines is determined based on the contents of this register and the blink end line
address register.
RS
D7
D6
D5
D4
D3
D2
D1
D0
Setting
1
-
BSL6
BSL5
BSL4
BSL3
BSL2
BSL1
BSL0
-
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
-
0
0
0
0
0
0
0
4.16 Blink End Line Address Register (R15)
The blink end line address register specifies the end line address of the display RAM accessed when the CPU uses blink
display mode. The range of blinking lines is determined based on the contents of this register and the blink start line
address register.
RS
D7
D6
D5
D4
D3
D2
D1
D0
Setting
1
-
BEL6
BEL5
BEL4
BEL3
BEL2
BEL1
BEL0
-
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
-
0
0
0
0
0
0
0
4.17 Blink Data Memory (R16)
The blink data memory access register is used to access the blink data RAM. When this register is write-accessed, data
is written directly to the blink data RAM.
RS
D7
D6
D5
D4
D3
D2
D1
D0
1
D7
D6
D5
D4
D3
D2
D1
D0
Data
Status
0
Normal
1
Blink
Default settings (initial values set by reset command, all data)
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
0
0
Data Sheet S15548EJ1V0DS
71
µPD16686, 16687
4.18 Inverted X Address Register (R17)
The inverted X address register specifies the X address in the inverted data RAM accessed by the CPU. This address is
incremented each time the inversion RAM is accessed.
RS
D7
D6
D5
D4
D3
D2
D1
D0
1
-
-
-
-
IXA3
IXA2
IXA1
IXA0
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
-
-
-
-
0
0
0
0
4.19 Inversion Start Line Address Register (R18)
The inversion start line address register specifies the start line address in the display RAM accessed by the CPU when
using reverse (inverted) display mode. The range of inverted lines is determined based on the contents of this register and
the inversion end line address register.
RS
D7
D6
D5
D4
D3
D2
D1
D0
1
-
ISL6
ISL5
ISL4
ISL3
ISL2
ISL1
ISL0
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
-
0
0
0
0
0
0
0
4.20 Inversion End Line Address Register (R19)
The inversion end line address register specifies the end line address in the display RAM accessed by the CPU when
using reverse (inverted) display mode. The range of inverted lines is determined based on the contents of this register and
the inversion start line address register.
RS
D7
D6
D5
D4
D3
D2
D1
D0
Setting
1
-
IEL6
IEL5
IEL4
IEL3
IEL2
IEL1
IEL0
-
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
-
0
0
0
0
0
0
0
72
Data Sheet S15548EJ1V0DS
µPD16686, 16687
4.21 Inverted Data Memory (R20)
The inverted data memory access register is used when accessing the inverted data RAM. When this register is
accessed, the data is written directly to the inverted data RAM.
RS
D7
D6
D5
D4
D3
D2
D1
D0
Setting
1
D7
D6
D5
D4
D3
D2
D1
D0
-
Data
Status
0
Normal
1
Inverted
Default settings (initial values set by reset command, all data)
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
0
0
4.22 Partial Start Line Address Register (R21)
The partial start line address register specifies the start line address in the display RAM accessed by the CPU when using
partial display mode. The partial display area is determined as the number of lines specified in the partial display mode
setting register (R10), starting from this start line address.
RS
D7
D6
D5
D4
D3
D2
D1
D0
Setting
1
-
PSL6
PSL5
PSL4
PSL3
PSL2
PSL1
PSL0
-
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
-
0
0
0
0
0
0
0
Data Sheet S15548EJ1V0DS
73
µPD16686, 16687
4.23 Gray Scale Data Registers 1 to 4 (R23, R24, R25, R26)
The gray scale data registers specify the gray scale level when using normal four-level gray scale display mode. Use of
this register optimizes the gray scale display.
Rx
Data
RS
D7
D6
D5
D4
D3
D2
D1
D0
R23
0, 0
1
-
-
GD5
GD4
GD3
GD2
GD1
GD0
R24
0, 1
1
-
-
GD5
GD4
GD3
GD2
GD1
GD0
R25
1, 0
1
-
-
GD5
GD4
GD3
GD2
GD1
GD0
R26
1, 1
1
-
-
GD5
GD4
GD3
GD2
GD1
GD0
D7
D6
D5
D4
D3
D2
D1
D0
Gray scale level
Disable
Disable
0
0
0
0
0
0
Level 0
Disable
Disable
0
0
0
0
0
1
Level 1
Disable
Disable
0
0
0
0
1
0
Level 2
Disable
Disable
0
0
0
0
1
1
Level 3
:
Setting
:
Disable
Disable
0
1
1
1
1
1
Level 31
Disable
Disable
1
0
0
0
0
0
Level 32
Default settings (initial values set by reset command, for all gray scale data registers)
D7
D6
D5
D4
D3
D2
D1
D0
-
-
0
0
0
0
0
0
4.24 Partial Gray Scale Data Registers 1 to 4 (R27, R28, R29, R30)
The partial gray scale data registers specify the gray scale level when using partial four-level gray scale display mode.
Use of this register optimizes the gray scale display.
Rx
Data
RS
D7
D6
D5
D4
D3
D2
D1
D0
Setting
R23
0, 0
1
-
-
PGD5
PGD4
PGD3
PGD2
PGD1
PGD0
-
R24
0, 1
1
-
-
PGD5
PGD4
PGD3
PGD2
PGD1
PGD0
-
R25
1, 0
1
-
-
PGD5
PGD4
PGD3
PGD2
PGD1
PGD0
-
R26
1, 1
1
-
-
PGD5
PGD4
PGD3
PGD2
PGD1
PGD0
-
D7
D6
D5
D4
D3
D2
D1
D0
Gray scale level
Disable
Disable
0
0
0
0
0
0
Level 0
Disable
Disable
0
0
0
0
0
1
Level 1
Disable
Disable
0
0
0
0
1
0
Level 2
Disable
Disable
0
0
0
0
1
1
Level 3
:
:
Disable
Disable
0
1
1
1
1
1
Level 31
Disable
Disable
1
0
0
0
0
0
Level 32
Default settings (initial values set by reset command, for all partial gray scale data registers)
D7
D6
D5
D4
D3
D2
D1
D0
-
-
0
0
0
0
0
0
74
Data Sheet S15548EJ1V0DS
µPD16686, 16687
4.25 Power System Control 1 (R32)
This command sets the µPD16686, 16687's power system mode.
