Datasheet > HT612

HT612

更新时间： 2022-11-27 00:18:12

品牌	Logo	应用领域
台湾合泰/盛群 - HOLTEK		解码器
页数	文件大小	规格书
14页	839K
描述
318 Series of Decoders

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数据手册

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HT612 数据手册

3 Series of Decoders

Features

•

Operating voltage: 2.4V~12V

Low power and high noise immunity CMOS

technology

Trinary address setting

Two times of receiving check

Built-in oscillator needs only a 5% resistor

Valid transmission indictor

Easily interface with an RF or an infrared

transmission medium

•

Low standby current

Capable of decoding 18 bits of information

Pairs with HOLTEK’s 3¹⁸series of encoders

8~18 address pins

•

Minimal external components

0~8 data pins

Applications

•

Burglar alarm system

Smoke and fire alarm system

Garage door controllers

Car door controllers

Car alarm system

Security system

Cordless telephones

Other remote control systems

General Description

The 3¹⁸decoders are a series of CMOS LSIs for

remote control system applications. They are

paired with the 3¹⁸series of encoders. For

proper operation a pair of encoder/decoder pair

with the same number of address and data

format should be selected (refer to the en-

coder/decoder cross reference tables).

The 3¹⁸series of decoders receives serial ad-

dress and data from that series of encoders that

are transmitted by a carrier using an RF or an

IR transmission medium. It then compares the

serial input data twice continuously with its

local address. If no errors or unmatched codes

are encountered, the input data codes are de-

coded and then transferred to the output pins.

The VT pin also goes high to indicate a valid

transmission.

The 3¹⁸decoders are capable of decoding 18 bits

of information that consists of N bits of address

and 18–N bits of data. To meet various applica-

tions they are arranged to provide a number of

data pins whose range is from 0 to 8 and an

address pin whose range is from 8 to 18. In

addition, the 3¹⁸decoders provide various com-

binations of address/data number in different

packages.

Selection Table

F u n ct ion

Da ta

Ad d r ess

No.

VT Oscilla tor

Tr igger

P a ck a ge

Item

HT602L

No. Typ e

√

RC oscillator DIN active “Hi” 20 DIP/20 SOP

HT604L

HT605L

HT611

—

2nd Oct ’97

12 3 4 5 6 7...14

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