Datasheet > ELM339

ELM339

更新时间： 2024-11-22 06:56:35

品牌	Logo	应用领域
ELM		遥控远程控制遥控器
页数	文件大小	规格书
4页	30K
描述
INFRARED REMOTE CONTROL

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ELM339 数据手册

ELM339

Infrared Remote Control

Description

Features

The ELM339 is a complete remote control

• Low power CMOS design - typically 1mA at 5V

• Three separate outputs

decoder in an 8 pin package. With the addition of a

standard infrared receiver module, three individual

outputs can be simultaneously controlled using a

television remote control transmitter.

• Pulse output for momentary controls

• Signal received output for visual feedback

• Easy interface to standard receiver modules

• Works with universal TV remote transmitters

• High current drive outputs - up to 25 mA

This circuit responds to Sony™ television control

codes, chosen because most universal remotes

default to them when initially powered up. The

ELM339 continuously monitors the stream of data

from an infrared receiver module looking for these

Sony type remote control codes. If an appropriate

three digit code is detected, the selected output

either turns on, turns off, or switches its state.

Connection Diagram

PDIP and SOIC

(top view)

One of the outputs can be configured to provide

a 250msec pulse output, if desired. This could be

useful for interfacing to devices that expect a

momentary input, such as garage door controls,

alarm test buttons, and some appliances.

VDD

Out5

VSS

Applications

Out3

LED

IRRx

Out7

• Basic home automation systems

• Remote smoke alarm test initiator

• Garage door controller

Pulse7

• Lamp controller

Block Diagram

Output

Driver

Out3

Data

Decoder

IRRx

Output

Driver

Out5

Out7

LED

Output

Driver

Pulse7

ELM339DSA

Elm Electronics – Circuits for the Hobbyist

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