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TMS37145 - Digital Signature Transponder

General Description

This security RFID transponder provides an 80-bit encryption algorithm.

The 5-byte challenge and 3byte response algorithm is backward compatible with existing TI products and provides, together with the burst length coding, short encryption telegram times.

Key Features

  • 1 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.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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TMS37145 SCBS879A – MAY 2012 – REVISED JANUARY 2020 Digital Signature Transponder With Integrated DST80 Authentication, EEPROM, and LF Immobilizer 1 Features •1 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-