GENERAL DESCRIPTION

The MSM6786 is a dynamic display LCD driver and can be switched to 1/3 or 1/4 duty. It can dis-play up to 116 segments with 1/4 duty and up to 87 segments with 1/3 duty. It can also drive one LED directly. The built-in 5·6 key circuit allows input through a keyboard, and minimizes the number of wires between the front panel and CPU.

FEATURES

• Power suppy voltage : 5V±10

• Operating temperature : –40 to +85°C

• 29-output segment driver

1/4 duty dynamic drive : Up to 116 segments can be displayed

1/3 duty dynamic drive : Up to 87 segments can be displayed

• One LED can be driven directly (IO=–15mA max)

• Built-in 5·6 key scan circuit allows reading of the operation status of up to 30 switches.

• Interface with CPU is implemented by LOAD, DATA I/O and CLOCK in serial method.

• Built-in RC oscillator for LCD AC drive

• Built-in voltage dividing resistor for bias voltage generation

• Package:

56-pin plastic QFP (QFP56-P-910-0.65-2K) (Product name : MSM6786GS-2K)