HT1602 Просмотр технического описания (PDF) - Holtek Semiconductor

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HT1602

40 Dot Matrix LCD Segment Driver

Holtek Semiconductor 

HT1602

40 Dot Matrix LCD Segment Driver

Features

• Operating voltage: 4.5V~5.5V

• LCD driving voltage: 8V~16V

• Applicable LCD duty cycle from 1/8 to 1/64

Applications

• Electronic dictionaries

• Portable computers

General Description

The HT1602 is a dot matrix LCD segment

driver LSI implemented in CMOS technology. It

is equipped with a 40-bit shift register (two

20-bit shift registers), a 40-bit latch (two 20-bit

latches), a 40-bit level shifter, a 40-bit 4-level

driver, and control circuits.

The HT1602 can convert serial data received

from an LCD controller to parallel data and

Block Diagram

• Suitable for various types of LCD panel

• Bias voltage adjustable from an external

source

• Remote controllers

• Calculators

then send them out as LCD driving waveforms

to the LCD panel. The HT1602 can be applied

up to 1/64 duty. Furthermore, the bias voltage

which determines the LCD driving voltage can

be optionally supplied from an external source,

thus the chip is suitable for driving various

types of LCD panel. These special features in-

crease the versatility of the chip.

1

28th Aug ’98

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