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¡ Semiconductor

MSM6775

GENERAL DESCRIPTION

The MSM6775 is an LCD driver for dynamic display providing 3-duty-switchable pins (1/3, 1/

4 and 1/5 duty). It can directly drive LCDs of up to 400, 320 and 240 segments when 1/5, 1/4

and 1/3 duty are selected, respectively.

FEATURES

• Operating range

: 2.7 to 5.5V

: –40 to +85

°C

: 3.5 to 5.5V

• Segment output

: 80 pins

1/5 duty

: Up to 400 segments can be displayed.

1/4 duty

: Up to 320 segments can be displayed.

1/3 duty

: Up to 240 segments can be displayed.

• Serial transfer clock frequency

: 4MHz

• Serial interface with CPU

: Through three input pins (DATA, LOAD, and

CLOCK)

• One-to-one corresponcence between input data and its output

When input data is at "H" level

: Display goes on.

When input data is at "L" level

: Display goes off.

• Built-in oscillator circuit for COMMON signals

• The entire display can be turned off. (BLANK pin)

• Package:

100-pin plastic TQFP (TQFP100-P-1414-0.50-K) (Product name : MSM6775TS-K)

¡ Semiconductor

MSM6775

1/3, 1/4, 1/5 DUTY LCD DRIVER WITH 5-DOT COMMON DRIVER AND 80-DOT

SEGMENT DRIVER

E2B0012-27-Y2

This version: Nov. 1997

Previous version: Mar. 1996