E
R,/W
RS
/RD
/WR
D7
D6
D5
D4
D3
D2
D1
D0
1
1
0
HPM1
HPM0
-
TCS2
TCS1
OP2
OP1
OP0
HPM1, HPM0
These bits set the driver mode as shown in Table 4-9.
TCS1, TCS0
These bits set the value for selecting the VREG voltage's temperature curve, as shown in Table 4-10.
OP2, OP1, OP0
These bits control the booster's ON/OFF status, the voltage regulator (V regulator) and voltage follower (V/F). The
functions controlled via these three bits by the power control setting command are listed in Table 4-11.
Table 4-9. Driver Mode Setting
HPM1
HPM0
Mode Setting
0
0
Normal mode
0
1
Low-power mode
1
0
High-power mode
1
1
Power activation mode
Table 4-10. Selection VREG Voltage's Temperature Curve Value
TCS1
TCS0
Temperature gradient
0
0
−0.09
0
1
−0.11
1
0
−0.12
1
1
external inputs
Unit
VREG (TYP.)
Unit
0.88
%, °C
0.80
V
0.75
-
Table 4-11. Detailed Description of Functions Controlled by Bits of Power System Control 1
Status
Item
1
0
ON
OFF
OP2
Booster control bit
OP1
V regulator control bit
ON
OFF
OP0
Voltage follower control bit
ON
OFF
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
0
0
-
0
0
1
1
1
Data Sheet S15548EJ1V0DS
75
µPD16686, 16687
4.26 Power System Control 2 (R33)
This command sets the µPD16686, 16687's power system mode.
E
R,/W
RS
/RD
/WR
D7
D6
D5
D4
D3
D2
D1
D0
Setting
1
1
0
-
VRR2
VRR1
VRR0
-
PVR2
PVR1
PVR0
-
VRR2, VRR1,
When using normal display mode, power system control 2 (VLCD regulator resistance factor setting command) can
VRR0
be used to change the resistance factor at 8 levels. The three bits in power system control 2 set the values shown
in Table 4-12 as reference values for (1 + Rb/Ra).
PVR2, PVR1,
When using partial display mode, power system control 2 (VLCD regulator resistance factor setting command) can
PVR0
be used to change the resistance factor at 8 levels. The three bits in power system control 2 set the values shown
in Table 4-12 as reference values for (1 + Rb/Ra).
Table 4-12. Reference Values for VLCD Internal Resistance Factor Regulator Register
Register
VRR2
VRR1
VRR0
PVR2
PVR1
PVR0
0
0
0
5
0
0
1
8
0
1
0
12
0
1
1
13
1
0
0
16
1
0
1
19
1
1
0
21
1
1
1
24
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
-
0
0
0
-
0
0
0
76
Data Sheet S15548EJ1V0DS
1+Rb/Ra
µPD16686, 16687
4.27 Power System Control 3 (R34)
This command sets the power system mode, including the bias setting for the µPD16686, 16687's normal display mode
and the number of boost levels for partial display mode.
RS
D7
D6
D5
D4
D3
D2
D1
D0
Setting
1
BIS2
BIS1
BIS0
FBS2
FBS1
FBS0
BST1
BST0
-
BIS2, BIS1,
These three flags select the bias ratio as shown below.
Note
BIS0
BIS2
BIS1
BIS0
0
0
0
Boost level
1/12 bias
0
0
1
1/11 bias
0
1
0
1/10 bias
0
1
1
1/9 bias
1
0
0
1/8 bias
1
0
1
1/7 bias
1
1
0
Prohibited
1
1
1
Prohibited
When partial display mode is set, the bias ratio set by the partial mode setting is automatically selected.
FBS2, FBS1,
The number of boost levels in booster for normal display mode is selected as shown below.
FBS0Note
BST1, BST0
FBS2
FBS1
FBS0
Boost level
0
0
0
x4
0
0
1
x5
0
1
0
x6
0
1
1
x7
1
0
0
x8
1
0
1
x9
1
1
0
Prohibited
1
1
1
Prohibited
The number of boost levels in the booster for partial display mode is selected as shown below.
BST1
BST0
Boost level
0
0
x2
0
1
x3
1
0
x4
1
1
Prohibited
Note Be sure to execute the HALT command before changing these flag settings.
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
0
0
Data Sheet S15548EJ1V0DS
77
µPD16686, 16687
4.28 Electronic Volume Register (R35)
The electronic volume register specifies the electronic volume value for adjusting the contrast when using normal display
mode. Any value among 256 steps can be selected.
RS
D7
D6
D5
D4
D3
D2
D1
D0
Setting
1
EV7
EV6
EV5
EV4
EV3
EV2
EV1
EV0
-
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
0
0
4.29 Partial Electronic Volume Register (R36)
The partial electronic volume register specifies the electronic volume value for adjusting the contrast when using partial
display mode. Any value among 256 steps can be selected.
RS
D7
D6
D5
D4
D3
D2
D1
D0
Setting
1
PEV7
PEV6
PEV5
PEV4
PEV3
PEV2
PEV1
PEV0
-
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
0
0
4.30 Boost Adjustment Register (R37)
The voltage (range: 1/8 VDD2 to 7/8 VDD2) set to this register is applied to the boost level set for the booster.
RS
D7
D6
D5
D4
D3
D2
D1
D0
Setting
1
-
-
-
-
-
DDC2
DDC1
DDC0
-
Table 4-13. Boost Adjustment Register (R37) Settings
DDC2
DDC1
DDC0
Boost Adjustment Voltage
0
0
0
Regulator Circuit Stopped
0
0
1
1/8 VDD2
0
1
0
2/8 VDD2
0
1
1
3/8 VDD2
1
0
0
4/8 VDD2
1
0
1
5/8 VDD2
1
1
0
6/8 VDD2
1
1
1
7/8 VDD2
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
-
-
-
-
-
0
0
0
78
Data Sheet S15548EJ1V0DS
µPD16686, 16687
4.31 Static Icon Address (R40)
The static icon address specifies the address in the static icon data RAM accessed by the CPU.
