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ST25R3911B

STMicroelectronics
Part Number ST25R3911B
Manufacturer STMicroelectronics
Description High performance HF reader / NFC initiator
Published Apr 30, 2019
Detailed Description ST25R3911B Datasheet High performance HF reader / NFC initiator with 1.4 W supporting VHBR and AAT QFN32/VFQFPN32 (5 × ...
Datasheet PDF File ST25R3911B PDF File

ST25R3911B
ST25R3911B

Overview
ST25R3911B Datasheet High performance HF reader / NFC initiator with 1.
4 W supporting VHBR and AAT QFN32/VFQFPN32 (5 × 5 mm) Wafer Product status link ST25R3911B Features • ISO 18092 (NFCIP-1) Active P2P • ISO14443A, ISO14443B, ISO15693 and FeliCa™ • Supports VHBR (3.
4 Mbit/s PICC to PCD framing, 6.
8 Mbit/s AFE and PCD to PICC framing) • Capacitive sensing - Wake-up • Automatic antenna tuning system providing tuning of antenna LC tank • Automatic modulation index adjustment • AM and PM demodulator channels with automatic selection • DPO (Dynamic power output) • Up to 1.
4 W in case of differential output • User selectable and automatic gain control • Transparent and stream modes to implement MIFARE™ classic compliant or other custom protocols • Possibility of driving two antennas in single ended mode • Oscillator input capable of operating with 13.
56 MHz or 27.
12 MHz crystal with fast start-up • 6 Mbit/s SPI with 96 bytes FIFO • Wide supply voltage range from 2.
4 V to 5.
5 V • Wide tem...


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