Description

The HD61830/HD61830B is a dot matrix liquid crystal graphic display controller LSI that stores the display data sent from an 8-bit microcontroller in the external RAM to generate dot matrix liquid crystal driving signals.

Features

• Dot matrix liquid crystal graphic display controller

• Display control capacity

- Graphic mode: 512k dots (216 bytes)

- Character mode: 4096 characters (212 characters)

• Internal character generator ROM: 7360 bits

- 160 types of 5 × 7 dot characters

- 32 types of 5 × 11 dot characters Total 192 characters

- Can be extended to 256 characters (4 kbytes max.) with external ROM

• Interfaces to 8-bit MPU

• Display duty cycle (can be selected by a program) Static to 1/128 duty cycle

• Various instruction functions

- Scroll, cursor on/off/blink, character blink, bit manipulation

• Display method: Selectable A or B types

• Internal oscillator (with external resistor and capacitor) HD61830

• Operating frequency

- 1.1 MHz HD61830

- 2.4 MHz HD61830B

• Low power dissipation

• Power supply: Single +5 V ±10

• CMOS process