LSI

LS3321

256 dot LCD micro-controller

Features :

* 12 Input/Output pad.

* Direct drive buzzer output.

* 3072x12 bit ROM.

* 176x4 bit of RAM.

* 32x4, x5, x6, x7 or 32x8 LCD segment.

* 1/4 LCD bias.

* 32768 Crystal/RC oscillator bonding option.

* Single 1.5V operation.

* Low cost and low price.

General Description

The LS3321 is a micro-controller for LCD application. It has an internal ROM size of 3Kx12bit.

A 176x4 bit of RAM, 32x4, x5, x6, x7 or x8 LCD segment with 1/4 bias. It has 12 I/O (mask option)

pad. It directly drive a buzzer output. The buzzer driver can also be used as general purpose I/O by

mask option.

The system oscillator can be R/C or 32kHz Crystal oscillator.

It is suitable for

timer/calendar/controller function.