¡ Semiconductor

MSM9004-01/02

1/15

¡ Semiconductor

MSM9004-01/02

1/3, 1/4 DUTY LCD DRIVER WITH 4-DOT COMMON DRIVER AND 49-DOT SEGMENT DRIVER

GENERAL DESCRIPTION

The MSM 9004-01/02 is an LCD driver for dynamic display with a 1/3 or 1/4 duty select function.

When the 1/3 duty is selected, it can display up to 147 segments, and when the 1/4 duty is

selected, up to 196 segments.

FEATURES

: 5.0 V

± 10%

: 3.7 V to 5.5 V

• Serial transfer clock frequency

: 2 MHz max.

• LCD output resistance

Common driver

: 20 kW

Segment driver

: 60 kW

• Display duty

: 1/3, 1/4 selectable

• LCD segment output

: 49

• Maximum number of display segments

For 1/3 duty

: 147 segments max.

For 1/4 duty

: 196 segments max.

• Display blanking terminal attached

• Operating temperature range

: –40 to +85˚C

• Interface with microcontroller

MSM9004-01

: LOAD, DATA, CLOCK1, CLOCK2

MSM9004-02

: LOAD, DATA, CLOCK2

• System clock

MSM9004-01

: external input

MSM9004-02

: internal oscillation circuit (external resistor

and capacitor required)

• Package:

64-pin plastic QFP (QFP64-P-1414-0.80-BK)

(Product name : MSM9004-01GS-BK)

(Product name : MSM9004-02GS-BK)

• Comparison of device codes and functions

E2B0014-27-Y2

Function

MSM9004-01

Device code

MSM9004-02

MSM9004-03

MSM9004-04

LCD segment

50

49

Duty

1/3

1/4

External input

Internal oscillation

circuit

System clock

output

—

—

—

—

—

—

—

—

—

—

This version: Nov. 1997

Previous version: Mar. 1996