ELM622

Infrared Remote Interpreter

Description

The ELM622 is an interface circuit for converting infrared control codes to an eight bit serial format. This device is well suited to applications that only require occasional input from humans, or where a hidden interface is desired.

When connected to a standard infrared receiver module, the ELM622 continually scans the data stream for Sony® television control codes. If detected, the codes are retransmitted serially, with hardware handshaking. This data can then be used directly by logic circuits, or suitably buffered and transmitted on a standard RS232 connection.

For convenience, some of the control codes are translated to their ASCII equivalents before retransmission, allowing direct display of the common control signals on an ASCII terminal.

Many products that currently rely on a keyboard for input can benefit from the small size and simplicity that an ELM622 provides, and several others are likely to benefit from the at-a-distance control that this circuit offers.

Applications

Alternative to keyboard interface
Hidden security system control
Non-contact device control for safety
Home automation receiver

Features

Low power CMOS design – typically 1mA at 5V
RS232 formatted output at 9600 baud
Hardware handshaking provided
Signal received output for visual feedback
Simple interface to standard receiver modules
Works with universal TV remote transmitters
Reset output on command
High current drive outputs – up to 25 mA

Connection Diagram

( PDIP or SOIC, top view )
ELM622 connection diagram

Block Diagram

ELM622 block diagram

Downloads

The ELM622 data sheet (ver A, 30K):

Quantity Pricing

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

1-9

$9.00

10-99

$7.50

100-999

$6.92

1000+

$6.43

All prices are in Canadian dollars. We use the total number purchased (ELM622P + ELM622SM) 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.