ST25R3912

ST25R3912 High performance HF reader / NFC initiator for payment applications with 1 W output power Datasheet - production data WLCSP QFN32 / VFQFPN32 Features ISO 18092 (NFCIP-1) Active P2P ISO14443A, ISO14443B, ISO15693 and FeliCa™ Supports HBR up to 848 kbit/s PICC to PCD and PCD to PICC framing Inductive sensing - Wake-up Automatic modulation index adjustment AM and PM (I/Q) demodulator channels with automatic selection Up to 1 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 or 27.12 MHz crystal with fast start-up 6 Mbit/s SPI with 96 bytes FIFO Wide supply voltage range from 2.4 to 5.5 V Wide temperature range: -40 °C to 125 °C VFQFPN32, 5 mm x 5 mm package with wettable flanks WLCSP, 3.0 mm x 2.8 mm package Description The ST25R3912 is a highly integrated NFC initiator / HF reader IC, including the analog front end (AFE) and a highly integrated data framing system for ISO 18092 (NFCIP-1) initiator, ISO 18092 (NFCIP-1) active target, ISO 14443A and B reader (including high bit rates), ISO 15693 reader and FeliCa™ reader. Implementation of other standard and custom protocols like MIFARE™ Classic is possible using the AFE and implementing framing in the external microcontroller (Stream and Transparent modes). The...