SANYO LC75879PT

Ordering number : ENA1687
CMOS IC
LC75879PT
1/4, 1/3-Duty General-Purpose
LCD Display Driver
Overview
The LC75879PT is the 1/4 duty and 1/3 duty general-purpose microprocessor-controlled LCD driver that can be used in
applications such as frequency display in products with electronic tuning.In addition to being able to drive up to 272
segments directly, the LC75879PT can also control up to 8 general-purpose output ports. Because it has the PWM output
of a maximum of 3 ch, the brightness control of the LED backlight of RGB can be done. Incorporation of an oscillation
circuit helps to reduce the number of external resistors and capacitors required.
Features
• Support for 1/4-duty 1/3-bias or 1/3-duty 1/3-bias drive techniques under serial data control.
When 1/4-duty: Capable of driving up to 272 segments
When 1/3-duty: Capable of driving up to 207 segments
• Serial data input supports CCB format communication with the system controller (Support 3.3V and 5V operation).
• Serial data control of the power-saving mode based backup function and the all segments forced off function.
• Serial data control of switching between the segment output port and general-purpose output portfunction.
(Support for up to 8 general-purpose output ports)
• Support for the PWM output function of a maximum of 3ch (It can output from the general-purpose output port).
• Support for clock output function of 1ch (It can output from the general-purpose output port).
• Serial data control of the frame frequency of the common and segment output waveforms.
• Serial data control of switching between the internal oscillator operating mode and external clock operating mode.
• High generality, since display data is displayed directly without the intervention of a decoder circuit.
• Built-in display contrast adjustment circuit.
• The INH pin allows the display to be forced to the off state.
• Incorporation of an oscillator circuit (Incorporation of resistor and capacitor for an oscillation).
•
•
CCB is a registered trademark of SANYO Electric Co., Ltd.
CCB is SANYO Semiconductor's original bus format. All bus addresses are managed by SANYO
Semiconductor for this format.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer' s products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer' s products or
equipment.
51910HKIM 20100420-S00013 No.A1687-1/35
LC75879PT
Specifications
Absolute Maximum Ratings at Ta = 25°C, VSS = 0V
Parameter
Maximum supply voltage
Input voltage
Output voltage
Output current
Allowable power dissipation
Symbol
VDD max
Conditions
Ratings
VDD
Unit
-0.3 to +6.8
V
VIN1
CE, CL, DI, INH
VIN2
OSCI, VDD1, VDD2
-0.3 to VDD+0.3
VOUT
S1 to S69, COM1 to COM4, P1 to P8
-0.3 to VDD+0.3
V
IOUT1
S1 to S68
300
μA
IOUT2
COM1 to COM4, S69
3
IOUT3
P1 to P8
5
Pd max
Ta=85°C
-0.3 to +6.8
200
V
mA
mW
Operating temperature
Topr
-40 to +85
°C
Storage temperature
Tstg
-55 to +125
°C
Allowable Operating Ranges at Ta = -40 to +85°C, VSS = 0V
Parameter
Symbol
Ratings
Conditions
min
typ
Unit
max
Supply voltage
VDD
VDD
Input voltage
VDD1
VDD1
2/3VDD0
VDD0
*1
VDD2
VDD2
1/3VDD0
VDD0
Input high level voltage
VIH1
CE, CL, DI, INH
0.4VDD
6.3
VIH2
OSCI: External clock operating mode
0.4VDD
VDD
VIL1
CE, CL, DI, INH
0
0.2VDD
VIL2
OSCI: External clock operating mode
0
0.2VDD
fCK
OSCI: External clock operating mode
Input low level voltage
External clock
operating frequency
External clock duty cycle
4.5
[Figure4]
DCK
OSCI: External clock operating mode
[Figure4]
6.3
V
V
V
V
10
300
600
kHz
30
50
70
%
Data setup time
tds
CL, DI
[Figure2], [Figure3]
160
ns
Data hold time
tdh
CL, DI
[Figure2], [Figure3]
160
ns
CE wait time
tcp
CE, CL
[Figure2], [Figure3]
160
ns
CE setup time
tcs
CE, CL
[Figure2], [Figure3]
160
ns
CE hold time
tch
CE, CL
[Figure2], [Figure3]
160
ns
High level clock pulse width
tφH
CL
[Figure2], [Figure3]
160
ns
Low level clock pulse width
tφL
CL
[Figure2], [Figure3]
160
tr
CE, CL, DI
[Figure2], [Figure3]
160
ns
Fall time
tf
CE, CL, DI
[Figure2], [Figure3]
160
ns
INH switching time
tc
INH, CE
[Figure5], [Figure6]
Rise time
[Figure7], [Figure8]
10
ns
μs
Note : *1. VDD0=0.70VDD to VDD
No.A1687-2/35
LC75879PT
Electrical Characteristics for the Allowable Operating Ranges
Parameter
Symbol
Pin
Conditions
Ratings
min
typ
Unit
max
Hysteresis
VH
CE, CL, DI, INH
Input high level current
IIH1
CE, CL, DI, INH
VI=6.3V
5.0
IIH2
OSCI
VI=VDD: External
clock operating mode
5.0
IIL1
CE, CL, DI, INH
VI=0V
-5.0
IIL2
OSCI
VI=0V: External
clock operating mode
-5.0
S1 to S69
IO=-20μA
VDD0-0.9
VDD0-0.9
Input low level current
Output high level
voltage *1
VOH1
0.03VDD
V
μA
VOH2
COM1 to COM4
IO=-100μA
VOH3
P1 to P8
IO=-1mA
Output low level
VOL1
S1 to S69
IO=20μA
0.9
voltage
VOL2
COM1 to COM4
IO=100μA
0.9
VOL3
P1 to P8
IO=1mA
0.9
VMID1
S1 to S69
1/3 bias IO=±20μA
Output middle level
2/3VDD0
Current drain
+0.9
1/3VDD0
S1 to S69
1/3 bias IO=±20μA
1/3VDD0
-0.9
+0.9
VMID3
COM1 to COM4
1/3 bias IO=±100μA
2/3VDD0
2/3VDD0
-0.9
+0.9
VMID4
COM1 to COM4
1/3 bias IO=±100μA
1/3VDD0
1/3VDD0
-0.9
+0.9
Internal
Internal oscillator
oscillator circuit
operating mode
IDD1
VDD
Power-saving mode
IDD2
VDD
VDD=6.3V
Output open
fosc
240
V
2/3VDD0
-0.9
VMID2
*2
Oscillator frequency
V
VDD-0.9
voltage
*1
μA
300
360
V
kHz
100
1000
Internal oscillator
2000
operating mode
IDD3
VDD
μA
VDD=6.3V
Output open
External clock
1000
operating mode
2000
fCK=300kHz
VIH2=0.5VDD VIL2=0.1VDD
Note: *1. VDD0=0.70VDD to VDD
Note: *2. Excluding the bias voltage generation divider resistors built in the VDD1 and VDD2. (See Figure 1.)
VDD
CONTRAST
ADJUSTER
VDD0
VDD1
To the common and segment drivers
VDD2
VSS
Except these resistors.
[Figure 1]
No.A1687-3/35
LC75879PT
≈
1. When CL is stopped at the low level
VIH1
VIL1
≈
CE
tφL
tf
tcp
VIH1
DI
tch
tcs
≈ ≈
tr
≈ ≈
CL
≈
≈
tφH
VIH1
50%
VIL1
VIL1
tdh
tds
[Figure 2]
2. When CL is stopped at the high level
≈
VIH1
CE
≈
VIL1
tφH
VIH1
50%
VIL1
tr
tcp
≈ ≈
VIH1
VIL1
DI
tch
tcs
≈ ≈
tf
≈
CL
≈
tφL
tdh
tds
[Figure 3]
3. OSCI pin clock timing in external clock operating mode
tCKH
OSCI
VIH2
50%
VIL2
tCKL
fCK =
1
[kHz]
tCKH+ tCKL
tCKH
×100[%]
DCK=
tCKH+ tCKL
[Figure 4]
No.A1687-4/35
LC75879PT
Package Dimensions
unit : mm (typ)
3290
14.0
60
0.5
12.0
41
40
80
21
1
14.0
12.0
61
20
0.125
0.2
0.5
0.1
1.2max
(1.0)
(1.25)
SANYO : TQFP80J(12X12)
S62
S61
S60
S59
S58
S57
S56
S55
S54
S53
S52
S51
S50
S49
S48
S47
S46
S45
S44
S43
Pin Assignment
60
61
50
41
40
LC75879PT
70
30
(TQFP80J)
80
1
10
21
20
P3/S3
P4/S4
P5/S5
P6/S6
P7/S7
P8/S8
S9
S10
S11
S12
S13
S14
S15
S16
S17
S18
S19
S20
S21
S22
S63
S64
S65
S66
COM1
COM2
COM3
S67/COM4
S68
VDD
VDD1
VDD2
VSS
S69/OSCI
INH
CE
CL
DI
P1/S1
P2/S2
S42
S41
S40
S39
S38
S37
S36
S35
S34
S33
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
Top view
No.A1687-5/35
LC75879PT
COMMON
DRIVER
S1/P1
S2/P2
S8/P8
S9
S66
S68
COM4/S67
COM2
COM3
COM1
Block Diagram
SEGMENT DRIVER & LATCH
INH
CLOCK
GENERATOR
S69/OSCI
CONTROL
REGISTER
VDD
CONTRAST
ADJUSTER
SHIFT REGISTER
VDD0
VDD1
CCB INTERFACE
VDD2
CE
CL
DI
VSS
No.A1687-6/35
LC75879PT
Pin Functions
Handling
Pin
Pin No.
