ST25R3920B Datasheet | STMicroelectronics

Features - AEC-Q100 qualified - Operating modes - Reader/writer - Card emulation - Active and passive peer to peer - RF munication - EMVCo® 3.1a analog and digital pliant - NFC-A / ISO14443A up to 848 kbit/s - NFC-B / ISO14443B up to 848 kbit/s - NFC-F / Feli Ca™ up to 424 kbit/s - NFC-V / ISO15693 up to 53 kb/s - NFC-A / ISO14443A (106 kbit/s) and NFC-F / Feli Ca™ (212/424 kbit/s) card emulation - Active and passive peer to peer initiator and target modes, up to 424 kbit/s - Low level modes to implement MIFARE Classic® pliant or other custom protocols - Key features - Dynamic power output (DPO) controls the field strength to stay within given limits - Active wave shaping (AWS) reduces overand under-shoots - Noise suppression receiver (NSR) allows reception in noisy environment - Automatic antenna tuning (AAT) via variable capacitor - Integrated EMVCo® 3.1a pliant EMD handling - Automatic gain control and squelch feature to maximize SNR - Low power NFC active and passive target modes - Adjustable ASK modulation depth, from 0 to 82% - Integrated regulators to boost system PSRR - AM/PM and I/Q demodulator with baseband channel summation or automatic channel selection - Possibility to drive two independent single ended antennas - Measurement of antenna voltage amplitude and phase, RSSI, on-chip supply and regulated voltages - External munication interfaces - 512-byte FIFO - Serial peripheral interface (SPI) up to 5 Mbit/s - I2C with up to 400 kbit/s in Fast-mode, 1 Mbit/s in Fast-mode Plus, and 3.4 Mbit/s in High-speed mode - Electrical characteristics - Wide supply voltage and ambient temperature range (2.6 to 5.5 V from -40 °C to +105 °C, 2.4 to 5.5 V from -20 °C to +105 °C) - Wide peripheral munication supply range, from 1.65 to 5.5 V - Quartz oscillator capable of operating with 27.12 MHz crystal with fast start-up May 2023 This is information on a product in full production. DS13890 Rev...