TMS37145 Series

Digital Signal Transponder With DST80 Authentication, EEPROM, and LF Immobilizer

Catalog

Digital Signal Transponder With DST80 Authentication, EEPROM, and LF Immobilizer

Part	Frequency	Operating Temperature [Max]	Operating Temperature [Min]	Type
Texas Instruments TMS37145TEAIE	134.2 kHz	85 °C	-40 °C	RFID Transponder

Catalog

Digital Signal Transponder With DST80 Authentication, EEPROM, and LF Immobilizer

Key Features

• Low-frequency (LF) immobilizer interface75-byte EEPROM80-bit DST80 security authentication coprocessorIntegrated batteryless immobilizer interfaceHalf duplex (HDX) immobilizer communication achieves up to 4-in (10-cm) read rangeSpecial selective addressing mode allows reliable learn-in sequence80-bit authentication key lengthUp to 8-kbit/s uplink data rate5- or 3-byte challenge/response algorithmFast authentication within 42 msFast mutual authentication within 65 ms75-byte EEPROM48-bytes of available EEPROM user memory32-bit unique serial numberHigh EEPROM security and flexibilityWrite-only authentication keysPages are irreversibly lockable and protectableProtected pages programmable only through mutual authenticationEach user page is lockableResonant frequency: 134.2 kHzLow-frequency (LF) immobilizer interface75-byte EEPROM80-bit DST80 security authentication coprocessorIntegrated batteryless immobilizer interfaceHalf duplex (HDX) immobilizer communication achieves up to 4-in (10-cm) read rangeSpecial selective addressing mode allows reliable learn-in sequence80-bit authentication key lengthUp to 8-kbit/s uplink data rate5- or 3-byte challenge/response algorithmFast authentication within 42 msFast mutual authentication within 65 ms75-byte EEPROM48-bytes of available EEPROM user memory32-bit unique serial numberHigh EEPROM security and flexibilityWrite-only authentication keysPages are irreversibly lockable and protectableProtected pages programmable only through mutual authenticationEach user page is lockableResonant frequency: 134.2 kHz

Description

This security RFID transponder provides an 80-bit encryption algorithm. The 5-byte challenge and 3-byte response algorithm is backward compatible with existing TI products and provides, together with the burst length coding, short encryption telegram times. The DST80 offers 65 bytes of free programmable user data stored in nine pages, each of them lockable for programming. Each of the two 80-bit encryption keys with can be programmed with a single telegram. The DST80 comes in two versions, preprogrammed with either PWM or PPM communication formats, eliminating the need for the user to change this field. For a higher security level, the DSTAES transponder with AES-128 encryption is recommended. This security RFID transponder provides an 80-bit encryption algorithm. The 5-byte challenge and 3-byte response algorithm is backward compatible with existing TI products and provides, together with the burst length coding, short encryption telegram times. The DST80 offers 65 bytes of free programmable user data stored in nine pages, each of them lockable for programming. Each of the two 80-bit encryption keys with can be programmed with a single telegram. The DST80 comes in two versions, preprogrammed with either PWM or PPM communication formats, eliminating the need for the user to change this field. For a higher security level, the DSTAES transponder with AES-128 encryption is recommended.