HT6P20

Block Diagram

Note: Address/Data numbers are available in various combinations, refer to the functional descrip

tion.

1

May 2, 2000

Features

·

Operating voltage: 2V~12V

·

Low power consumption

·

Built-in oscillator needs only 5% resistor

·

0/2/4/8 data selectable

·

·

Easy interface with an RF or IR medium

·

One time programmable process

·

Data active: D0~D7

·

Minimal external components

·

HT6P20/A/B: 8-pin DIP/NSOP package

HT6P20/D: 16-pin DIP/NSOP package

General Description

The HT6P20 is a CMOS LSI encoder designed

for remote control system applications. It en-

codes 24 bits of information and then serially

transmits it via the DOUT pin upon receipt of

transmission enable (DATA pins: D0~D7) sig-

nals. The combination of address and data bits

of the HT6P20 is designed using one time pro-

grammable process. In addition, the chip offers

various packaging for flexible combination of

programmable address/data so as to meet vari-

ous applications. Its programmable ad-

dress/data is transmitted together with the

anti-code bits via RF or infrared transmission

medium upon receipt of a trigger signal.

Applications

·

Burglar alarm system

·

Smoke and fire alarm system

·

Garage door controllers

·

Car door controllers

·

Security system

·

Cordless telephones

·

Other remote control systems

Os c i l l a t o r

P r ogr am m i ng

Ci r c u i t

C ont r o l U n i t

A ddr es s

C o unt e r

D a ta L a t c h

VP P

SI O

Mi x e r &

Dr i v e r

DO U T

OS C 1

OS C 2

PG M

D0

D7