This address is automatically incremented each time the static icon data RAM is accessed.
RS
D7
D6
D5
D4
D3
D2
D1
D0
1
-
-
-
-
-
SIA2
SIA1
SIA0
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
-
-
-
-
-
0
0
0
4.32 Static Icon Data Register (R41)
The static icon data register is used when accessing the static icon data RAM. When this register is write-accessed, the
data is written directly to the static icon data RAM.
RS
D7
D6
D5
D4
D3
D2
D1
D0
1
D7
D6
D5
D4
D3
D2
D1
D0
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
-
-
-
-
-
-
-
-
4.33 Static Icon Contrast (R42)
The static icon contrast adjusts the contrast of static icons using phase modulation.
The pulse width of the ON signal that is output in static drive mode is divided into 32 levels (1/32 to 32/32 pulse width) and
the dot output's timing changes during output according to the phase modulation ratio recorded in bits ICS4 to ICS0 of the
static icon contrast (R42), as is shown in Table 4-14.

RS
D7
D6
D5
D4
D3
D2
D1
D0
1
-
-
-
0
ICS3
ICS2
ICS1
ICS0
Table 4-14. Static Icon Contrast (R42) Setting
ICS4
ICS3
ICS2
ICS1
ICS0
Phase Modulation Ratio
0
0
0
0
0
0/32
0
0
0
0
1
1/32
0
0
0
1
0
2/32
0
0
0
1
1
3/32
:
:
1
1
1
0
1
29/32
1
1
1
1
0
30/32
1
1
1
1
1
31/32
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
-
-
-
-
0
0
0
0
Data Sheet S15548EJ1V0DS
79
µPD16686, 16687
4.34 RAM Test Mode Setting (R44)
The RAM test mode setting register directly writes the data for each type of display mode to the display RAM, as shown in
Table 4-15.
RS
D7
D6
D5
D4
D3
D2
D1
D0
1
-
-
-
-
RTS3
RTS2
RTS1
RTS0
Table 4-15. RAM Test Mode Setting (R44)
RTS3
RTS2
RTS1
RTS0
Write Data
0
0
0
0
Normal operation
0
1
0
0
Displays list of gray scales
1
0
0
0
all 00/pixel
1
0
0
1
all 11/pixel
1
0
1
0
Checker pattern: 00/11
1
0
1
1
Checker pattern: 11/00
1
1
0
0
Checker pattern: 01/10
1
1
0
1
Checker pattern: 10/01
1
1
1
0
Vertical striped pattern: 00/11
1
1
1
1
Horizontal striped pattern: 00/11
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
-
-
-
-
0
0
0
0
4.35 Signature Read (R45)
This commnad is used to read the IC signature set via the SIGIN1 and SIGIN2 pins. This is a read-only register.
RS
D7
D6
D5
D4
D3
D2
D1
D0
1
-
-
-
-
-
-
SIGIN2
SIGIN1
Default settings (initial values set by reset command)
D7
D6
D5
D4
D3
D2
D1
D0
-
-
-
-
-
-
-
-
80
Data Sheet S15548EJ1V0DS
µPD16686, 16687
5. LIST OF µPD16686, 16687 REGISTERS
CS RS 5
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Remark
Index Register
4 3 2 1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
Register Name
R/W
IR
R0
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
R12
R13
R14
R15
R16
R17
R18
R19
R20
R21
R22
R23
R24
R25
R26
R27
R28
R29
R30
R31
R32
R33
R34
R35
R36
R37
R38
R39
R40
R41
R42
R43
R44
R45
R46
R47
R48
R49
R50
R51
R52
R53
R54
R55
R56
R57
R58
R59
R60
R61
R62
R63
Index Register
Control register 1
Control register 2
Reset command
X address register
Y address register
Duty setting register
AC driver inversion cycle register
AC driver inversion position shift register
Partial AC driver inversion cycle register
Partial AC driver inversion potision shift register
Partial display mode setting
Display memory access register
Display start line set
Blink X address register
Blink start line address register
Blink end line address register
Blink data memory
Inverted X address register
Inversion start line address register
Inversion end line address register
Inverted data memory
Partial start line address register
7
6
5
Data Bits
4
3
2
1
0
W
IR5
IR4 IR3
IR2
IR1
IR0
R/W RMW DISP STBY BLD IVD HALT ADC COMR
R/W FDM IBL IDIS DSEL BWW GRAY DTY INC
CRES
W
R/W
XA4 XA3 XA2 XA1 XA0
R/W
YA6 YA5 YA4 YA3 YA2 YA1 YA0
R/W
DT6 DT5 DT4 DT3 DT2 DT1 DT0
R/W
NID6 NID5 NID4 NID3 NID2 NID1 NID0
W
MSD6 MSD5 MSD4 MSD3 MSD2 MSD1 MSD0
W
PID4 PID3 PID2 PID1 PID0
W
PSD4 PSD3 PSD2 PSD1 PSD0
R/W
PBIS
PDT1 PDT0
R/W
D7
D6
D5
D4
D3
D2
D1
D0
W
DSL6 DSL5 DSL4 DSL3 DSL2 DSL1 DSL0
R/W
BXA3 BXA2 BXA1 BXA0
R/W
BSL6 BSL5 BSL4 BSL3 BSL2 BSL1 BSL0
R/W
BEL6 BEL5 BEL4 BEL3 BEL2 BEL1 BEL0
R/W
D7
D6
D5
D4
D3
D2
D1
D0
R/W
IXA3 IXA2 IXA1 IXA0
R/W
ISL6 ISL5 ISL4 ISL3 ISL2 ISL1 ISL0
R/W
IEL6 IEL5 IEL4 IEL3 IEL2 IEL1 IEL0
R/W
D7
D6
D5
D4
D3
D2
D1
D0
W
PSL6 PSL5 PSL4 PSL3 PSL2 PSL1 PSL0
Gray scale data register 1 (0, 0)
Gray scale data register 2 (0, 1)
Gray scale data register 3 (1, 0)
Gray scale data register 4 (1, 1)
Patial gray scale data register 1 (0, 0)
Patial gray scale data register 2 (0, 1)
Patial gray scale data register 3 (1, 0)
Patial gray scale data register 4 (1, 1)
W
W
W
W
W
W
W
W
Power system control 1
Power system control 2
Power system control 3
Electronic volume register
Partial electronic volume register
Boost adjustment register
W
W
W
W
W
W
Static icon address
Static icon data register
Static icon contrast
W
R/W
W
RAM test mode setting
Signature read
W
R
HPM1 HPM0
VRR2
BIS2 BIS1
EV7 EV6
PEV7 PEV6
D7
D6
GD5
GD5
GD5
GD5
PGD5
PGD5
PGD5
PGD5
GD4
GD4
GD4
GD4
PGD4
PGD4
PGD4
PGD4
GD3
GD3
GD3
GD3
PGD3
PGD3
PGD3
PGD3
GD2
GD2
GD2
GD2
PGD2
PGD2
PGD2
PGD2
GD1
GD1
GD1
GD1
PGD1
PGD1
PGD1
PGD1
GD0
GD0
GD0
GD0
PGD0
PGD0
PGD0
PGD0
VRR1
BIS0
EV5
PEV5
TCS1
VRR0
FBS2
EV4
PEV4
TSC0 OP2
PVR2
FBS1 FBS0
EV3 EV2
PEV3 PEV2
DDC2
OP1
PVR1
BST1
EV1
PEV1
DDC1
OP0
PVR0
BST0
EV0
PEV0
DDC0
D5
SIA2 SIA1 SIA0
D4
D3
D2
D1
D0
ICS4 ICS3 ICS2 ICS1 ICS0
RTS3 RTS2 RTS1 RTS0
SIG2 SIG1
: Not to use these registers.
