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    ST25R3911B-AQFT

    ST25R3911B-AQFT

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    ST25R3911B-ASWB

    High performance HF reader / NFC initiator with 1.4 W supporting VHBR and AAT

    Parameters
    Supply Voltage Min Volt2.4
    Supply Voltage Max Volt5.5
    Operating Temp Min Celsius-40.0
    Operating Temp Max Celsius105.0
    ECCN USEAR99
    ECCN EUNEC
    Packing TypeNot Applicable
    RoHs compliantN/A
    GradeIndustrial
    Package NameUS WF V.I.
    Description

    The ST25R3911B 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...
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    Key features
    Key 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 startup
    • 6 Mbit/s SPI with 96 bytes FIFO
    • Wide supply voltage range: 2.4 V to 5.5 V
    • Wide temperature range: -40 °C to 125 °C
    • QFN32, 5 x 5 mm package with wettable flank or wafer delivery
    Out of Stock
    Parameters
    Supply Voltage Min Volt2.4
    Supply Voltage Max Volt5.5
    Operating Temp Min Celsius-40.0
    Operating Temp Max Celsius105.0
    ECCN USEAR99
    ECCN EUNEC
    Packing TypeNot Applicable
    RoHs compliantN/A
    GradeIndustrial
    Package NameUS WF V.I.
    Description

    The ST25R3911B 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...
    Read More

    Key features
    Key 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 startup
    • 6 Mbit/s SPI with 96 bytes FIFO
    • Wide supply voltage range: 2.4 V to 5.5 V
    • Wide temperature range: -40 °C to 125 °C
    • QFN32, 5 x 5 mm package with wettable flank or wafer delivery
    Associated products