AD Tagmicro-TxFN

Ultra low power 8-bit microcontroller and fractional-N RF transmitter

Industry segment: Automotive, Car Access

The Avery Dennison Smartrac Tagmicro-TxFN is designed for immobilizer and battery operated remote keyless entry (RKE) applications. The transponder part is protocol and instruction-set compatible with the existing Avery Dennison Smartrac products and works even without a battery. Additional commands for microcontroller communication are also implemented. A powerful fractional-N based UHF-transmitter circuit is built in enabling a single chip application.

The microcontroller offers brownout, power-check & glitch detection functions to ensure reliable operation at under voltage conditions. Each of the 16 I/Os are freely programmable. A trimmed RC oscillator of up to 10MHz frequency allows stable operation without need for external resonator. Featuring an 8-bit RISC architecture specially designed for very low power consumption, Tagmicro-TxFN executes up to 5 MIPS without compromising battery-lifetime. The battery management feature allows batteries to be recharged by a 125 kHz magnetic field.

Technical Features
Chip	ASIC 8k	ASIC 4k
Frequency Band	LF 125 kHz / UHF 315-434-868-915 MHz
Hard Tag Dimensions	5 x 5 mm / 0.20 x 0.20 in
Total Memory	Flash: 8k bits instruction, EEPROM: 16k bits, RAM: 256 bytes	Flash: 4k bits instruction, EEPROM: 16k bits, RAM: 256 bytes
Product Code	620334	620354

Please find a comprehensive overview of all features in the data sheet.

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