HT12E20SOP Holtek, HT12E20SOP Datasheet

HT12E20SOP

Manufacturer Part Number

HT12E20SOP

Description

SOP20

Manufacturer

Holtek

Datasheet

1.HT12E20SOP.pdf (14 pages)

Specifications of HT12E20SOP

Date_code

09+

Current page: 1 of 14
Download datasheet (167Kb)

Features

Applications

General Description

The 2

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

Selection Table

Note:

Rev. 1.10

Part No.

HT12A

HT12E

Operating voltage

Low power and high noise immunity CMOS

technology

Low standby current: 0.1 A (typ.) at V

HT12A with a 38kHz carrier for infrared transmission

medium

Burglar alarm system

Smoke and fire alarm system

Garage door controllers

Car door controllers

2.4V~5V for the HT12A

2.4V~12V for the HT12E

Function Address

encoders are a series of CMOS LSIs for remote

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

No.

Address/

Data No.

Data No. Oscillator Trigger

=5V

resonator

oscillator

455kHz

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 2

ries of encoders. The HT12A additionally provides a

38kHz carrier for infrared systems.

D8~D11

Minimum transmission word

Built-in oscillator needs only 5% resistor

Data code has positive polarity

Minimal external components

Pair with Holtek s 2

18-pin DIP, 20-pin SOP package

Car alarm system

Security system

Cordless telephones

Other remote control systems

Four words for the HT12E

One word for the HT12A

Series of Encoders

Carrier

Output

38kHz

HT12A/HT12E

series of decoders

Negative

Polarity

18DIP, 20SOP

January 24, 2003

Package

se-

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