EW
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Radiometrix
Hartcran House, 231 Kenton Lane, Harrow, HA3 8RP, England
Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233
Issue: 1, 28 February 2008
KRX416
Code-hopping decoder with 4 outputs
Code-
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.
Figure 1: KRX416 in 18 pin DIL package
Features
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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
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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 Ltd
KRX416
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RADIOMETRIX [ RADIOMETRIX LTD ]
