Radiometrix Ltd

KRX416

page 1

Features

•

Operating voltage (temperature):

4.5V-5.5V (-40°C to +85°C)

•

Draws <2mA without external load

•

4 digital outputs (on/off)

•

Learn input pin (activate to store a transmitter identity)

•

Learn output pin (indication of a Learnt transmitter)

•

Mode select pin – choice of two output modes

•

Internal non-volatile memory for learning up to 16 different transmitters

•

Hop-code decryption ensures that only valid transmissions are acted upon

•

Manchester decoding at 1250bps (+25% -50%)

•

Suitable for use with Radiometrix FM radio-receiver modules e.g. RX2A

•

Internal clock – no external oscillator components needed

•

Internal supply monitoring (brown-out = self-reset)

•

Minimum external component requirement

•

Compatible with Radiometrix code-hopping transmitters, e.g. KTX2

Applications

•

Security and Alarm systems

•

Status reporting and monitoring systems

•

RF Remote control systems

•

Industrial controls

•

HVAC controls

•

Door entry systems

•

Simple On/Off switching

Radiometrix

Hartcran House, 231 Kenton Lane, Harrow, HA3 8RP, England

Issue: 1, 28 February 2008

KRX416

Key-code Receiver 416 is a single IC

solution for decrypting and decoding

Radiometrix

code-hopping

transmitters. The device will retain

the identities of up to 16 code-hopping

transmitters, even when the power

supply is removed. It is specifically

designed to be used in RF keyless

remote control applications and is

available in 18pin SO and DIL

packages.

Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233

NE

W

Code

Code

Code

Code----hopping decoder with 4 outputs

hopping decoder with 4 outputs

hopping decoder with 4 outputs

hopping decoder with 4 outputs

Figure 1: KRX416 in 18 pin DIL package