Function
Active
I/O
when
unused
S1/P1 to
79, 80,
Segment outputs for displaying the display data transferred by serial data
S8/P8
1 to 6
input. The S1/P1 to S8/P8 pins can be used as general-purpose output
S9 to S66
7 to 64
ports under serial data control.
S68
69
COM1 to COM3
65 to 67
COM4/S67
68
The frame frequency is fo[Hz].
S69/OSCI
74
Segment output. This pin can also be used as the external clock input pin
Common driver outputs
-
O
OPEN
-
O
OPEN
-
I/O
OPEN
H
I
GND
The COM4/S67 pin can be used as a segment output in 1/3 duty.
when the external clock operating mode is selected by control data.
CE
76
Serial data transfer inputs. Must be connected to the controller.
CE: Chip enable
CL
77
CL: Synchronization clock
I
DI: Transfer data
DI
78
INH
75
Display off control input
•INH=low(VSS)….Display forced off S1/P1 to S8/P8=low (VSS)
-
I
L
I
GND
-
I
OPEN
OPEN
(These pins are forcibly set to the general-purpose output
port function and held at the VSS level.)
S9 to S66,S68=low(VSS)
COM1 to COM3=low(VSS)
COM4/S67=low(VSS)
S69/OSCI=low(VSS)
(This pin is forcibly set to the segment output port function
and held at the VSS level.)
Stops the internal oscillator. Inhibits external clock input.
Display contrast adjustment circuit stopped.
•INH=high(VDD)…Display on
Enables the internal oscillator circuit.
(Internal oscillator operating mode)
Enables external clock input.
(External clock operating mode)
Display contrast adjustment circuit operation is enabled.
However, serial data transfer is possible when the display is forced off.
VDD1
71
Used to apply the LCD drive 2/3 bias voltage externally.
VDD2
72
Used to apply the LCD drive 1/3 bias voltage externally.
-
I
VDD
70
Power supply pin. A power voltage of 4.5 to 6.3V must be applied to this pin.
-
-
-
VSS
73
Ground pin. Must be connected to ground.
-
-
-
No.A1687-7/35
LC75879PT
Serial Data Input
1. 1/4 duty
(1) When CL is stopped at the low level
CL
DI 1
0
1
0
0
0
1
0
D1
D2
D60 D61 D62 D63 D64 D65 D66 D67 D68 0
0
0 PS10 PS11 PS2 PS3 PS4 EXF DN OC P0 P1 P2 P3 DT SC BU 0
0
B0 B1 B2 B3 A0 A1 A2 A3
Display data
68 bits
Control data
18 bits
DD
2bits
∼
0
1
0
0
0
1
0
D69 D70
D128 D129 D130 D131 D132 D133 D134 D135 D136 0
0
0
0
0
0
0
0 PF0 PF1 PF2 PF3 FC0 FC1 FC2 CT0 CT1 CT2 0
1
Display data
68 bits
Control data
18 bits
DD
2bits
∼ ∼ ∼
∼
∼
CCB address
8 bits
1
0
1
0
0
0
1
0
D137 D138
D196 D197 D198 D199 D200 0
0
0
0 W10 W11 W12 W13 W14 W15 W20 W21 W22 W23 W24 W25 W30 W31 W32 W33 W34 W35 1
0
B0 B1 B2 B3 A0 A1 A2 A3
Display data
64 bits
DD
2bits
Control data
22 bits
∼
CCB address
8 bits
∼ ∼ ∼
∼ ∼ ∼
1
B0 B1 B2 B3 A0 A1 A2 A3
1
0
1
0
0
0
1
0
D201 D202
D260 D261 D262 D263 D264 D265 D266 D267 D268 D269 D270 D271 D272 0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
B0 B1 B2 B3 A0 A1 A2 A3
CCB address
8 bits
Display data
72 bits
Fixed data
14 bits
DD
2bits
Note: DD is the direction data.
No.A1687-8/35
∼ ∼ ∼
∼ ∼ ∼
∼
CCB address
8 bits
∼ ∼ ∼
∼
CE
LC75879PT
(2) When CL is stopped at the high level
CL
DI 1
0
1
0
0
0
1
0
D1 D2
D60 D61 D62 D63 D64 D65 D66 D67 D68 0
0
0 PS10 PS11 PS2 PS3 PS4 EXF DN OC P0 P1 P2 P3 DT SC BU 0
0
B0 B1 B2 B3 A0 A1 A2 A3
Display data
68bits
Control data
18 bits
DD
2bits
∼ ∼
0
1
0
0
0
1
0
D69 D70
D128 D129 D130 D131 D132 D133 D134 D135 D136 0
0
0
0
0
0
0
0 PF0 PF1 PF2 PF3 FC0 FC1 FC2 CT0 CT1 CT2 0
1
CCB address
8 bits
Display data
68 bits
Control data
18 bits
∼ ∼
∼ ∼
∼ ∼
DD
2bits
1
0
1
0
0
0
1
0
D137 D138
D196 D197 D198 D199 D200 0
0
0
0 W10 W11 W12 W13 W14 W15 W20 W21 W22 W23 W24 W25 W30 W31 W32 W33 W34 W35 1
0
B0 B1 B2 B3 A0 A1 A2 A3
Display data
64 bits
Control data
22 bits
DD
2bits
∼ ∼
CCB address
8 bits
∼ ∼
∼ ∼
1
B0 B1 B2 B3 A0 A1 A2 A3
1
0
1
0
0
0
1
0
D201 D202
D260 D261 D262 D263 D264 D265 D266 D267 D268 D269 D270 D271 D272 0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
B0 B1 B2 B3 A0 A1 A2 A3
CCB address
8 bits
Display data
72 bits
Fixed data
14 bits
DD
2bits
Note: DD is the direction data
• CCB address ……………….. “45H”
• D1 to D272 ………………… Display data
• PS10, PS11, PS2 to PS4 …. .. General-purpose output port (P1 to P4) function setting control data
• EXF ………………………… External clock operating frequency setting control data
• DN …………………………. S68 pin and S69/OSCI pin state setting control data
• OC …………………………. Internal oscillator operating mode/external clock operating mode switching control data
• P0 to P3 …………………….. Segment output port/general-purpose output port switching control data
• DT ………………………….. 1/4-duty 1/3-bias drive or 1/3-duty 1/3-bias drive switching control data
• SC ………………………..… Segment on/off control data
• BU ………………………..… Normal mode/power-saving mode control data
• PF0 to PF3 ………………… PWM output waveform frame frequency setting control data
• FC0 to FC2 ………………… Common/segment output waveform frame frequency setting control data
• CT0 to CT2 ………………… Display contrast setting control data
• W10 to W15, W20 to W25, ... PWM data of the PWM output
W30 to W35
No.A1687-9/35
∼ ∼
∼ ∼
∼ ∼
CCB address
8 bits
∼ ∼
∼ ∼
CE
LC75879PT
2. 1/3 duty
(1) When CL is stopped at the low level
CL
DI 1
0
1
0
0
0
1
0
D1
D2
D60 D61 D62 D63 D64 D65 D66 D67 D68 D69 0
0 PS10 PS11 PS2 PS3 PS4 EXF DN OC P0 P1 P2 P3 DT SC BU 0
0
B0 B1 B2 B3 A0 A1 A2 A3
Display data
69 bits
Control data
17 bits
DD
2bits
∼
1
0
1
0
0
0
1
0
D70 D71
D129 D130 D131 D132 D133 D134 D135 D136 D137 D138 D139 D140 D141 0
0
0
0 PF0 PF1 PF2 PF3 FC0 FC1 FC2 CT0 CT1 CT2 0
1
B0 B1 B2 B3 A0 A1 A2 A3
Display data
72 bits
Control data
14 bits
DD
2bits
∼ ∼ ∼
∼
CCB address
8 bits
1
0
1
0
0
0
1
0
D142 D143
D201 D202 D203 D204 D205 D206 D207 0
0 W10 W11 W12 W13 W14 W15 W20 W21 W22 W23 W24 W25 W30 W31 W32 W33 W34 W35 1
0
B0 B1 B2 B3 A0 A1 A2 A3
CCB address
8 bits
Display data
66 bits
Control data
20 bits
DD
2bits
Note: DD is the direction data.
