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HCS410-ST Datasheet(PDF) 1 Page - Microchip Technology |
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HCS410-ST Datasheet(HTML) 1 Page - Microchip Technology |
1 / 36 page © 1997 Microchip Technology Inc. Preliminary DS40158C-page 1 M HCS410 FEATURES Security • Two programmable 64-bit encoder keys • 16/32-bit bi-directional challenge and response using one of two keys • 69-bit transmission length • 32-bit unidirectional code hopping, 37-bit nonencrypted portion • Encoder keys are read protected • Programmable 28/32-bit serial number • 60/64-bit, read-protected seed for secure learning • Three IFF encryption algorithms • Delayed increment mechanism • Asynchronous transponder communication • Queuing information transmitted Operating • 2.0V to 6.6V operation, 13V encoder only operation • Three switch inputs [S2, S1, S0]—seven functions • Batteryless bi-directional transponder • Selectable baud rate and code word blanking • Automatic code word completion • Battery low signal transmitted • Nonvolatile synchronization • PWM or Manchester RF encoding • Combined transmitter, transponder operation • Anti-collision of multiple transponders • Passive proximity activation • Device protected against reverse battery • Intelligent damping for high Q LC-circuits Other • 37-bit nonencrypted part contains 28/32-bit serial number, 4/0-bit function code, 1-bit battery low, 2-bit CRC, 2-bit queue • Simple programming interface • On-chip tunable RC oscillator ( ±10%) • On-chip EEPROM • 64-bit user EEPROM in transponder mode • Battery-low LED indication • SQTP serialization quick-time programming • 8-pin PDIP/SOIC/TSSOP and die Typical Applications • Automotive remote entry systems • Automotive alarm systems • Automotive immobilizers • Gate and garage openers • Electronic door locks (Home/Office/Hotel) • Burglar alarm systems • Proximity access control PACKAGE TYPES BLOCK DIAGRAM S0 S1 S2/LED LC1 VDD LC0 PWM GND 18 2 3 4 7 6 5 PDIP, SOIC S2/LED LC1 GND PWM 1 2 3 4 8 7 6 5 S1 S0 VDD LC0 TSSOP Oscillator Configuration Register Power Control Wakeup Logic Address DecodingEEPROM Debounce Control and Queuer LED Control PWM Driver PPM Detector PWM PPM Manch. Encoder VDD S0 S1 S2 LCI0 LCI1 PWM Code Hopping Encoder and Transponder* KEELOQ is a registered trademark of Microchip Technology Inc. *Code hopping encoder patents issued in Europe, U.S.A., R.S.A.—U.S.A.: 5,517,187; Europe: 0459781 |
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