HCS515

M FEATURES Security Encrypted storage of manufacturer’s code Encrypted storage of encoder decryption keys Up to seven transmitters can be learned KEELOQ code hopping technology Normal and secure learning mechanisms HCS515 Code Hopping Decoder PACKAGE TYPE PDIP, SOIC NC NC Vdd S0 S1 MCLR NC 1 2 3 4 5 6 7 14 13 12 11 10 9 8 NC NC Vss RF_IN S_CLK S_DAT NC HCS515 Operating 3.0V—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 14-pin DIP/SOIC package BLOCK DIAGRAM RFIN 67-bit Reception Register DECRYPTOR EE_DAT Internal EEPROM CONTROL EE_CLK S_DAT S_CLK S0 S1 MCLR Typical Applications Automotive remote entry systems Automotive alarm systems Automotive immobilizers Gate and garage openers Electronic door locks Identity tokens Burglar alarm systems OSCILLATOR Compatible Encoders HCS200, HCS300, HCS301, HCS360, HCS361, HCS410 (PWM Mode) DESCRIPTION The Microchip Technology Inc. HCS515 is a code hopping decoder designed for secure Remote Keyless Entry (RKE) systems. The HCS515 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 and access control systems. The HCS515 can be used as a stand-alone decoder or in conjunction with a microcontroller. The manufacturer’s code, encoder dec...