No.A1687-10/35
∼ ∼ ∼
∼ ∼ ∼
∼
CCB address
8 bits
∼ ∼ ∼
∼
CE
LC75879PT
(2) When CL is stopped at the low level
CL
DI 1
0
1
0
0
0
1
0
D1 D2
D60 D61 D62 D63 D64 D65 D66 D67 D68 D69 0
0 PS10 PS11 PS2 PS3 PS4 EXF DN OC P0 P1 P2 P3 DT SC BU 0
0
B0 B1 B2 B3 A0 A1 A2 A3
Display data
69 bits
Control data
17 bits
DD
2bits
1
0
1
0
0
0
1
0
D70 D71
D129 D130 D131 D132 D133 D134 D135 D136 D137 D138 D139 D140 D141 0
0
0
0 PF0 PF1 PF2 PF3 FC0 FC1 FC2 CT0 CT1 CT2 0
1
B0 B1 B2 B3 A0 A1 A2 A3
Display data
72 bits
Control data
14 bits
DD
2bits
∼ ∼
∼ ∼
CCB address
8 bits
1
0
1
0
0
0
1
0
D142 D143
D201 D202 D203 D204 D205 D206 D207 0
0 W10 W11 W12 W13 W14 W15 W20 W21 W22 W23 W24 W25 W30 W31 W32 W33 W34 W35 1
0
B0 B1 B2 B3 A0 A1 A2 A3
CCB address
8 bits
Note: DD is the direction data.
• CCB address ………………..
• D1 to D207 ………………....
• PS10, PS11, PS2 to PS4 …....
• EXF ………………………...
• DN ………………………….
• OC ………………………….
• P0 to P3 …………………….
• DT ………………………….
• SC …………………………..
• BU ………………………….
• PF0 to PF3 ………………….
• FC0 to FC2 …………………
• CT0 to CT2 …………………
• W10 to W15, W20 to W25, ...
W30 to W35
Display data
66 bits
Control data
20 bits
DD
2bits
“45H”
Display data
General-purpose output port (P1 to P4) function setting control data
External clock operating frequency setting control data
S68 pin and S69/OSCI pin state setting control data
Internal oscillator operating mode/external clock operating mode switching control data
Segment output port/general-purpose output port switching control data
1/4-duty 1/3-bias drive or 1/3-duty 1/3-bias drive switching control data
Segment on/off control data
Normal mode/power-saving mode control data
PWM output waveform frame frequency setting control data
Common/segment output waveform frame frequency setting control data
Display contrast setting control data
PWM data of the PWM output
No.A1687-11/35
∼ ∼
∼ ∼
∼ ∼
∼ ∼
CCB address
8 bits
∼ ∼
∼ ∼
CE
LC75879PT
3. 1/4 duty (Simple mode transfer)
(1) When CL is stopped at the low level
CL
1
0
1
0
0
0
1
0
D1
D2
D55 D56 D57 D58 D59 D60 D61 D62 D63 D64 D65 D66 D67 D68 0 DN OC P0 P1 P2 P3 DT SC BU 0
0
B0 B1 B2 B3 A0 A1 A2 A3
Control data
10 bits
Display data
68 bits
DD
2bits
∼
1
0
1
0
0
0
1
0
D69 D70
D123 D124 D125 D126 D127 D128 D129 D130 D131 D132 D133 D134 D135 D136 0
0
0
0 FC0 FC1 FC2 CT0 CT1 CT2 0
1
B0 B1 B2 B3 A0 A1 A2 A3
Display data
68 bits
Control data
10 bits
DD
2bits
∼ ∼ ∼
∼
∼
CCB address
8 bits
∼ ∼ ∼
∼ ∼ ∼
∼
CCB address
8 bits
1
0
1
0
0
0
1
0
D137 D138
D191 D192 D193 D194 D195 D196 D197 D198 D199 D200 0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
B0 B1 B2 B3 A0 A1 A2 A3
Display data
64 bits
Fixed data
14 bits
DD
2bits
∼ ∼ ∼
∼
CCB address
8 bits
∼ ∼ ∼
DI
∼ ∼ ∼
∼
CE
1
0
1
0
0
0
1
0
D201 D202
D255 D256 D257 D258 D259 D260 D261 D262 D263 D264 D265 D266 D267 D268 D269 D270 D271 D272 0
0
0
0
0
0
1
1
B0 B1 B2 B3 A0 A1 A2 A3
CCB address
8 bits
Display data
72 bits
Fixed data
6 bits
DD
2bits
Note: DD is the direction data.
No.A1687-12/35
LC75879PT
(2) When CL is stopped at the high level
CL
1
0
1
0
0
0
1
0
D1
D2
D55 D56 D57 D58 D59 D60 D61 D62 D63 D64 D65 D66 D67 D68 0 DN OC P0 P1 P2 P3 DT SC BU 0
0
B0 B1 B2 B3 A0 A1 A2 A3
CCB address
8 bits
DD
2bits
Control data
10 bits
∼
1
0
1
0
0
0
1
0
D69 D70
D123 D124 D125 D126 D127 D128 D129 D130 D131 D132 D133 D134 D135 D136 0
0
0
0 FC0 FC1 FC2 CT0 CT1 CT2 0
1
B0 B1 B2 B3 A0 A1 A2 A3
CCB address
8 bits
Control data
10 bits
DD
2bits
∼ ∼ ∼
∼
∼
Display data
68 bits
1
0
1
0
0
0
1
0
D137 D138
D191 D192 D193 D194 D195 D196 D197 D198 D199 D200 0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
B0 B1 B2 B3 A0 A1 A2 A3
CCB address
8 bits
Fixed data
14 bits
Display data
64 bits
DD
2bits
∼
∼ ∼ ∼
∼ ∼ ∼
∼ ∼ ∼
∼
Display data
68 bits
1
0
1
0
0
0
1
0
D201 D202
D255 D256 D257 D258 D259 D260 D261 D262 D263 D264 D265 D266 D267 D268 D269 D270 D271 D272 0
0
0
0
0
0
1
1
B0 B1 B2 B3 A0 A1 A2 A3
CCB address
8 bits
Display data
72 bits
Fixed data
6 bits
DD
2bits
Note: DD is the direction data.
• CCB address ....... "45H"
• D1 to D272 .......... Display data
• DN ……………... S68 pin and S69/OSCI pin state setting control data
• OC ……………... Internal oscillator operating mode/external clock operating mode switching control data
• P0 to P3 ………... Segment output port/general-purpose output port switching control data
• DT ……………... 1/4-duty 1/3-bias drive or 1/3-duty 1/3-bias drive switching control data
• SC …………….... Segment on/off control data
• BU ……………... Normal mode/power-saving mode control data
• FC0 to FC2 …..... Common/segment output waveform frame frequency setting control data
• CT0 to CT2 ……. Display contrast setting control data
No.A1687-13/35
∼ ∼ ∼
DI
∼ ∼ ∼
∼
CE
LC75879PT
4. 1/3 duty (Simple mode transfer)
(1) When CL is stopped at the low level
CL
1
0
1
0
0
0
1
0
D1
D2
D55 D56 D57 D58 D59 D60 D61 D62 D63 D64 D65 D66 D67 D68 D69 DN OC P0 P1 P2 P3 DT SC BU 0
0
B0 B1 B2 B3 A0 A1 A2 A3
Control data
9 bits
Display data
69 bits
DD
2bits
∼ ∼ ∼
∼
∼
CCB address
8 bits
1
0
1
0
0
0
1
0
D70 D71
D124 D125 D126 D127 D128 D129 D130 D131 D132 D133 D134 D135 D136 D137 D138 D139 D140 D141 FC0 FC1 FC2 CT0 CT1 CT2 0
1
B0 B1 B2 B3 A0 A1 A2 A3
Display data
72 bits
Control data
6 bits
DD
2bits
∼ ∼ ∼
∼
CCB address
8 bits
∼ ∼ ∼
DI
∼ ∼ ∼
∼
CE
1
0
1
0
0
0
1
0
D142 D143
D196 D197 D198 D199 D200 D201 D202 D203 D204 D205 D206 D207 0
0
0
0
0
0
0
0
0
0
0
0
1
0
B0 B1 B2 B3 A0 A1 A2 A3
CCB address
8 bits
Display data
66 bits
Fixed data
12 bits
DD
2bits
Note: DD is the direction data.
No.A1687-14/35
LC75879PT
(2) When CL is stopped at the high level
CL
1
0
1
0
0
0
1
0
D1 D2
D55 D56 D57 D58 D59 D60 D61 D62 D63 D64 D65 D66 D67 D68 D69 DN OC P0 P1 P2 P3 DT SC BU 0
0
B0 B1 B2 B3 A0 A1 A2 A3
CCB address
8 bits
Control data
9 bits
DD
2bits
∼ ∼
∼ ∼
∼ ∼
Display data
69 bits
1
0
1
0
0
0
1
0
D70 D71
D124 D125 D126 D127 D128 D129 D130 D131 D132 D133 D134 D135 D136 D137 D138 D139 D140 D141 FC0 FC1 FC2 CT0 CT1 CT2 0
1
B0 B1 B2 B3 A0 A1 A2 A3
CCB address
8 bits
Control data
6 bits
DD
2bits
∼ ∼
∼ ∼
Display data
72 bits
∼ ∼
DI
∼ ∼
∼ ∼
CE
1
0
1
0
0
0
1
0
D142 D143
D196 D197 D198 D199 D200 D201 D202 D203 D204 D205 D206 D207 0
0
0
0
0
0
0
0
0
0
0
0
1
0
B0 B1 B2 B3 A0 A1 A2 A3
CCB address
8 bits
Display data
66 bits
Fixed data
12 bits
DD
2bits
Note: DD is the direction data
• CCB address …………… “45H”
• D1 to D207 …………….. Display data
• DN ……………………… S68 pin and S69/OSCI pin state setting control data
• OC ……………………… Internal oscillator operating mode/external clock operating mode switching control data
• P0 to P3 ………………… Segment output port/general-purpose output port switching control data
• DT ……………………… 1/4-duty 1/3-bias drive or 1/3-duty 1/3-bias drive switching control data
• SC ……………………… Segment on/off control data
• BU ……………………… Normal mode/power-saving mode control data
• FC0 to FC2 …………….. Common/segment output waveform frame frequency setting control data
• CT0 to CT2 …………….. Display contrast setting control data
No.A1687-15/35
LC75879PT
Serial Data Transfer Example
(1) 1/4 duty
• When 201 or more segments are used
All 352 bits of serial data must be sent.
