Overview

The LC79430KNE is a large-scale dot matrix LCD common driver LSI. The LC79430KNE 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 LC79430KNE 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

• On-chip 80-bit bidirectional shift register (supports 40-bit × 2 division)

• Supports single mode (80-bit shift register) and dual mode (40-bit × 2 shift register) applications

(1) O1 → O80 Single mode

(2) O80 → O1

(3) O1 → O40 and O41 → O80 Dual mode

(4) O80 → O41 and O40 → O1

All four of the shift direction selection listed above all supported

• 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)