Beskrivning
KEELOQ Code Hopping Decoder
The Microchip Technology Inc. HCS515 is a code hopping decoder designed for secure Remote Keyless Entry (RKE) systems. The HCS515 utilizes the patented 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 and access control systems. The HCS515 can be used as a stand-alone decoder or in conjunction with a microcontroller.
Features
Security
* Encrypted storage of manufacturer’s code
* Encrypted storage of encoder decryption keys
* Up to seven transmitters can be learned code hopping technology
* Normal and secure learning mechanisms
Operating * 4.5V – 5.5V operation
* Internal oscillator
* Auto bit rate detection
Other
* Stand-alone decoder * Internal EEPROM for transmitter storage
* Synchronous serial interface
* 1 Kbit user EEPROM
Applications
* Automotive remote entry systems
* Automotive alarm systems
* Automotive immobilizers
* Gate and garage openers
* Electronic door locks
* Identity tokens
* Burglar alarm system
