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DATA SHEET
Digital Signature Transponder With Integrated DST80 Authentication, EEPROM, and LF Immobilizer
1 Features
- Low-frequency (LF) immobilizer interface
- 75-byte EEPROM
- 80-bit DST80 security authentication coprocessor
- Integrated batteryless immobilizer interface
- Half duplex (HDX) immobilizer communication achieves up to 4-in (10-cm) read range
- Special selective addressing mode allows reliable learn-in sequence
- 80-bit authentication key length
- Up to 8-kbit/s uplink data rate
- 5- or 3-byte challenge/response algorithm
- Fast authentication within 42 ms
- Fast mutual authentication within 65 ms
- 75-byte EEPROM
- 48-bytes of available EEPROM user memory
- 32-bit unique serial number
- High EEPROM security and flexibility
- Write-only authentication keys
- Pages are irreversibly lockable and protectable
- Protected pages programmable only through mutual authentication
- Each user page is lockable
- Resonant frequency: 134.2 kHz
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