Data Sheet S15548EJ1V0DS
81
µPD16686, 16687
6. POWER SUPPLY SEQUENCE
The µPD16686, 16687 includes power supply circuitry, such as a booster and a voltage follower. When a reset is
performed using the /RES pin, the reset function is restricted so as to prevent operation faults that may occur due to noise
effects, etc.
When electric charge remains in the smoothing capacitor that is connected between the VSS pin and the voltage pins
related to the LCD driver (VLCD to VLC4), abnormalities such as a brief all-black display screen may occur when the power is
switched ON or OFF. The following power-on sequence is recommended as a means to avoid such abnormalities when
switching the power ON or OFF.
6.1 Power ON Sequence (When Using On-Chip Power Supply, Power Supply ON → Display ON)
Turn power ON while /RES pin's status is L
↓
Power supply stabilization
↓
/RES pin = H
↓
Command reset
↓
Control register 1
DISP = 0, HALT = 1
↓

R2
Wait at least 50 µs befor command input
Register reset
R0
Display OFF, internal operations stopped
IC functions set via command input
• Control register 1
(DISP = 0, HALT = 1 status is retained)
• Control register 2
• Power control register 1
(HPM1, HPM0 = 1, 1)
• Power control registers 2, 3
• Electronic volume register
• Partial electronic volume register
Specification of power activation mode
• Boost adjustment register
↓
User-specified settings via command input
Function settings for gray scale data, etc.
↓
Initialization complete
↓
Control register 1
DISP = 0, HALT = 0
↓
R0
LCD display screen settings
• Set start line for display
• Write screen data, etc. + wait time
↓
Power control register 1
(Mode when HPM1, HPM0 (1, 1))
↓
Control register 1
DISP = 1, HALT = 0
Note
Display OFF, internal operations started
After internal operations are started, wait at least 400 ms
before turning on the LCD display.Note
Cancels V/F mode for power activation
R0
Display ON, internal operation start mode
This 400 ms wait time varies according to the panel characteristics and the capacitance value of the
boost/smoothing capacitor. We recommend determining the wait time after making a thorough evaluation of the
actual device (refer to 6.5 VOUT, VLCD Voltage Sequence (Power ON → Power OFF)).
82
Data Sheet S15548EJ1V0DS
µPD16686, 16687
6.2 Power OFF Sequence (When Using On-Chip Power Supply)
Operation mode
↓
DISP = 0, HALT = 0
R0
Display OFF, internal operation start mode
R32
Sets high power mode
R35
[EV7, EV6, EV5, EV4, EV3, EV2, EV1, EV0]
= [0, 0, 0, 0, 0, 0, 0, 0]
R36
[PEV7, PEV6, PEV5, PEV4, PEV3, PEV2, PEV1, PEV0]
= [0, 0, 0, 0, 0, 0, 0, 0]
↓
HPM1 = 1, HPM0 = 0
↓
Set electronic volume register
↓
Set partial electronic volume register
Wait at least 1200 ms before power OFF.Note
↓
Power supply OFF
Note
This 1200 ms wait time varies according to the panel characteristics and the capacitance value of the
boost/smoothing capacitor. NEC recommends determining the wait time after making a thorough evaluation of the
actual device (refer to 6.5 VOUT, VLCD Voltage Sequence (power ON → power OFF)).
6.3 Power ON Sequence (When Using External Driver Power Supply, Power ON → Display ON)
VDD1, VDD2 power ON, VOUT = Hi-Z
Logic power ON when /RES pin = L
↓
Power supply stabilization
↓

/RES pin = H
↓
Command reset
R2
Wait at least 50 µs befor command input
Register reset
R0
Display OFF, internal operations stopped
↓
DISP = 0, HALT = 1
↓
Power system control register 1 (R32) :
[OP2, OP1, OP0] = [0 ,0 ,X]
Initialization via command input (user-specified)
Selection of IC functions, etc.
