ENA2124 D

Ordering number : ENA2124
LC79431KNE
CMOS LSI
Dot-Matrix LCD Drivers
http://onsemi.com
Overview
The LC79431KNE is a large-scale dot matrix LCD common driver LSI. The LC79431KNE contains an 80-bit
bidirectional shift register and is equipped with a 4-level LCD driver. The input/output pins for cascade connection can
be used to further increase the IC’s number of bits. The LC79431KNE can be used in conjunction with segment driver
LC79401KNE (QIP100E) to drive a wide-screen LCD panel.
Features
• On-chip LCD drive circuit (80 bits)
• Display duty selection ranging from 1/64 to 1/256
• On-chip input/output pins support a further increases in bit number
• Supports externally supplied bias voltage
• Operating power supply voltage/operating temperature include
VDD (Logic section) : 2.7 to 5.5V/-20 to +85°C
VDD-VEE (LCD section) : 12 to 32V/-20 to +85°C
• CMOS process
• 100-pin flat plastic package (QIP100E)
Semiconductor Components Industries, LLC, 2013
July, 2013
91912HKPC 20080310-S00005 No. A2124-1/7
LC79431KNE
Specifications
Absolute Maximum Ratings at Ta = 25±2°C, VSS = 0V
Parameter
Symbol
Maximum supply voltage (Logic)
VDD max
Maximum supply voltage (LCD)
VDD-VEE max
Maximum input voltage
VI max
Storage temperature
Tstg
Conditions
Ratings
unit
-0.3 to +7.0
V
0 to 35
V
*1
-0.3 to VDD+0.3
V
-40 to +125
°C
Note *1 The following relations between elements should be maintained: VDD≥V1>V2>V5>VEE, VDD-V2≤7V,
V5-VEE≤7V
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating
Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
Allowable Operating Ranges at Ta = -20 to +85°C, VSS = 0V
Parameter
Symbol
Conditions
Supply voltage (Logic)
VDD
Supply voltage (LCD)
VDD-VEE
*2, 3
Input high level voltage
VIH
DIO1, DIO80, CP, M, RS/LS,
DISPOFF
Input low level voltage
VIL
DIO1, DIO80, CP, M, RS/LS,
DISPOFF
CP Shift clock
fCP
CP
CP pulse width
tWC
CP
min
typ
max
unit
2.7
5.5
V
12
32
V
0.8VDD
V
0.2VDD
1
V
MHz
63
ns
ns
Setup time
tSETUP
DIO1 → CP, DIO80 → CP
100
Hold time
tHOLD
DIO1 → CP, DIO80 → CP
100
CP rise time
tR
CP
50
ns
CP fall time
tF
CP
50
ns
ns
Note *2 The following relations between elements should be maintained: VDD≥V1>V2>V5>VEE, VDD-V2≤7V,
V5-VEE≤7V
*3 When the power supply is turned on, power to the LCD driver is turned on after or simultaneously with the
turning on of the logic section’s power supply. When the power supply is turned off, the logic power supply is
turned off after or at the same time the LCD driver power supply is turned off.
Electrical Characteristics at Ta = 25±2°C, VDD = 2.7 to 5.5V
Parameter
Symbol
Conditions
Input high level current
IIH
VIN=VDD, VDD=5.5V, DIO1, DIO80,
CP, M, RS/LS, DISPOFF
Input low level current
IIL
VIN=VSS, VDD=5.5V, DIO1, DIO80,
CP, M, RS/LS, DISPOFF
Output high level voltage
VOH
IOH=-0.4mA, DIO1, DIO80
Output low level voltage
VOL
IOL=0.4mA, DIO1, DIO80
Driver on resistance
RON(1)
RON(2)
VDD-VEE=30V, ⎜VDE-VO⎜=0.5V
VDD=4.5V, O1 to O80 *4
VDD-VEE=20V, ⎜VDE-VO⎜=0.5V
ISS
VDD=4.5V, O1 to O80 *4
VDD-VEE=30V, CP=14kHz
Consumable current drain (1)
min
typ
max
1
IEE
VDD-VEE=30V, CP=14kHz
no-load, VDD=5.5V ; VEE
Input capacitance
CI
f=1MHz ; CP
μA
μA
-1
VDD-0.4
V
no-load, VDD=5.5V ; VSS
Consumable current drain (2)
unit
0.4
V
1.0
kΩ
1.0
kΩ
100
μA