8 bits
1
0
1
0
0
88 bits
0
1
0
D1 D2
D60 D61 D62 D63 D64 D65 D66 D67 D68 0
0
0 PS10 PS11 PS2 PS3 PS4 EXF DN OC P0 P1 P2 P3 DT SC BU 0
0
D69 D70
D128 D129 D130 D131 D132 D133 D134 D135 D136 0
0
0
0 PF0 PF1 PF2 PF3 FC0 FC1 FC2 CT0 CT1 CT2 0
1
D137 D138
D196 D197 D198 D199 D200 0
0 W10 W11 W12 W13 W14 W15 W20 W21 W22 W23 W24 W25 W30 W31 W32 W33 W34 W35 1
0
D201 D202
D260 D261 D262 D263 D264 D265 D266 D267 D268 D269 D270 D271 D272 0
1
1
B0 B1 B2 B3 A0 A1 A2 A3
1
0
1
0
0
0
1
0
0
0
0
0
B0 B1 B2 B3 A0 A1 A2 A3
1
0
1
0
0
0
1
0
0
0
B0 B1 B2 B3 A0 A1 A2 A3
1
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
B0 B1 B2 B3 A0 A1 A2 A3
• When fewer than 201 segments are used
The 264 bits of serial data must be sent.
However, the serial data shown below (the D1 to D200 display data and the control data) must always be sent.
8 bits
1
0
1
0
0
88 bits
0
1
0
D1 D2
D60 D61 D62 D63 D64 D65 D66 D67 D68 0
0
0 PS10 PS11 PS2 PS3 PS4 EXF DN OC P0 P1 P2 P3 DT SC BU 0
0
D69 D70
D128 D129 D130 D131 D132 D133 D134 D135 D136 0
0
0
0 PF0 PF1 PF2 PF3 FC0 FC1 FC2 CT0 CT1 CT2 0
1
D137 D138
D196 D197 D198 D199 D200 0
0 W10 W11 W12 W13 W14 W15 W20 W21 W22 W23 W24 W25 W30 W31 W32 W33 W34 W35 1
0
B0 B1 B2 B3 A0 A1 A2 A3
1
0
1
0
0
0
1
0
0
0
0
0
B0 B1 B2 B3 A0 A1 A2 A3
1
0
1
0
0
0
1
0
0
0
B0 B1 B2 B3 A0 A1 A2 A3
2. 1/3 duty
All 264 bits of serial data must be sent.
8 bits
1
0
1
0
0
88 bits
0
1
0
D1 D2
D60 D61 D62 D63 D64 D65 D66 D67 D68 D69 0
0 PS10 PS11 PS2 PS3 PS4 EXF DN OC P0 P1 P2 P3 DT SC BU 0
D70 D71
D129 D130 D131 D132 D133 D134 D135 D136 D137 D138 D139 D140 D141 0
D142 D143
D201 D202 D203 D204 D205 D206 D207 0
0
B0 B1 B2 B3 A0 A1 A2 A3
1
0
1
0
0
0
1
0
0
0
0 PF0 PF1 PF2 PF3 FC0 FC1 FC2 CT0 CT1 CT2 0
1
0 W10 W11 W12 W13 W14 W15 W20 W21 W22 W23 W24 W25 W30 W31 W32 W33 W34 W35 1
0
B0 B1 B2 B3 A0 A1 A2 A3
1
0
1
0
0
0
1
0
B0 B1 B2 B3 A0 A1 A2 A3
No.A1687-16/35
LC75879PT
3. 1/4 duty (Simple mode transfer)
• When 201 or more segments are used
All 320 bits of serial data must be sent.
8 bits
1
0
1
0
0
80 bits
0
1
0
D1 D2
D52 D53 D54 D55 D56 D57 D58 D59 D60 D61 D62 D63 D64 D65 D66 D67 D68 0 DN OC P0 P1 P2 P3 DT SC BU 0
0
D69 D70
D120 D121 D122 D123 D124 D125 D126 D127 D128 D129 D130 D131 D132 D133 D134 D135 D136 0
0
0
0 FC0 FC1 FC2 CT0 CT1 CT2 0
1
D137 D138
D188 D189 D190 D191 D192 D193 D194 D195 D196 D197 D198 D199 D200 0
0
0
0
0
0
0
0
0
0
1
0
D201 D202
D252 D253 D254 D255 D256 D257 D258 D259 D260 D261 D262 D263 D264 D265 D266 D267 D268 D269 D270 D271 D272 0
0
0
0
0
0
1
1
D1 D2
D52 D53 D54 D55 D56 D57 D58 D59 D60 D61 D62 D63 D64 D65 D66 D67 D68 0 DN OC P0 P1 P2 P3 DT SC BU 0
0
D69 D70
D120 D121 D122 D123 D124 D125 D126 D127 D128 D129 D130 D131 D132 D133 D134 D135 D136 0
0 FC0 FC1 FC2 CT0 CT1 CT2 0
1
D1 D2
D52 D53 D54 D55 D56 D57 D58 D59 D60 D61 D62 D63 D64 D65 D66 D67 D68 D69 DN OC P0 P1 P2 P3 DT SC BU 0
0
D70 D71
D121 D122 D123 D124 D125 D126 D127 D128 D129 D130 D131 D132 D133 D134 D135 D136 D137 D138 D139 D140 D141 FC0 FC1 FC2 CT0 CT1 CT2 0
1
D142 D143
D193 D194 D195 D196 D197 D198 D199 D200 D201 D202 D203 D204 D205 D206 D207 0
1
0
D1 D2
D52 D53 D54 D55 D56 D57 D58 D59 D60 D61 D62 D63 D64 D65 D66 D67 D68 D69 DN OC P0 P1 P2 P3 DT SC BU 0
0
D70 D71
D121 D122 D123 D124 D125 D126 D127 D128 D129 D130 D131 D132 D133 D134 D135 D136 D137 D138 D139 D140 D141 FC0 FC1 FC2 CT0 CT1 CT2 0
1
B0 B1 B2 B3 A0 A1 A2 A3
1
0
1
0
0
0
1
0
B0 B1 B2 B3 A0 A1 A2 A3
1
0
1
0
0
0
1
0
0
0
0
0
B0 B1 B2 B3 A0 A1 A2 A3
1
0
1
0
0
0
1
0
B0 B1 B2 B3 A0 A1 A2 A3
• When fewer than 201 segments are used
Either 160 or 240 bits of serial data must be sent, depending on the number of segments to be used.
However, the serial data shown below (the D1 to D136 display data and the control data) must always be sent.
8 bits
1
0
1
0
0
80 bits
0
1
0
B0 B1 B2 B3 A0 A1 A2 A3
1
0
1
0
0
0
1
0
0
0
B0 B1 B2 B3 A0 A1 A2 A3
4. 1/3duty (Simple mode transfer)
• When 142 or more segments are used
All 240 bits of serial data must be sent.
8 bits
1
0
1
0
0
80 bits
0
1
0
B0 B1 B2 B3 A0 A1 A2 A3
1
0
1
0
0
0
1
0
B0 B1 B2 B3 A0 A1 A2 A3
1
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
B0 B1 B2 B3 A0 A1 A2 A3
• When fewer than 142 segments are used
The 160 bits of serial data must be sent.
However, the serial data shown below (the D1 to D141 display data and the control data) must always be sent.
80 bits
8 bits
1
0
1
0
0
0
1
0
B0 B1 B2 B3 A0 A1 A2 A3
1
0
1
0
0
0
1
0
B0 B1 B2 B3 A0 A1 A2 A3
No.A1687-17/35
LC75879PT
Control Data Functions
(1) PS10 and PS11, PS2 to PS4 … General-purpose output port (P1 to P4) function setting control data
These control data bits set the general-purpose output function (High or low level output), clock output function or
PWM output function of the P1 output pin, and the general-purpose output function (High or low level output) or
PWM output function of the P2 to P4 output pins.
However, be careful of being unable to set a PWM output function when the external clock operating frequency is
set the fCK2=38[kHz] typ (EXF="1") in external clock operating mode (OC= "1").
In addition, be careful of setting of the general-purpose output function (High or low level output) in the case of the
simple mode transfer forcibly.
