Datasheet > HT6222(24SOP)

HT6222(24SOP)

更新时间： 2024-11-09 23:56:43

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描述
Consumer IC

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数据手册

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HT6222(24SOP) 数据手册

HT6221/HT6222

Multi-Purpose Encoders

Features

Operating voltage: 1.8V~3.5V

Three double-active keys

DOUT with 38kHz carrier for IR medium

Maximum active keys

Low standby current

HT6221: 32 keys

HT6222: 64 keys

Minimum transmission word: one word

Low power and high noise immunity CMOS technol-

455kHz ceramic resonator or crystal

ogy

16-bit address codes

HT6221: 20-pin SOP package

8-bit data codes

HT6222: 24-pin SOP package

PPM code method

Applications

Television and video cassette recorder controllers

Car door controllers

Burglar alarm systems

Car alarm systems

Smoke and fire alarm systems

Security systems

Garage door controllers

Other remote control systems

General Description

The HT6221/HT6222 are CMOS LSI encoders designed

for use in remote control systems. They are capable of

encoding 16-bit address codes and 8-bit data codes.

Each address/data input can be set to one of the two logic

states, 0 and 1.

The HT6221/HT6222 contain 32 keys (K1~K32) and 64

keys (K1~K64), respectively. When one of the keys is

triggered, the programmed address/data is transmitted

together with the header bits via an IR (38kHz carrier)

transmission medium.

Block Diagram

U T

L E

Rev. 1.30

September 5, 2001

12 3 4 5 6 7...11

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