MSM6544

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1/12

GENERAL DESCRIPTION

The MSM6544 is a 42-segment duplex driver which can drive the LCD panel up to a maximum

of 84 segments.

Since the package is a 56-pin small QFP, an LCD module can be compactly configured. An

internal RC oscillator is provided for ease of use.

FEATURES

• LCD driving voltage

• Operating temperature

: –40 to +85

°C

• Applicable LCD panel

: 1/2 duty, 84 segments (Max)

• Data transmitting clock

: 4 MHz (Max)

• Package:

56-pin plastic QFP (QFP56-P-910-0.65-2K) (Product name : MSM6544GS-2K)

BLOCK DIAGRAM

BLANK

GND

LOAD

DATA

CLOCK

OSC-IN

OSC-C

OSC-R

COM-A

COM-B

42-BIT SI/PO

COMMON

DRIVER

1/32

D Q

OSC

<A>

42-BIT LATCH

<B>

42-BIT LATCH

42-DOT SEGMENT DRIVER

42-BIT SELECTOR

LL

¡ Semiconductor

MSM6544

42-DOT LCD DRIVER

E2B0009-27-Y2

This version: Nov. 1997

Previous version: Mar. 1996