PS10
PS11
0
0
General-purpose output function (High or low level output )
General-purpose output port (P1) function
1
0
Clock output function (Clock frequency : fosc/2, fCK/2 )
0
1
Clock output function (Clock frequency : fosc/8, fCK/8 )
1
1
PWM output function (Support for PWM data W10 to W15)
PS2
General-purpose output port (P2) function
0
General-purpose output function (High or low level output )
1
PWM output function (Support for PWM data W20 to W25)
PS3
General-purpose output port (P3) function
0
General-purpose output function (High or low level output )
1
PWM output function (Support for PWM data W30 to W35)
PS4
General-purpose output port (P4) function
0
General-purpose output function (High or low level output )
1
PWM output function (Support for PWM data W10 to W15)
(2) EXF … External clock operating frequency setting control data
This control data bit sets the operating frequency of the external clock which input into the OSCI pin, when the
external clock operating mode (OC="1") is set. However, be careful of setting the fCK1=300[kHz]typ when the
external clock operating mode (OC="1") is set in the case of the simple mode transfer forcibly. In addition, this data
is effective only when external clock operating mode (OC= "1") is set.
EXF
External clock operating frequency fCK[kHz]
0
fCK1=300[kHz] typ
1
fCK2=38[kHz] typ
(3) DN … S68 pin and S69/OSCI pin state setting control data
This control data bit sets state of the S68 pin and the S69/OSCI pin.
DN
Number of display segments
Pin state
1/4 duty
1/3 duty
S68
S69/OSCI
0
Up to 264 segments
Up to 201 segment
“L”(VSS)
“L”(VSS)/OSCI
1
Up to 272 segments
Up to 207 segment
S68
S69/OSCI
Note: "L" (VSS)
: Low (VSS) level output
S68
: Segment output
"L" (VSS)/OSCI : Low (VSS) level output in internal oscillator operating mode (OC=0)
External clock input in external clock operating mode (OC=1)
S69/OSCI
: Segment output in internal oscillator operating mode (OC=0)
External clock input in external clock operating mode (OC=1)
No.A1687-18/35
LC75879PT
(4) OC … Internal oscillator operating mode/external clock operating mode switching control data
This control data bit selects either the internal oscillator operating mode or external clock operating mode.
OC
Fundamental clock operating mode
0
Internal oscillator operating mode
S69
1
External clock operating mode
OSCI
Note: S69
OSCI
I/O pin (S69/OSCI) state
: Segment output
: External clock input
(5) P0 to P3 … Segment output port/general-purpose output port switching control data
These control data bits switch the segment output port/general-purpose output port functions of the S1/P1 to S8/P8
output pins.
Control data
Output pin state
P0
P1
P2
P3
S1/P1
S2/P2
S3/P3
S4/P4
S5/P5
S6/P6
S7/P7
S8/P8
0
0
0
0
S1
S2
S3
S4
S5
S6
S7
S8
0
0
0
1
P1
S2
S3
S4
S5
S6
S7
S8
0
0
1
0
P1
P2
S3
S4
S5
S6
S7
S8
0
0
1
1
P1
P2
P3
S4
S5
S6
S7
S8
0
1
0
0
P1
P2
P3
P4
S5
S6
S7
S8
0
1
0
1
P1
P2
P3
P4
P5
S6
S7
S8
0
1
1
0
P1
P2
P3
P4
P5
P6
S7
S8
0
1
1
1
P1
P2
P3
P4
P5
P6
P7
S8
1
0
0
0
P1
P2
P3
P4
P5
P6
P7
P8
Note1: Sn(n=1 to 8): Segment output ports
Pn(n=1 to 8): General-purpose output ports
Note2: When are setting (P0,P1,P2,P3)=(1,0,0,1), (1,0,1,0), (1,0,1,1) and (1,1,X,X), the all P1/S1 to P8/S8 output
pins selects the segment output port.
X: don’t care
The table below lists the correspondence between the display data and the output pins when these pins are selected
to be general-purpose output ports (general-purpose output function).
Correspondence display data
Output pin
1/4 duty
1/3 duty
S1/P1
D1
D1
S2/P2
D5
D4
S3/P3
D9
D7
S4/P4
D13
D10
S5/P5
D17
D13
S6/P6
D21
D16
S7/P7
D25
D19
S8/P8
D29
D22
For example, if the circuit is operated in 1/4 duty and the S4/P4 output pin is selected to be a general-purpose output
port and is set general-purpose output function, the S4/P4 output pin will output a high level when the display data
D13 is 1, and will output a low level when D13 is 0.
(6) DT … 1/4-duty 1/3-bias drive or 1/3-duty 1/3-bias drive switching control data
This control data bit selects either 1/4-duty 1/3-bias drive or 1/3-duty 1/3-bias drive.
DT
Drive scheme
The COM4/S67 pin state
0
1/4-duty 1/3-bias drive
COM4
1
1/3-duty 1/3-bias drive
S67
Note: COM4 : Common output
S67
: Segment output
No.A1687-19/35
LC75879PT
(7) SC … Segment on/off control data
This control data bit controls the on/off state of the segments.
SC
Display state
0
On
1
Off
Note that when the segments are turned off by setting SC to 1, the segments are turned off by outputting segment off
waveforms from the segment output pins.
(8) BU … Normal mode/power-saving mode control data
This control data bit selects either normal mode or power-saving mode.
BU
Mode
Normal mode
0
Power saving mode
In this mode, the internal oscillator circuit stops oscillation (the S69/OSCI pin is configured for segment output) if the IC is
in the internal oscillator operating mode (OC=0) and the IC stops receiving external clock signals (the S69/OSCI pin is
configured for external clock input) if the IC is in the external clock operating mode (OC=1).
1
The common and segment output pins go to the VSS level. However, the S1/P1 to S8/P8 output pins can be used as
general-purpose output ports under the control of the data bits P0 to P3.
(The general-purpose output port P1 to P4 can not be used as clock output or PWM output).
(9) PF0 to PF3 … PWM output waveform frame frequency setting control data
These control data bits set the frame frequency of the PWM output waveforms. However, when the PWM output
function isn’t used, these control data bits become invalid. In addition, when the external clock operating frequency
is set the fCK2=38[kHz] typ (EXF="1") in external clock operating mode (OC= "1") or when the serial data transfer
is the simple mode transfer, these control data bits become invalid.
Control data
PF0
PF1
PF2
PWM output waveform frame frequency fp[Hz]
PF3
Internal oscillator operating mode
External clock operating mode
(The control data OC is 0,
(The control data OC is 1 and EXF is 0,
fosc=300[kHz] typ)
fCK1=300[kHz] typ)
0
0
0
0
fosc/1536
fCK1/1536
1
0
0
0
fosc/1408
fCK1/1408
0
1
0
0
fosc/1280
fCK1/1280
1
1
0
0
fosc/1152
fCK1/1152
0
0
1
0
fosc/1024
fCK1/1024
1
0
1
0
fosc/896
fCK1/896
0
1
1
0
fosc/768
fCK1/768
1
1
1
0
fosc/640
fCK1/640
0
0
0
1
fosc/512
fCK1/512
1
0
0
1
fosc/384
fCK1/384
0
1
0
1
fosc/256
fCK1/256
Note : When is setting (PF0,PF1,PF2,PF3)=(1,1,0,1) and (X,X,1,1), the frame frequency is same as frame
frequency at the time of the (PF0,PF1,PF2,PF3)=(1,0,1,0) setting (fosc/896, fCK1/896).
X: don’t care
No.A1687-20/35
LC75879PT
(10) FC0 to FC2 … Common/segment output waveform fram frequency control data
These control data bits set the frame frequency of the common and segment output waveforms.
Control data
FC0
FC1
Common/segment output waveform frame frequency fo[Hz]
FC2
Internal oscillator
External clock
External clock
operating mode
operating mode
operating mode
(The control data OC is 0,
(The control data OC is 1
(The control data OC is 1
fosc=300[kHz] typ)
and EXF is 0,
and EXF is 1,
fCK1=300[kHz] typ)
fCK2=38[kHz] typ)
1
1
0
fosc/6144
fCK1/6144
fCK2/768
1
1
1
fosc/4608
fCK1/4608
fCK2/576
0
0
0
fosc/3072
fCK1/3072
fCK2/384
0
0
1
fosc/2304
fCK1/2304
fCK2/288
0
1
0
fosc/1536
fCK1/1536
fCK2/192
0
1
1
fosc/1152
fCK1/1152
fCK2/144
1
0
0
fosc/768
fCK1/768
fCK2/96
Note: When is setting (FC0,FC1,FC2)=(1,0,1), the frame frequency is same as frame frequency at the time of the
(FC0,FC1,FC2)=(0,0,0) setting (fosc/3072, fCK1/3072, fCK2/384).
(11) CT0 to CT2 … Display contrast setting control data
These control data bits set display contrast.
