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| LC79400D Datasheet, PDF (2/8 Pages) Sanyo Semicon Device – Dot Matrix LCD Driver | |||
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LC79400D
Allowable Operating Ranges at Ta = â20 to +75°C, VSS = 0 V
Parameter
Symbol
Conditions
min
typ
max
Unit
Supply voltage (logic)
Supply voltage (LCD)
Input high-level voltage
VDD
VDD - VEE
VIH
*2, *3
DI1 to 4, CP, LOAD, CDR, CDL
R/L, M, DISP OFF
4.5
12
0.8 VDD
5.5 V
32 V
V
Input low-level voltage
DI1 to 4, CP, LOAD, CDR, CDL
VIL
R/L, M, DISP OFF
0.2 VDD
V
CP (shift clock)
fCP
CP
3.0 MHz
CP (pulse width)
fWC
CP
100
ns
LOAD pulse width
tWL
LOAD
100
ns
Setup time
tSETUP DI1 to 4 â CP
80
ns
Hold time
tHOLD DI1 to 4 â CP
80
ns
CP â LOAD
tCL1
tCL2
CP â LOAD
CP â LOAD
0
ns
100
ns
LOAD â CP
tLC
LOAD â CP
63
ns
tR
CP
50 ns
Rise/Fall time
tF
CP
tRL
LOAD
50 ns
50 ns
tFL
LOAD
50 ns
Note:2. The voltages V1, V3, V4, V7, VDD and VEE must obey the relationships: VDD ⥠V1 > V3 > V4 > VEE, VDD â V3 ⤠7V, V4 â VEE â¤
7V.
3. When applying power, apply power to the LCD drive block after applying power to the logic block or apply power to both the blocks
simultaneously. When turning off power, turn off power to the logic block after turning off power to the LCD drive block or turn
off power to both the blocks simultaneously.
Electrical Characteristics at Ta = 25±2°C, VSS = 0 V, VDD = 5 V±10%
Parameter
Symbol
Conditions
min
typ
Input high-level current
IIH
VIN = VDD; LOAD, CP, CDR (CDL),
R/L, DI1 to DI4, M, DISP OFF
Input low-level current
IIL
VIN = VSS; LOAD, CP, CDR (CDL),
â1
R/L, DI1 to DI4, M, DISP OFF
Output high-level voltage
Output low-level voltage
Driver on resistor
VOH
VOL
RON1
RON2
IOH = â400 µA; CDL (CDR)
IOL = 400 µA; CDL (CDR)
VDD â VEE = 30 V,  VDE â VO  = 0.5 V*4;
O1 to O80
VDD â VEE = 20 V,  VDE â VO  = 0.5 V*4;
O1 to O80
VDD â 0.4
1.5
2.0
Standby current dissipation
IST
CDR (CDL) = VDD, VDD â VEE = 30 V
CP = 3.0 MHz, no-load output: VSS
Operation current dissipation
ISS*5
ISS*6
VDD â VEE = 30 V, CP = 3 MHz,
LOAD = 14 kHz, M = 35 Hz; VSS
VDD â VEE = 30 V, CP = 3 MHz,
LOAD = 14 kHz, M = 35 Hz; VEE
Input capacity
CI
f = 3.0 MHz; CP
5
Note:4. VDE = V1 or V3 or V4 or VEE, V1 = VDD, V3 = 15/17 (VDD-VEE), V4 = 2/17 (VDD-VEE)
5. ISS current flows from VDD to VSS.
6. IEE current flows from VDD to VEE.
Switching Characteristics at Ta = 25±2°C, VSS = 0 V, VDD = 5 V±10%
Parameter
Output delay time
Symbol
tD
Conditions
Load = 15 pF; CDR (CDL)
min
typ
max
Unit
1
µA
µA
V
0.4
V
3.0
kâ¦
3.5
kâ¦
200
µA
4.0
mA
0.1
mA
pF
max
Unit
200
ns
No. 4346-2/8
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