Ordering number : EN5279B
CMOS LSI
LC4100C
LCD Dot Matrix Common Driver
for STN Displays
Overview
The LC4100C is a common driver for large-scale dot
matrix LCD panels. It includes a 240-bit bidirectional shift
register and 4-level LCD driver circuits. The number of
bits can be further increased by using the provided input
and output pins to connect multiple LC4100Cs in cascade.
The LC4100C and LC4101C form a large-screen LCD
panel driver chip set.
Features
• Fabricated in a CMOS (P-sub) high-voltage process.
• LCD drive voltage: 36 V
• Logic system power-supply voltage: 3.0 to 5.5 V
• fload max: 1 MHz
• Slim chip (output pads are concentrated on one of the
longer sides)
• 240 outputs (pad pitch: 70 µm)
• Bidirectional shift register
• The shift register can be split into two 120-bit registers.
• DISPOFF function that locks the drive voltages output
to the LCD at fixed levels.
• Display duty: 1/160 to 1/480
Specifications
Absolute Maximum Ratings at Ta = 25°C ± 2°C, standard VSS, VEEn = VEE1 or VEE2, VSSn = VSS1 or VSS2
Parameter
Symbol
VDD
Conditions
Ratings
–0.3 to +7
Unit
V
Supply voltage
Input voltage
VEEn
VSSn
VIN
–0.3 to +40
–0.3 to +0.3
V
V
LOAD, L/R, DISP, DF, EIO1, EIO3, EIO4
–0.3 to VDD + 0.3
VEE – 7 to VDD + 0.3
–0.3 to VSS + 7
–0.3 to +0.3
V
V0, V1
V4
V
V
V5
V
Operating temperature
Storage temperature
Topr
Tstg
–20 to +75
°C
°C
–55 to +125
Note: The voltages V1, V2, V3, V4, and V5 must obey the relationships VEEn + 0.3 ≥ V0 ≥ V1 ≥ VEE – 7, and 7 ≥ V4 ≥ V5 ≥ VSSn – 0.3. (Unit: V)
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