HCS512-I/SO SO-18 Keeloq code hopping decoder

KEELOQ Code Hopping Decoder

The Microchip Technology Inc. HCS512 is a code hopping decoder designed for secure Remote Keyless Entry (RKE) systems. The HCS512 utilizes the patented KEELOQ code hopping system and high security learning mechanisms to make this a canned solution when used with the HCS encoders to implement a unidirectional remote keyless entry system.

Features

Security

* Secure storage of Manufacturers Code

* Secure storage of transmitters keys

* Up to four transmitters can be learned

* KEELOQ code hopping technology

* Normal and secure learning mechanisms

Operating

* 4.0V 6.0V operation

* 4 MHz external RC oscillator

* Learning indication on LRNOUT

* Auto baud rate detection

* Power saving SLEEP mode

Other

* Stand-alone decoder

* On-chip EEPROM for transmitter storage

* Four binary function outputs15 functions

Applications

* Automotive remote entry systems

* Automotive alarm systems

* Automotive immobilizers

* Gate and garage openers

* Electronic door locks

* Identity tokens

* Burglar alarm systems