HT1602L datasheet(1/7 Pages) HOLTEK

Part #	HT1602L

Description	40 Dot Matrix LCD Segment Driver

PDF	7 Pages

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Manufacturer	HOLTEK [Holtek Semiconductor Inc]

Direct Link	http://www.holtek.com

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HT1602L

40 Dot Matrix LCD Segment Driver

Block Diagram

1

September 1, 2000

Features

·

Operating voltage: 2.7V~5.2V

·

LCD driving voltage: 3.0V~5.0V

·

Applicable LCD duty from 1/8 to 1/16

·

Suitable for various types of LCD panel

·

Bias voltage adjustable from an external

source

General Description

The HT1602L is a dot matrix LCD segment

driver LSI implemented in CMOS technology.

The chip contains 40-bit shift register (two

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

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

driver and control circuits.

The HT1602L can convert serial data received

from an LCD controller parallel data and then

send them out as LCD driving waveforms to the

LCD panel. The chip is applicable up to 1/16

duty. Furthermore, the bias voltage which de-

termines the LCD driving voltage can be op-

tionally supplied from an external source, thus

the chip is suitable for driving various LCD

panel. These special features increase the ver-

satility of the chip.

Applications

·

Interface with HT163A

·

Electronic dictionaries

·

Portable computers

·

Remote controllers

·

Calculators

DO 1 9

40- bi t

Lev el

Sh i f t e r

20- bi t Lat c h

20- bi t S h i f t

R egi s t er 1

DO 3 9

AL T

V3 V2

40- bi t

4 Le v e l

Dr i v e r

20- bi t Lat c h

20- bi t S h i f t

R egi s t er 2

VD D

VS S

Y3 9

Y0

V5

DI0

DI2 0

CL K

LO A D

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