Overview

The LC75811E and LC75811W are 1/8 to 1/10 duty dot matrix LCD display controller/drivers that supports the display of characters, numbers, and symbols. In addition to generating dot matrix LCD drive signals based on data transferred serially from a microcontroller, the LC75811E and LC75811W also provide on-chip character display ROM and RAM to allow display systems to be implemented easily.

Features

• Controls and drives a 5 × 7, 5 × 8, or 5 × 9 dot matrix LCD.

• Supports accessory display segment drive (up to 60

segments)

• Display technique: 1/8 duty 1/4 bias drive (5 × 7 dots)

1/9 duty 1/4 bias drive (5 × 8 dots)

1/10 duty 1/4 bias drive (5 × 9 dots)

• Display digits: 12 digits × 1 line (5 × 7 dots),

11 digits × 1 line (5 × 8 or 5 × 9 dots)

• Display control memory

CGROM: 240 characters (5 × 7, 5 × 8, or 5 × 9 dots)

CGRAM: 16 characters (5 × 7, 5 × 8, or 5 × 9 dots)

ADRAM: 12 × 5 bits

DCRAM: 48 × 8 bits

• Instruction function

Display on/off control

Display shift function

• Provides a backup function based on low power modes.

• Serial data input supports CCB format communication

with the system controller.

• Independent LCD drive block power supply VLCD

• Provides a RES pin for LSI internal initialization

• RC oscillator circuit