↓
DISP = 0, HALT = 0
R0
Display OFF, internal operations started
↓
VOUT power supply ON
External LCD driver power supply ON
↓
Stabilization of external LCD driver power supply
↓
DISP = 1, HALT = 0
R0
Display ON, internal operations started
Data Sheet S15548EJ1V0DS
83
µPD16686, 16687
6.4 Power Supply OFF Sequence (When Using External Driver Power Supply)
Operation mode
↓
DISP = 0, HALT = 0
R0
Display OFF, internal operation start mode
↓
VOUT = Hi-Z
External driver power supply OFF
↓
DISP = 0, HALT = 1
R0
Display OFF, internal operations stopped
↓
Logic power supply OFF
84
VDD1, VDD2, power supply OFF
Data Sheet S15548EJ1V0DS
µPD16686, 16687
6.5 VOUT, VLCD Voltage Sequence (Power ON → Power OFF)
0 VDD
VOUT
/RES pin = 0
Power ON
/RES pin = 1
DISP = 0, HALT = 1
Default settings
HPM = 3
HALT = 0
400 ms
Select HPM = 0 to 2
DISP = 1
Normal display
DISP = 0
HPM = 2
DTY = 1
700 ms
VLCD = 15V 6V
Select HPM = 0 to 2
DISP = 1
Partial display
DISP = 0
HPM = 3
DTY = 0
400 ms
Select HPM = 0 to 2
DISP = 1
Normal display
DISP = 0
HPM = 2
EV = 0
1200 ms
Power OFF
Dotted line: VOUT
Solid line: VLCD
Conditions:
VDD: VDD1 = VDD2 = 3.0 V
Boost levels: x6 (in normal display mode), x3 (in partial display mode)
Capacitors: VLCn pin to Cn+/− pin = 1 µF,
AMPOUT pin, AMPOUTP pin, VRS pin = 0.1 µF
Caution Connect a 0.1 µF capacitor to the AMPOUT, and AMPOUTP pins.
Data Sheet S15548EJ1V0DS
85
µPD16686, 16687
7. USE OF RAM TEST MODE
The µPD16686, 16687 has a test mode for writing nine types of screen data to display RAM. When using the test mode,
be sure to execute via the sequence shown below. If executing the test mode by some other sequence,
abnormalities may appear in the screen display.
Operation mode
↓
Control register 1
DISP = 0, STBY = 1
R0
Display OFF, set to standby
R44
Select RAM write data
R0
Display OFF, cancel standby
↓
Set RAM test mode
↓
Control register 1
DISP = 0, STBY = 0
↓
After internal operations are started, wait at least 1 s
before turning on the LCD display.Note
Wait time
↓
Control register 1
DISP = 1
R0
Display ON
↓
Settings complete
Note
This 1 s wait time varies according to the panel characteristics and the capacitance value of the boost/smoothing
capacitor. NEC recommends determining the wait time after making a thorough evaluation of the actual device.
86
Data Sheet S15548EJ1V0DS
µPD16686, 16687
8. USE OF STANDBY/HALT MODE
The µPD16686, 16687 has a standby mode for reducing current consumption, and a HALT mode for switching display
mode. Electrical circuits as a DC/DC converter are stopped in standby/HALT mode.
When using the standby/HALT mode, be sure to execute via the sequence shown below. If executing the test mode by
some other sequence, abnormalities may appear in the screen display.
Operation mode
↓
Control register 1
DISP = 0, STBY = 0, HALT = 0
R0
Display OFF
R0
Display OFF, set to standby (HALT)
R32
Reverse sequence to normal operation
R0
Display OFF, cancel standby (HALT)
↓
Control register 1
DISP = 0, STBY = 1(or HALT = 1)
↓
Standby mode
↓
Power control register 1
(HPM1, HPM0 = 1, 1)
↓
Control register 1
DISP = 0, STBY = 0(or HALT = 0)
↓
After internal operations are started, wait at least 400 ms
before turning on the LCD display.Note
Wait time
↓
Power control register 1
(Set except HPM1, HPM0 =1, 1)
R32
Set except HPM1, HPM0 = 1,1 (power activation) mode
↓
Control register 1
DISP = 1, HALT = 0
Note
Display ON, internal operation start mode
This 400 ms wait time varies according to the panel characteristics and the capacitance value of the
boost/smoothing capacitor. We recommends determining the wait time after making a thorough evaluation of the
actual device.
Data Sheet S15548EJ1V0DS
87
µPD16686, 16687
9. ELECTRICAL SPECIFICATIONS
Absolute Maximum Ratings (TA = +25°C, VSS = 0 V)
Parameter
Symbol
Ratings
Unit
Logic system supply voltage
VDD1
−0.3 to +4.0
V
Booster supply voltage
VDD2
−0.3 to +4.0
V
Driver supply voltage
VOUT
−0.3 to +20.0
V
Driver reference supply input voltage
VLCD, VLC1 to VLC4
−0.3 to VOUT+0.3
V
Logic system input voltage
VIN1
−0.3 to VDD1+0.3
V
Logic system output voltage
VOUT1
−0.3 to VDD1+0.3
V
Logic system input/output voltage
VI/O1
−0.3 to VDD1+0.3
V
Driver system input voltage
VIN2
−0.3 to VOUT+0.3
V
Driver system output voltage
VOUT2
−0.3 to VOUT+0.3
V
Operating ambient temperature
TA
−40 to +85
°C
Storage temperature
Tstg
−55 to +125
°C
Caution Product quality may suffer if the absolute maximum rating is exceeded even momentarily for any
parameter. That is, the absolute maximum ratings are rated values at which the product is on the verge
of suffering physical damage, and therefore the product must be used under conditions that ensure
that the absolute maximum ratings are not exceeded.
Recommended Operating Range
Parameter
Symbol
MIN.
TYP.
MAX.
Unit
Logic system supply voltage
VDD1
1.7
3.6
V
Booster supply voltage
VDD2Note1
2.4
3.6
V
Note2
Driver supply voltage
VOUT
5.5
18.0
V
Logic system input voltage
VIN
0
VDD1
V
Driver system supply voltage
VLCD, VLC1 to VLC4 Note2
0
VOUT
V
VOUT − 0.5
V
Maximum setting for LCD driver voltage
Note3
VLCD
Notes 1. VDD1 must be less than or equal to VDD2
2. This item is the recommended parameter when the LCD has an external driver.
3. This item is the recommended parameter when the LCD is driven by an on-chip power supply circuit.
Cautions 1. When using an external LCD driver, be sure to maintain these relations:
VSS < VLC4 < VLC3 < VLC2 < VLC1 < VLCD ≤ VOUT.