CT0 to CT2: Sets the display contrast (7 steps)
CT0
CT1
CT2
LCD drive 3/3 bias voltage VDD0 level
0
0
0
1.00VDD=VDD-(0.05VDD×0)
1
0
0
0.95VDD=VDD-(0.05VDD×1)
0
1
0
0.90VDD=VDD-(0.05VDD×2)
1
1
0
0.85VDD=VDD-(0.05VDD×3)
0
0
1
0.80VDD=VDD-(0.05VDD×4)
1
0
1
0.75VDD=VDD-(0.05VDD×5)
0
1
1
0.70VDD=VDD-(0.05VDD×6)
Note: When is setting (CT0,CT1,CT2)=(1,1,1), the LCD drive 3/3 bias voltage VDD0 level is 1.00VDD.
Note that although the display contrast can be adjusted by operating the built-in display contrast
adjustment circuit, it can also be adjusted by modifying the supply pin VDD voltage level.
No.A1687-21/35
LC75879PT
(12) W10 to W15, W20 to W25, W30 to W35 …… PWM data of the PWM output
These control data bits set the pulse width of the PWM output P1 to P4. However, when the PWM output function
isn’t used, these control data bits become invalid. In addition, when the external clock operating frequency is set
the fCK2=38[kHz] typ (EXF="1") in external clock operating mode (OC= "1") or when the serial data transfer is
the simple mode transfer, these control data bits become invalid.
Wn0
Wn1
Wn2
Wn3
Wn4
Wn5
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
1
1
0
0
0
0
1
0
1
0
1
0
1
1
1
0
Pulse width of
Pulse width of
Wn0
Wn1
Wn2
Wn3
Wn4
Wn5
(1/64)×Tp
0
0
0
0
0
1
(33/64)×Tp
(2/64)×Tp
1
0
0
0
0
1
(34/64)×Tp
0
(3/64)×Tp
0
1
0
0
0
1
(35/64)×Tp
0
0
(4/64)×Tp
1
1
0
0
0
1
(36/64)×Tp
0
0
(5/64)×Tp
0
0
1
0
0
1
(37/64)×Tp
0
0
0
(6/64)×Tp
1
0
1
0
0
1
(38/64)×Tp
1
0
0
0
(7/64)×Tp
0
1
1
0
0
1
(39/64)×Tp
1
0
0
0
(8/64)×Tp
1
1
1
0
0
1
(40/64)×Tp
0
0
1
0
0
(9/64)×Tp
0
0
0
1
0
1
(41/64)×Tp
1
0
0
1
0
0
(10/64)×Tp
1
0
0
1
0
1
(42/64)×Tp
0
1
0
1
0
0
(11/64)×Tp
0
1
0
1
0
1
(43/64)×Tp
1
1
0
1
0
0
(12/64)×Tp
1
1
0
1
0
1
(44/64)×Tp
0
0
1
1
0
0
(13/64)×Tp
0
0
1
1
0
1
(45/64)×Tp
1
0
1
1
0
0
(14/64)×Tp
1
0
1
1
0
1
(46/64)×Tp
0
1
1
1
0
0
(15/64)×Tp
0
1
1
1
0
1
(47/64)×Tp
1
1
1
1
0
0
(16/64)×Tp
1
1
1
1
0
1
(48/64)×Tp
0
0
0
0
1
0
(17/64)×Tp
0
0
0
0
1
1
(49/64)×Tp
1
0
0
0
1
0
(18/64)×Tp
1
0
0
0
1
1
(50/64)×Tp
0
1
0
0
1
0
(19/64)×Tp
0
1
0
0
1
1
(51/64)×Tp
1
1
0
0
1
0
(20/64)×Tp
1
1
0
0
1
1
(52/64)×Tp
0
0
1
0
1
0
(21/64)×Tp
0
0
1
0
1
1
(53/64)×Tp
1
0
1
0
1
0
(22/64)×Tp
1
0
1
0
1
1
(54/64)×Tp
0
1
1
0
1
0
(23/64)×Tp
0
1
1
0
1
1
(55/64)×Tp
1
1
1
0
1
0
(24/64)×Tp
1
1
1
0
1
1
(56/64)×Tp
0
0
0
1
1
0
(25/64)×Tp
0
0
0
1
1
1
(57/64)×Tp
1
0
0
1
1
0
(26/64)×Tp
1
0
0
1
1
1
(58/64)×Tp
0
1
0
1
1
0
(27/64)×Tp
0
1
0
1
1
1
(59/64)×Tp
1
1
0
1
1
0
(28/64)×Tp
1
1
0
1
1
1
(60/64)×Tp
0
0
1
1
1
0
(29/64)×Tp
0
0
1
1
1
1
(61/64)×Tp
1
0
1
1
1
0
(30/64)×Tp
1
0
1
1
1
1
(62/64)×Tp
0
1
1
1
1
0
(31/64)×Tp
0
1
1
1
1
1
(63/64)×Tp
1
1
1
1
1
0
(32/64)×Tp
1
1
1
1
1
1
(64/64)×Tp
PWM output
Note: W10 to W15 … PWM data of the output pin S1/P1 and S4/P4
W20 to W25 … PWM data of the output pin S2/P2
W30 to W35 … PWM data of the output pin S3/P3
PWM output
1
Tp= fp
No.A1687-22/35
LC75879PT
Display Data and Output Pin Correspondence (1/4 Duty)
Output pin
COM1
COM2
COM3
COM4
Output pin
COM1
COM2
COM3
COM4
S1/P1
D1
D2
D3
D4
S35
D137
D138
D139
D140
S2/P2
D5
D6
D7
D8
S36
D141
D142
D143
D144
S3/P3
D9
D10
D11
D12
S37
D145
D146
D147
D148
S4/P4
D13
D14
D15
D16
S38
D149
D150
D151
D152
S5/P5
D17
D18
D19
D20
S39
D153
D154
D155
D156
S6/P6
D21
D22
D23
D24
S40
D157
D158
D159
D160
S7/P7
D25
D26
D27
D28
S41
D161
D162
D163
D164
S8/P8
D29
D30
D31
D32
S42
D165
D166
D167
D168
S9
D33
D34
D35
D36
S43
D169
D170
D171
D172
S10
D37
D38
D39
D40
S44
D173
D174
D175
D176
S11
D41
D42
D43
D44
S45
D177
D178
D179
D180
S12
D45
D46
D47
D48
S46
D181
D182
D183
D184
S13
D49
D50
D51
D52
S47
D185
D186
D187
D188
S14
D53
D54
D55
D56
S48
D189
D190
D191
D192
S15
D57
D58
D59
D60
S49
D193
D194
D195
D196
S16
D61
D62
D63
D64
S50
D197
D198
D199
D200
S17
D65
D66
D67
D68
S51
D201
D202
D203
D204
S18
D69
D70
D71
D72
S52
D205
D206
D207
D208
S19
D73
D74
D75
D76
S53
D209
D210
D211
D212
S20
D77
D78
D79
D80
S54
D213
D214
D215
D216
S21
D81
D82
D83
D84
S55
D217
D218
D219
D220
S22
D85
D86
D87
D88
S56
D221
D222
D223
D224
S23
D89
D90
D91
D92
S57
D225
D226
D227
D228
S24
D93
D94
D95
D96
S58
D229
D230
D231
D232
S25
D97
D98
D99
D100
S59
D233
D234
D235
D236
S26
D101
D102
D103
D104
S60
D237
D238
D239
D240
S27
D105
D106
D107
D108
S61
D241
D242
D243
D244
S28
D109
D110
D111
D112
S62
D245
D246
D247
D248
S29
D113
D114
D115
D116
S63
D249
D250
D251
D252
S30
D117
D118
D119
D120
S64
D253
D254
D255
D256
S31
D121
D122
D123
D124
S65
D257
D258
D259
D260
S32
D125
D126
D127
D128
S66
D261
D262
D263
D264
S33
D129
D130
D131
D132
S68
D265
D266
D267
D268
S34
D133
D134
D135
D136
S69/OSCI
D269
D270
D271
D272
Note: This table assumes that pins S1/P1 to S8/P8 and S69/OSCI are configured for segment output.
No.A1687-23/35
LC75879PT
For example, the table below lists the output states for the S21 output pin.
Display data
Output pin (S21) state
D81
D82
D83
D84
0
0
0
0
The LCD segments corresponding to COM1, COM2, COM3, and COM4 are off.
0
0
0
1
The LCD segment corresponding to COM4 is on.
0
0
1
0
The LCD segment corresponding to COM3 is on.
0
0
1
1
The LCD segment corresponding to COM3 and COM4 are on.
0
1
0
0
The LCD segment corresponding to COM2 is on.
0
1
0
1
The LCD segment corresponding to COM2 and COM4 are on.
0
1
1
0
The LCD segment corresponding to COM2 and COM3 are on.
0
1
1
1
The LCD segments corresponding to COM2, COM3, and COM4 are on.
1
0
0
0
The LCD segment corresponding to COM1 is on.
1
0
0
1
The LCD segment corresponding to COM1 and COM4 are on.
1
0
1
0
The LCD segment corresponding to COM1 and COM3 are on.
1
0
1
1
The LCD segments corresponding to COM1, COM3, and COM4 are on.
1
1
0
0
The LCD segment corresponding to COM1 and COM2 are on.
1
1
0
1
The LCD segments corresponding to COM1, COM2, and COM4 are on.
1
1
1
0
The LCD segments corresponding to COM1, COM2, and COM3 are on.
