Datasheet > HT12A_03

HT12A_03

更新时间： 2024-02-09 15:26:05

品牌	Logo	应用领域
台湾合泰/盛群 - HOLTEK		编码器
页数	文件大小	规格书
14页	165K
描述
212 Series of Encoders

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中文翻译

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数据手册

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HT12A_03 数据手册

HT12A/HT12E

2¹²Series of Encoders

Features

Operating voltage

Minimum transmission word

2.4V~5V for the HT12A

Four words for the HT12E

2.4V~12V for the HT12E

One word for the HT12A

Low power and high noise immunity CMOS

Built-in oscillator needs only 5% resistor

Data code has positive polarity

technology

Low standby current: 0.1mA (typ.) at V_DD=5V

Minimal external components

Pair with Holtek¢s 2¹²series of decoders

HT12A with a 38kHz carrier for infrared transmission

medium

18-pin DIP, 20-pin SOP package

Applications

Burglar alarm system

Car alarm system

Smoke and fire alarm system

Security system

Garage door controllers

Cordless telephones

Other remote control systems

Car door controllers

General Description

The 2¹²encoders are a series of CMOS LSIs for remote

control system applications. They are capable of encod-

ing information which consists of N address bits and

12-N data bits. Each address/data input can be set to

one of the two logic states. The programmed ad-

dresses/data are transmitted together with the header

bits via an RF or an infrared transmission medium upon

receipt of a trigger signal. The capability to select a TE

trigger on the HT12E or a DATA trigger on the HT12A

further enhances the application flexibility of the 2¹²se-

ries of encoders. The HT12A additionally provides a

38kHz carrier for infrared systems.

Selection Table

Function

Address Address/

Data No.

Carrier

Output

Negative

Polarity

Data No. Oscillator Trigger

Package

No.

Part No.

455kHz

HT12A

D8~D11

38kHz

18DIP, 20SOP

resonator

HT12E

oscillator

Note: Address/Data represents pins that can be either address or data according to the application requirement.

Rev. 1.10

January 24, 2003

12 3 4 5 6 7...14

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