2. Maintain the relations shown in 6. POWER SUPPLY SEQUENCE when turning the power on or off.
3. When using an external resister (when not using an on-chip resister for VLCD adjustment), maintain supply of
a voltage between 1.0 V and the VDD1 voltage to the VR and VRS pins.
88
Data Sheet S15548EJ1V0DS
µPD16686, 16687
Electrical Characteristics 1
(Unless Otherwise Specified, TA = −40 to +85°°C, VDD1 = 1.7 to 3.6 V, VDD2 = 2.4 to 3.6 V)
Parameter
Symbol
Conditions
MIN.
TYP.Note1
MAX.
0.8 VDD1
Unit
Input voltage, high
VIH
V
Input voltage, low
VIL
Input current, high
IIH1
Except for D7 (SI), D6 (SCL) and D5 to D0
Input current, low
IIL1
Except for D7 (SI), D6 (SCL) and D5 to D0
Output voltage, high
VOH
IOUT = −1 mA except OSCOUT
Output voltage, low
VOL
IOUT = 1 mA except OSCOUT
0.5
V
Leakage current, high
ILOH
D7 (SI), D6 (SCL) and D5 to D0,
10
µA
−10
µA
4
kΩ
4
kΩ
0.2 VDD1
V
1
µA
1
µA
VDD1−0.5
V
VIN/OUT = VDD1
Leakage current, low
ILOL
D7 (SI), D6 (SCL) and D5 to D0,
VIN/OUT = VSS
Common output ON resistance RCOM
VLCn → COMn, VOUT = 15 V, VLCD = 13 V,
1/10 bias, |IO| = 50 µA
Segment output ON resistance RSEG
VLCn → SEGn, VOUT = 15 V, VLCD = 13 V,
1/10 bias, |IO| = 50 µA
Driver voltage (boost voltage)
VOUT
In x5 boost mode, VDD = 3.0 V,
13.8
V
16.6
V
Checker pattern display
In x6 boost mode, VDD = 3.0 V,
Checker pattern display
Oscillation frequency
fOSCNote2
VDD1 = 3.0 V, TA = 25°C, 1/38 duty,
36
kHz
10.6
kHz
in B/W mode, R = 750 kΩ
VDD1 = 3.0 V, TA = 25°C, 1/38 duty,
in B/W mode, R = 3 MΩ
Notes 1. TYP. values are reference values when TA = 25°C.
2. This time varies according to the parasitic capacitance of the wiring capacitance, etc. We therefore recommend
determining the oscillation resister's value after making a thorough evaluation of the actual device.
Data Sheet S15548EJ1V0DS
89
µPD16686, 16687
Electrical Characteristics 2
(Unless Otherwise Specified, TA = −40 to +85°°C)
Parameter
Current consumption
Symbol
IDD11
(normal mode)
Conditions
Frame frequency = 70 Hz,
MIN.
TYP.Note
MAX.
Unit
180
290
µA
250
390
µA
300
460
µA
380
560
µA
135
220
µA
210
320
µA
95
140
µA
105
160
µA
10
µA
35
µA
B/W all display OFF data output,
1/128 duty, VDD1 = VDD2 = 3.0 V,
in x5 boost mode, VLCD = 13 V
Frame frequency = 70 Hz,
B/W checker pattern display data output,
1/128 duty, VDD1 = VDD2 = 3.0 V,
in x5 boost mode, VLCD = 13 V
Current consumption
IDD12
(high-power mode)
Frame frequency = 70 Hz,
B/W all display OFF data output,
1/128 duty, VDD1 = VDD2 = 3.0 V,
in x5 boost mode, VLCD = 13 V
Frame frequency = 70 Hz,
B/W checker pattern display data output,
1/128 duty, VDD1 = VDD2 = 3.0 V,
in x5 boost mode,VLCD = 13 V
Current consumption
IDD13
(low-power mode)
Frame frequency = 70 Hz,
B/W all display OFF data output,
1/128 duty, VDD1 = VDD2 = 3.0 V,
in x5 boost mode, VLCD = 13 V
Frame frequency = 70 Hz,
B/W checker pattern display data output,
1/128 duty, VDD1 = VDD2 = 3.0 V,
in x5 boost mode, VLCD = 13 V
Current consumption
IDD21
(partial display mode)
Frame frequency = 70 Hz,
B/W all display OFF data output,
1/38 duty, VDD1 = VDD2 = 3.0 V,
in x3 boost mode, VLCD = 7.0 V
Frame frequency = 70 Hz,
B/W checker pattern display data output,
1/38 duty, VDD1 = VDD2 = 3.0 V,
VLCD = 7.0 V, in x3 boost mode
Current consumption
IDD22
VDD1 = VDD2 = 3.0 V
(standby mode)
Current consumption
(display icon)
IDD23
Icon frame frequency = 125 Hz,
B/W all display OFF data output,
VDD1 = 3.0 V
Note TYP. values are reference values when TA = 25°C.
90
Data Sheet S15548EJ1V0DS
18
µPD16686, 16687
Required Timing Conditions (Unless Otherwise Specified, TA = −30 to +85°°C)
(1) i80 CPU interface
RS
tAS8
tf
tr
tAH8
/CS1
(CS2=1)
tCYC8
tCCLW, tCCLR
/WR, /RD
tCCHR, tCCHW
tDS8
tDH8
D0 - D7
(Write)
tOH8
tACC8
D0 - D7
(Read)
When VDD1 = 1.7 V to 2.0 V
Parameter
Symbol
Conditions
Address hold time
tAH8
RS
Address setup time
tAS8
RS
System cycle time
tCYC8
MIN.
TYP.Note
MAX.
0
Unit
ns
0
ns
1000
ns
Control low-level pulse width (/WR) tCCLW
/WR
160
ns
Control low-level pulse width (/RD)
tCCLR
/RD
430
ns
Control high-level pulse width (/WR) tCCHW
/WR
160
ns
Control high-level pulse width (/RD) tCCHR
/RD
160
ns
Data setup time
tDS8
D0 to D7
160
ns
Data hold time
tDH8
D0 to D7
0
/RD access time
tACC8
D0 to D7, CL = 100 pF
0
470
ns
Output disable time
tOH8
D0 to D7, CL = 5 pF, R = 3 kΩ
0
170
ns
MAX.