1
1
1
1
The LCD segments corresponding to COM1, COM2, COM3, and COM4 are on.
No.A1687-24/35
LC75879PT
Display Data and Output Pin Correspondence (1/3 Duty)
Output pin
COM1
COM2
COM3
Output pin
COM1
COM2
COM3
S1/P1
D1
D2
D3
S36
D106
D107
D108
S2/P2
D4
D5
D6
S37
D109
D110
D111
S3/P3
D7
D8
D9
S38
D112
D113
D114
S4/P4
D10
D11
D12
S39
D115
D116
D117
S5/P5
D13
D14
D15
S40
D118
D119
D120
S6/P6
D16
D17
D18
S41
D121
D122
D123
S7/P7
D19
D20
D21
S42
D124
D125
D126
S8/P8
D22
D23
D24
S43
D127
D128
D129
S9
D25
D26
D27
S44
D130
D131
D132
S10
D28
D29
D30
S45
D133
D134
D135
S11
D31
D32
D33
S46
D136
D137
D138
S12
D34
D35
D36
S47
D139
D140
D141
S13
D37
D38
D39
S48
D142
D143
D144
S14
D40
D41
D42
S49
D145
D146
D147
S15
D43
D44
D45
S50
D148
D149
D150
S16
D46
D47
D48
S51
D151
D152
D153
S17
D49
D50
D51
S52
D154
D155
D156
S18
D52
D53
D54
S53
D157
D158
D159
S19
D55
D56
D57
S54
D160
D161
D162
S20
D58
D59
D60
S55
D163
D164
D165
S21
D61
D62
D63
S56
D166
D167
D168
S22
D64
D65
D66
S57
D169
D170
D171
S23
D67
D68
D69
S58
D172
D173
D174
S24
D70
D71
D72
S59
D175
D176
D177
S25
D73
D74
D75
S60
D178
D179
D180
S26
D76
D77
D78
S61
D181
D182
D183
S27
D79
D80
D81
S62
D184
D185
D186
S28
D82
D83
D84
S63
D187
D188
D189
S29
D85
D86
D87
S64
D190
D191
D192
S30
D88
D89
D90
S65
D193
D194
D195
S31
D91
D92
D93
S66
D196
D197
D198
S32
D94
D95
D96
S67/COM4
D199
D200
D201
S33
D97
D98
D99
S68
D202
D203
D204
S34
D100
D101
D102
S69/OSCI
D205
D206
D207
S35
D103
D104
D105
Note: This table assumes that pins S1/P1 to S8/P8, S67/COM4 and S69/OSCI are configured for segment
output.
For example, the table below lists the output states for the S21 output pin.
Display data
Output pin (S21) state
D61
D62
D63
0
0
0
The LCD segments corresponding to COM1, COM2, and COM3 are off.
0
0
1
The LCD segment corresponding to COM3 is on.
0
1
0
The LCD segment corresponding to COM2 is on.
0
1
1
The LCD segment corresponding to COM2 and COM3 are on.
1
0
0
The LCD segment corresponding to COM1 is on.
1
0
1
The LCD segment corresponding to COM1 and COM3 are on.
1
1
0
The LCD segment corresponding to COM1 and COM2 are on.
1
1
1
The LCD segments corresponding to COM1, COM2, and COM3 are on.
No.A1687-25/35
LC75879PT
Output Waveforms (1/4-Duty 1/3-Bias Drive Scheme)
fo[Hz]
COM1
COM2
COM3
COM4
LCD driver output when all LCD segments
corresponding to COM1, COM2, COM3, and
COM4 are off.
LCD driver output when only LCD segments
corresponding to COM1 are on.
LCD driver output when only LCD segments
corresponding to COM2 are on.
LCD driver output when LCD segments
corresponding to COM1 and COM2 are on.
LCD driver output when only LCD segments
corresponding to COM3 are on.
LCD driver output when LCD segments
corresponding to COM1 and COM3 are on.
LCD driver output when LCD segments
corresponding to COM2 and COM3 are on.
LCD driver output when LCD segments
corresponding to COM1, COM2, and COM3
are on.
LCD driver output when only LCD segments
corresponding to COM4 are on.
LCD driver output when LCD segments
corresponding to COM2 and COM4 are on.
LCD driver output when all LCD segments
corresponding to COM1, COM2, COM3, and
COM4 are on.
VDD0
VDD1
VDD2
0V
VDD0
VDD1
VDD2
0V
VDD0
VDD1
VDD2
0V
VDD0
VDD1
VDD2
0V
VDD0
VDD1
VDD2
0V
VDD0
VDD1
VDD2
0V
VDD0
VDD1
VDD2
0V
VDD0
VDD1
VDD2
0V
VDD0
VDD1
VDD2
0V
VDD0
VDD1
VDD2
0V
VDD0
VDD1
VDD2
0V
VDD0
VDD1
VDD2
0V
VDD0
VDD1
VDD2
0V
VDD0
VDD1
VDD2
0V
VDD0
VDD1
VDD2
0V
No.A1687-26/35
LC75879PT
Control data
FC0
FC1
Common/segment output waveform frame frequency fo[Hz]
FC2
Internal oscillator operating mode
External clock operating mode
(The control data OC is 0,
(The control data OC is 1
External clock operating mode
(The control data OC is 1
fosc=300[kHz] typ)
and EXF is 0, fCK1=300[kHz] typ)
and EXF is 1, fCK2=38[kHz] typ)
1
1
0
fosc/6144
fCK1/6144
fCK2/768
1
1
1
fosc/4608
fCK1/4608
fCK2/576
0
0
0
fosc/3072
fCK1/3072
fCK2/384
0
0
1
fosc/2304
fCK1/2304
fCK2/288
0
1
0
fosc/1536
fCK1/1536
fCK2/192
0
1
1
fosc/1152
fCK1/1152
fCK2/144
1
0
0
fosc/768
fCK1/768
fCK2/96
Note: When is setting (FC0,FC1,FC2)=(1,0,1), the frame frequency is same as frame frequency at the time
of the (FC0,FC1,FC2)=(0,0,0) setting (fosc/3072, fCK1/3072, fCK2/384).
No.A1687-27/35
LC75879PT
Output Waveforms (1/3-Duty 1/3-Bias Drive Scheme)
fo[Hz]
COM1
VDD0
VDD1
VDD2
0V
COM2
VDD0
VDD1
VDD2
0V
COM3
VDD0
VDD1
VDD2
0V
LCD driver output when all LCD segments
corresponding to COM1, COM2, and COM3
are off.
LCD driver output when only LCD segments
corresponding to COM1 are on.
VDD0
VDD1
VDD2
0V
VDD0
VDD1
VDD2
0V
LCD driver output when only LCD segments
corresponding to COM2 are on.
VDD0
VDD1
VDD2
0V
LCD driver output when LCD segments
corresponding to COM1 and COM2 are on.
VDD0
VDD1
VDD2
0V
LCD driver output when only LCD segments
corresponding to COM3 are on.
VDD0
VDD1
VDD2
0V
LCD driver output when LCD segments
corresponding to COM1 and COM3 are on.
VDD0
VDD1
VDD2
0V
LCD driver output when LCD segments
corresponding to COM2 and COM3 are on.
VDD0
VDD1
VDD2
0V
LCD driver output when all LCD segments
corresponding to COM1, COM2,and COM3
are on.
VDD0
VDD1
VDD2
0V
No.A1687-28/35
LC75879PT
Control data
FC0
FC1
Common/segment output waveform frame frequency fo[Hz]
External clock operating mode
Internal oscillator operating mode
External clock operating mode
(The control data OC is 0,
(The control data OC is 1
(The control data OC is 1
fosc=300[kHz] typ)
and EXF is 0, fCK1=300[kHz] typ)
and EXF is 1, fCK2=38[kHz] typ)
FC2
1
1
0
fosc/6144
fCK1/6144
fCK2/768
1
1
1
fosc/4608
fCK1/4608
fCK2/576
0
0
0
fosc/3072
fCK1/3072
fCK2/384
0
0
1
fosc/2304
fCK1/2304
fCK2/288
0
1
0
fosc/1536
fCK1/1536
fCK2/192
0
1
1
fosc/1152
fCK1/1152
fCK2/144
1
0
0
fosc/768
fCK1/768
fCK2/96
Note: When is setting (FC0,FC1,FC2)=(1,0,1), the frame frequency is same as frame frequency at the time of the
(FC0,FC1,FC2)=(0,0,0) setting (fosc/3072, fCK1/3072, fCK2/384).