100
μA
6
pF
Note *4 VDE = V1 or V2 or V5 or VEE, V1 = VDD, V2 = 16/17 (VDD-VEE), V5 = 1/17 (VDD-VEE)
Switching Characteristics at Ta = 25±2°C, VSS = 0V, VDD = 2.7 to 5.5V
Parameter
Output delay time
Symbol
Conditions
min
typ
max
unit
tPLH
CL=15pF ; CP → DIO1, CP → DIO80
250
ns
tPHL
CL=15pF ; CP → DIO1, CP → DIO80
250
ns
No. A2124-2/7
LC79431KNE
Package Dimensions
unit:mm (typ)
3151A
23.2
0.8
20.0
51
50
100
31
14.0
81
1
17.2
80
30
0.65
0.15
0.3
0.1
3.0max
(2.7)
(0.58)
SANYO : QIP100E(14X20)
O51
O55
O54
O53
O52
O59
O58
O57
O56
O67
O66
O65
O64
O63
O62
O61
O60
O72
O71
O70
O69
O68
O76
O75
O74
O73
O80
O79
O78
O77
Pin Assignment
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
LC79431KNE
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
O50
O49
O48
O47
O46
O45
O44
O43
O42
O41
O40
O39
O38
O37
O36
O35
O34
O33
O32
O31
O30
O26
O27
O28
O29
O22
O23
O24
O25
O14
O15
O16
O17
O18
O19
O20
O21
7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
O9
O10
O11
O12
O13
1 2 3 4 5 6
O5
O6
O7
O8
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
O1
O2
O3
O4
NC
DIO80
NC
VEE
V5
V2
V1
NC
DISPOFF
VDD
RS/LS
VSS
NC
M
NC
CP
NC
DIO1
NC
NC
Top view
No. A2124-3/7
LC79431KNE
Equivalent Circuit Block Diagram
O1
O2
O3
O79
O80
V1
VDD
V2
4 Level LCD Drive Circuit
(80 bits)
V5
VSS
VEE
Level Shifter (80bits)
M
DISPOFF
Bidirectional
DIO1
I/O
Shift Register
(80 bits)
I/O
DIO80
RS/LS
CP
No. A2124-4/7
LC79431KNE
Pin Function
Pin No
Symbol
90
VDD
I/O
92
VSS
84
VEE
87
V1
86
V2
85
V5
96
CP
I
98
DIO1
I/O
82
DIO80
I/O
Supply
Function
VDD-VSS : Logic power supply
VDD-VEE : LCD drive circuit power supply
LCD drive level power supply
Supply
V1, VEE : Selected level
V2, V5 : Unselected level
Bidirectional shift register shift clock (falling edge trigger)
RS/LS
Data Transfer Direction
DIO1
DIO80
L (Shift right)
O1 → O80
IN
OUT
H (Shift left)
O80 → O1
OUT
IN
91
RS/LS
I
94
M
I
LCD drive output alternation signal
89
DISPOFF
I
O1 to O80 output controlling input pins.
1
O1
LCD drive outputs
The output levels are determined by the combination of the output the data,
The M signal, and the DISPOFF pin as shown in the table.
O
M
Data
DISPOFF
L
L
H
V2
L
H
H
VEE
H
L
H
V5
H
H
H
V1
*
*
L
V1
Output
* Don’t care (May be set to either “H” or “L”)
80
O80
81
83
88
93
95
NC
-
Must be left open.
97
99
100
No. A2124-5/7
R
R
VEE
+
+
V5
V4
Power supply circuit
Case of 1/n bias
(n-4)R
V3
V2
V2
V5
Com238
Com239
Com240
O1 to O80
CDI
CDO
LC79401KNE
VDD
#4
VSS
O1 to O80
CDI
CDO
LC79401KNE
VDD
#2
VSS
CDI
CDO
LC79401KNE
VDD
#1
VSS
LCD PANEL (320×240)
O1 to O80
Seg3
Seg2
Seg1
R
+
+
VEE
DIO1
M
CP LC79431KNE
#3
V1
Com1
Com2
Com3
Seg320
Seg319
Seg318
R
VSS
V1
DIO80
VDD
RS/LS
DISPOFF
O1 to O80
VDD
M
CP LC79431KNE
#1
V1
V2
V5
RS/LS
DISPOFF
DIO1
GND
FLM
M
LOAD
CP
DI1 to DI4
DISPOFF
Controller
R/L
DISPOFF
DI1 to DI4
M
LOAD
CP
V1
V3
V4
VEE
R/L
DISPOFF
DI1 to DI4
M
LOAD
CP
V1
V3
V4
VEE
R/L
DISPOFF
DI1 to DI4
M
LOAD
CP
V1
V3
V4
VEE
LC79431KNE
Application Example (LC79401KNE/LC79431KNE)
O1 to O80
DIO80
VDD
VSS
VEE
No. A2124-6/7
LC79431KNE
Switching Characteristics Diagram
tR
tWC
tF
0.8VDD
CP
0.2VDD
tSETUP
tHOLD
DIO1
(DIO80)
tPLH, tPHL
DIO80
(DIO1)
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PS No. A2124-7/7
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