Unit
ns
Note TYP. values are reference values when TA = 25°C.
When VDD1 = 2.0 to 2.5 V
Parameter
Symbol
Conditions
MIN.
TYP.Note
Address hold time
tAH8
RS
0
Address setup time
tAS8
RS
0
ns
ns
System cycle time
tCYC8
600
ns
Control low-level pulse width (/WR) tCCLW
/WR
120
ns
Control low-level pulse width (/RD)
tCCLR
/RD
240
ns
Control high-level pulse width (/WR) tCCHW
/WR
120
ns
Control high-level pulse width (/RD) tCCHR
/RD
120
ns
Data setup time
tDS8
D0 to D7
120
ns
Data hold time
tDH8
D0 to D7
0
/RD access time
tACC8
D0 to D7, CL = 100 pF
0
280
ns
Output disable time
tOH8
D0 to D7, CL = 5 pF, R = 3 kΩ
0
170
ns
ns
Note TYP. values are reference values when TA = 25°C.
Data Sheet S15548EJ1V0DS
91
µPD16686, 16687
When VDD1 = 2.5 to 3.6 V
Parameter
Symbol
Conditions
MIN.
TYP.Note
MAX.
Unit
Address hold time
tAH8
RS
0
Address setup time
tAS8
RS
0
ns
ns
System cycle time
tCYC8
250
ns
Control low-level pulse width (/WR) tCCLW
/WR
60
ns
Control low-level pulse width (/RD)
tCCLR
/RD
120
ns
Control high-level pulse width (/WR) tCCHW
/WR
60
ns
Control high-level pulse width (/RD) tCCHR
/RD
60
ns
Data setup time
tDS8
D0 to D7
60
ns
Data hold time
tDH8
D0 to D7
0
/RD access time
tACC8
D0 to D7, CL = 100 pF
0
140
ns
Output disable time
tOH8
D0 to D5, CL = 5 pF, R = 3 kΩ
0
70
ns
Note TYP. values are reference values when TA = 25°C.
Cautions 1. The rise and fall times of input signal (tr and tf) are rated as 15 ns or less.
2. All timing is rated based on 20% or 80% of VDD1.
92
Data Sheet S15548EJ1V0DS
ns
µPD16686, 16687
(2) M68 CPU interface
RS
R,/W
tAS6
tf
tAH6
tr
/CS1
(CS2 = H)
tCYC6
tEWHR, tEWHW
E
tEWLR, tEWLW
tDS6
tDH6
D 0 - D7
(Write)
tACC6
tOH6
D0 - D 7
(Read)
When VDD1 = 1.7 to 2.0 V
Parameter
Symbol
Conditions
MIN.
TYP.Note
MAX.
Unit
Address hold time
tAH6
RS
0
ns
Address setup time
tAS6
RS
0
ns
System cycle time
tCYC6
1000
ns
Data setup time
tDS6
D0 to D7
160
ns
Data hold time
tDH6
D0 to D7
0
Access time
tACC6
D0 to D7, CL = 100 pF
0
470
ns
0
170
ns
Output disable time
Enable high pulse width
Enable low pulse width
ns
tOH6
D0 to D7, CL = 5 pF, R = 3 kΩ
Read
tEWHR
E
430
ns
Write
tEWHW
E
160
ns
Read
tEWLR
E
160
ns
Write
tEWLW
E
160
ns
Note TYP. values are reference values when TA = 25°C.
When VDD1 = 2.0 to 2.5 V
Parameter
Symbol
Conditions
MIN.
TYP.Note
MAX.
tAH6
RS
Address setup time
tAS6
RS
System cycle time
tCYC6
Data setup time
tDS6
D0 to D7
Data hold time
tDH6
D0 to D7
0
Access time
tACC6
D0 to D7, CL = 100 pF
0
280
ns
0
170
ns
Output disable time
0
Unit
Address hold time
ns
0
ns
600
ns
120
ns
ns
tOH6
D0 to D7, CL = 5 pF, R = 3 kΩ
tEWHR
E
240
ns
Write
tEWHW
E
120
ns
Read
tEWLR
E
120
ns
tEWLW
E
120
ns
Enable high pulse width
Read
Enable low pulse width
Write
Note TYP. values are reference values when TA = 25°C.
Data Sheet S15548EJ1V0DS
93
µPD16686, 16687
When VDD1 = 2.5 to 3.6 V
Parameter
Symbol
Conditions
MIN.
TYP.Note
MAX.
Unit
Address hold time
tAH6
RS
0
Address setup time
tAS6
RS
0
ns
ns
System cycle time
tCYC6
250
ns
Data setup time
tDS6
D0 to D7
60
ns
Data hold time
tDH6
D0 to D7
0
ns
Access time
tACC6
D0 to D7, CL = 100 pF
0
140
ns
Output disable time
tOH6
D0 to D7, CL = 5 pF, R = 3 kΩ
0
70
ns
Read
tEWHR
E
120
ns
Write
tEWHW
E
60
ns
Read
tEWLR
E
60
ns
Write
tEWLW
E
60
ns
Enable high pulse width
Enable low pulse width
Note TYP. values are reference values when TA = 25°C.
Cautions 1. The rise and fall times of input signals (tr and tf) are rated at 15 ns or less. When using a fast system
cycle time, the rated value range is either (tr + tf) ≤ (tCYC6 − tEWLW − tEWHW) or (tr + tf) ≤ (tCYC6 − tEWLW −
tEWHW).
2. All timing is rated based on 20% or 80% of VDD1.
94
Data Sheet S15548EJ1V0DS
µPD16686, 16687
(3) Serial interface
tCSS
tCSH
/CS1
(CS2=1)
tSAS
tSAH
RS
tSCYC
tSLW
SCL
tf
tSHW
tr
tSDS
tSDH
SI
When VDD1 = 1.7 to 2.5 V
Parameter
Symbol
Conditions
MIN.
TYP.Note
MAX.
