ELM339

Infrared Remote Control

Description

The ELM339 is a complete remote control 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.

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.

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.

Applications

Basic home automation systems
Remote smoke alarm test initiator
Garage door controller
Lamp controller

Features

Low power CMOS design – typically 1mA at 5V
Three separate outputs
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

Connection Diagram

( PDIP or SOIC, top view )
ELM339 connection diagram

Block Diagram

ELM339 block diagram

Downloads

The ELM339 data sheet (ver A, 27K):

Quantity Pricing

The following are the unit prices, as you vary the quantity purchased:

1-9

$8.50

10-99

$7.08

100-999

$6.54

1000+

$6.07

All prices are in Canadian dollars. We use the total number purchased (ELM339P + ELM339SM) for the calculation.

Purchase

Select the desired integrated circuit package type, then the quantity desired, before adding it to your shopping cart. Quantity discounts will be applied as appropriate.