PWM output port waveforms
VDD
P1/P4
(56/64)×Tp
(1)
VSS
(56/64)×Tp
VDD
P2
(48/64)×Tp
VSS
(48/64)×Tp
VDD
P3
(40/64)×Tp
VSS
(40/64)×Tp
VDD
P1/P4
(8/64)×Tp
(2)
VSS
(8/64)×Tp
VDD
P2
VSS
(16/64)×Tp
(16/64)×Tp
VDD
P3
VSS
(24/64)×Tp
(24/64)×Tp
VDD
P1/P4
(32/64)×Tp
(3)
VSS
(32/64)×Tp
VDD
P2
(32/64)×Tp
VSS
(32/64)×Tp
VDD
P3
(32/64)×Tp
VSS
(32/64)×Tp
Tp
Tp=
Tp
1
fp
Control data
PWM output
W10
W11
W12
W13
W14
W15
W20
W21
W22
W23
W24
W25
W30
W31
W32
W33
W34
W35
waveforms
1
1
1
0
1
1
1
1
1
1
0
1
1
1
1
0
0
1
(1)
1
1
1
0
0
0
1
1
1
1
0
0
1
1
1
0
1
0
(2)
1
1
1
1
1
0
1
1
1
1
1
0
1
1
1
1
1
0
(3)
No.A1687-29/35
LC75879PT
Control data
PF0
PF1
PWM output waveform frame frequency fp[Hz]
PF2
PF3
Internal oscillator operating mode
External clock operating mode
(The control data OC is 0,
(The control data OC is 1 and
fosc=300[kHz] typ)
EXF is 0, fCK1=300[kHz] typ)
0
0
0
0
fosc/1536
fCK1/1536
1
0
0
0
fosc/1408
fCK1/1408
0
1
0
0
fosc/1280
fCK1/1280
1
1
0
0
fosc/1152
fCK1/1152
0
0
1
0
fosc/1024
fCK1/1024
1
0
1
0
fosc/896
fCK1/896
0
1
1
0
fosc/768
fCK1/768
1
1
1
0
fosc/640
fCK1/640
0
0
0
1
fosc/512
fCK1/512
1
0
0
1
fosc/384
fCK1/384
0
1
0
1
fosc/256
fCK1/256
Note: When is setting (PF0,PF1,PF2,PF3)=(1,1,0,1) and (X,X,1,1), the frame frequency is same as frame frequency at
the time of the (PF0,PF1,PF2,PF3)=(1,0,1,0) setting (fosc/896, fCK1/896).
X: don’t care
Clock output waveforms
Control data
P1
Tc/2
Tc=
1
fc
Tc
Clock frequency of clock output P1
PS10
PS11
fc(=1/Tc)[Hz]
1
0
Clock output function (fosc/2, fCK/2)
0
1
Clock output function (fosc/8, fCK/8)
No.A1687-30/35
LC75879PT
Display Control and the INH Pin
Since the LSI internal data (1/4 duty : the display data D1 to D272 and the control data, 1/3 duty : the display data D1 to
D207 and the control data) is undefined when power is first applied, applications should set the INH pin low at the same
time as power is applied to turn off the display (This sets the S1/P1 to S8/P8, S9 to S66, COM1 to COM3, COM4/S67,
S68, and S69/OSCI pins to the VSS level.) and during this period send serial data from the controller. The controller
should then set the INH pin high after the data transfer has completed. This procedure prevents meaningless display at
power on (See Figure 5, Figure 6, Figure 7 and Figure 8.)
(1)1/4 duty
t1
≈
t2
≈
VDD
INH
VIL1
CE
Display data and control
data transferred
VIL1
≈ ≈ ≈ ≈ ≈ ≈ ≈ ≈ ≈
tc
Internal data
D1 to D68, PS10, PS11,
PS2 to PS4, EXF, DN, OC,
P0 to P3, DT, SC, BU
Undefined
Defined
Undefined
Internal data
D69 to D136, PF0 to PF3,
FC0 to FC2, CT0 to CT2
Undefined
Defined
Undefined
Internal data
D137 to D200, W10 to W15,
W20 to W25, W30 to W35
Undefined
Defined
Undefined
Internal data
(D201 to D272)
Undefined
Undefined
Defined
Note: t1>1ms
t2>0
tc … 10μs min
[Figure 5]
(2) 1/3 duty
t2
≈
t1
≈
VDD
INH
VIL1
CE
D1 to D69, PS10, PS11,
PS2 to PS4, EXF, DN, OC,
P0 to P3, DT, SC, BU
Display data and control
data transferred
VIL1
≈ ≈ ≈ ≈ ≈ ≈ ≈
tc
Undefined
Defined
Undefined
Internal data D70 to D141, PF0 to PF3,
FC0 to FC2, CT0 to CT2
Undefined
Defined
Undefined
Internal data D142 to D207, W10 to W15,
W20 to W25, W30 to W35
Undefined
Defined
Undefined
Internal data
[Figure 6]
Note: t1>1ms
t2>0
tc … 10μs min
No.A1687-31/35
LC75879PT
(3)1/4 duty (Simple mode transfer)
t2
≈
t1
≈
VDD
INH
VIL1
CE
Display data and control
data transferred
VIL1
≈ ≈ ≈ ≈ ≈ ≈ ≈ ≈ ≈
tc
Internal data
D1 to D68, DN, OC,
P0 to P3, DT, SC, BU
Undefined
Defined
Undefined
Internal data
D69 to D136,
FC0 to FC2, CT0 to CT2
Undefined
Defined
Undefined
Undefined
Defined
Undefined
Undefined
Defined
Undefined
Internal data (D137 to D200)
Internal data (D201 to D272)
Note: t1>1ms
t2>0
tc …10μs min
[Figure 7]
(4)1/3 duty (Simple mode transfer)
t2
≈
t1
≈
VDD
INH
VIL1
Internal data
D1 to D69, DN, OC,
P0 to P3, DT, SC, BU
Display data and control
data transferred
Defined
Undefined
Internal data D70 to D141,
FC0 to FC2, CT0 to CT2
Undefined
Internal data (D142 to D207)
Undefined
VIL1
≈ ≈ ≈ ≈ ≈ ≈ ≈
tc
CE
Defined
Defined
[Figure 8]
Undefined
Undefined
Undefined
Note: t1>1ms
t2>0
tc …10μs min
No.A1687-32/35
LC75879PT
Notes on Controller Transfer of Display Data
When using the LC75879PT in 1/4 duty, applications transfer the display data (D1 to D272) in four operations,
and in 1/3 duty, they transfer the display data (D1 to D207) in three operations. In either case, applications
should transfer all of the display data within 30 ms to maintain the quality of displayed image.
S69/OSCI Pin Peripheral Circuit
(1) Internal oscillator operating mode (control data OC=0)
Connect the S69/OSCI pin to the LCD panel when the internal oscillator operating mode is selected.
OSCI/S69
To LCD panel
(2) External clock operating mode (control data OC=1)
When the external clock operating mode is selected, insert a current protection resistor Rg (2.2 to 22kΩ) between
the S69/OSCI pin and external clock output pin (external oscillator). Determine the value of the resistance according
to the allowable current value at the external clock output pin. Also make sure that the waveform of the external
clock is not heavily distorted.
External clock output pin
OSCI/S69
Rg
External oscillator
Note: Allowable current value at external clock output pin >
VDD
Rg
(3) Unused pin treatment
When the S69/OSCI pin is not to be used, select the internal oscillator operating mode (setting control data OC to 0)
to keep the pin open.
OSCI/S69
OPEN
P1 to P4 pin peripheral circuit
It is recommended the circuit shown below be used to adjust the brightness of the LED backlight using the PWM output
P1 to P4
+5V
LED
P1 to P4
No.A1687-33/35
LC75879PT
Sample Application Circuit 1
1/4 Duty, 1/3Bias
(P1)
(P2)
(P8)
VDD
+5V
General-purpose
output ports
Used for functions
such as backlight
control
COM1
COM2
VDD1
LCD panel (up to 272 segments)
COM3
S67/COM4
VDD2
C
C
P1/S1
P2/S2
VSS
P8/S8
S9
C≥0.047μF
INH
CE
From the
controller
CL
S66
S68
*3
DI
*4
OSCI/S69
*3 The pins to be connected to the controller (CE, CL, DI, INH) can handle 3.3V or 5V.
*4 Connect the S69/OSCI pin to the LCD panel in the internal oscillator operating mode and insert a current protection
resistor Rg (2.2 to 22kΩ) between the S69/OSCI pin and external clock output pin (external oscillator) in the
external clock operating mode (see “S69/OSCI Pin Peripheral Circuit”).
Sample Application Circuit 2
1/3 Duty, 1/3 Bias
(P1)
(P2)
(P8)
VDD
+5V
General-purpose
output ports
Used for functions
such as backlight
control
COM1
COM3
P1/S1
C
C
VDD2
P2/S2
VSS
P8/S8
S9
C≥0.047μF
From the
controller
INH
CE
CL
DI
S66
COM4/S67
*3
LCD panel (up to 207 segments)
COM2
VDD1
S68
*4
OSCI/S69
*3 The pins to be connected to the controller (CE, CL, DI, INH) can handle 3.3V or 5V.
*4 Connect the S69/OSCI pin to the LCD panel in the internal oscillator operating mode and insert a current protection
resistor Rg (2.2 to 22kΩ) between the S69/OSCI pin and external clock output pin (external oscillator) in the external
clock operating mode (see “S69/OSCI Pin Peripheral Circuit”)
No.A1687-34/35
LC75879PT
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ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd.
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product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the
SANYO Semiconductor Co.,Ltd. product that you intend to use.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed
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This catalog provides information as of May, 2010. Specifications and information herein are subject
to change without notice.
PS No.A1687-35/35