Unit
Serial clock cycle
tSCYC
SCL
250
ns
SCL high-level pulse width
tSHW
SCL
100
ns
SCL low-level pulse width
tSLW
SCL
100
ns
Address hold time
tSAH
RS
150
ns
Address setup time
tSAS
RS
150
ns
Data setup time
tSDS
SI
100
ns
Data hold time
tSDH
SI
100
ns
CS - SCL time
tCSS
CS
150
ns
tCSH
CS
150
ns
Note TYP. values are reference values when TA = 25°C.
When VDD1 = 2.5 to 3.6 V
Parameter
Symbol
Conditions
MIN.
TYP.
Note
MAX.
Unit
Serial clock cycle
tSCYC
SCL
150
ns
SCL high-level pulse width
tSHW
SCL
60
ns
SCL low-level pulse width
tSLW
SCL
60
ns
Address hold time
tSAH
RS
90
ns
Address setup time
tSAS
RS
90
ns
Data setup time
tSDS
SI
60
ns
Data hold time
tSDH
SI
60
ns
CS - SCL time
tCSS
CS
90
ns
tCSH
CS
90
ns
Note TYP. values are reference values when TA = 25°C.
Cautions 1. The rise and fall times of input signal (tr and tf) are rated as 15 ns or less.
2. All timing is rated based on 20% or 80% of VDD1.
Data Sheet S15548EJ1V0DS
95
µPD16686, 16687
(4) Common
Parameter
Clock input 1
Symbol
fN
Conditions
MIN.
TYP.Note
MAX.
Unit
36
150
kHz
72
150
kHz
10.6
50
kHz
21.3
50
kHz
MAX.
Unit
50
µs
When using OSCIN1, external clock, and
on-chip divider, 1/128 duty, B/W mode
When using OSCIN1, external clock, and
on-chip divider, 1/128 duty,
four-level gray scale mode
Clock input 2
fP
When using OSCIN2, external clock for
partial display mode, but not using on-chip
divider, B/W mode
When using OSCIN2, external clock for
partial display mode, but not using on-chip
divider, four-level gray scale mode
Note TYP. values are reference values when frame frequency = 70 Hz.
Cautions 1. The rise and fall times of input signal (tr and tf) are rated as 15 ns or less.
2. All timing is rated based on 20% or 80% of VDD1.
(a) Reset timing
tRW
/RES
tR
Internal
status
During reset
Reset complete
When VDD1 = 1.7 to 2.5 V
Parameter
Symbol
Reset time
tR
Reset low pulse width
tRW
Conditions
/RES
MIN.
TYP.Note
µs
50
Note TYP. values are reference values when TA = 25°C.
When VDD1 = 2.5 to 3.6 V
Parameter
Symbol
Reset time
tR
Reset low pulse width
tRW
Conditions
/RES
50
Note TYP. values are reference values when TA = 25°C.
Caution All timing is rated based on 20% or 80% of VDD1.
96
MIN.
Data Sheet S15548EJ1V0DS
TYP.Note
MAX.
Unit
50
µs
µs
µPD16686, 16687
10. CPU INTERFACE (REFERENCE EXAMPLE)
The µPD16686, 16687 can be connected to either an i80 series CPU or an M68 series CPU. Also, if a serial interface
connection is used, the number of signal lines can be reduced.
If several µPD16686, 16687 chips are used, the display area can be enlarged. When using this method, use the chip
select signal to select and access the ICs.
(1) M68 series CPU
VCC
RS
A0
VDD1
A1 to A15
Decoder
C86
/CS1
D0 to D7
D0 to D7
CPU
µPD16686, 16687
VIMA
E
E
R, /W
R, /W
/RES
/RES
PSX
VSS
GND
/RESET
(2) i80 series CPU
VCC
RS
A0
VDD1
A1 to A7
CPU
Decoder
C86
/CS1
µPD16686, 16687
/IORQ
D0 to D7
D0 to D7
/RD
/RD
/WR
/WR
/RES
/RES
PSX
VSS
GND
/RESET
(3) When using serial interface
A0
A1 to A7
RS
Decoder
Open
CPU
VDD1
C86
/CS1
D0 to D5
Port1
SI(D7)
/Port2
SCL(D6)
H or L
µPD16686, 16687
VCC
PSX
/RES
/RES
VSS
GND
/RESET
Data Sheet S15548EJ1V0DS
97
µPD16686, 16687
[MEMO]
98
Data Sheet S15548EJ1V0DS
µPD16686, 16687
NOTES FOR CMOS DEVICES
1
PRECAUTION AGAINST ESD FOR SEMICONDUCTORS
Note:
Strong electric field, when exposed to a MOS device, can cause destruction of the gate oxide and
ultimately degrade the device operation. Steps must be taken to stop generation of static electricity
as much as possible, and quickly dissipate it once, when it has occurred. Environmental control
must be adequate. When it is dry, humidifier should be used. It is recommended to avoid using
insulators that easily build static electricity. Semiconductor devices must be stored and transported
in an anti-static container, static shielding bag or conductive material. All test and measurement
tools including work bench and floor should be grounded. The operator should be grounded using
wrist strap. Semiconductor devices must not be touched with bare hands. Similar precautions need
to be taken for PW boards with semiconductor devices on it.
2
HANDLING OF UNUSED INPUT PINS FOR CMOS
Note:
No connection for CMOS device inputs can be cause of malfunction. If no connection is provided
to the input pins, it is possible that an internal input level may be generated due to noise, etc., hence
causing malfunction. CMOS devices behave differently than Bipolar or NMOS devices. Input levels
of CMOS devices must be fixed high or low by using a pull-up or pull-down circuitry. Each unused
pin should be connected to V DD or GND with a resistor, if it is considered to have a possibility of
being an output pin. All handling related to the unused pins must be judged device by device and
related specifications governing the devices.
3
STATUS BEFORE INITIALIZATION OF MOS DEVICES
Note:
Power-on does not necessarily define initial status of MOS device. Production process of MOS
does not define the initial operation status of the device. Immediately after the power source is
turned ON, the devices with reset function have not yet been initialized. Hence, power-on does
not guarantee out-pin levels, I/O settings or contents of registers. Device is not initialized until the
reset signal is received. Reset operation must be executed immediately after power-on for devices
having reset function.
Data Sheet S15548EJ1V0DS
99