ST25R3918-AQWT

Active

Multi-purpose NFC transceiver

Quantity $ per Unit Savings
1 - 9$3.850%
10 - 24$3.4710%
25 - 99$3.2715%
100 - 249$2.8426%
250 - 499$2.7030%
500$2.4237%
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Out of stock
$3.85
Parameter NameParameter Value
Supply Voltage Min Volt2.4
Supply Voltage Max Volt5.5
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius125.0
ECCN USEAR99
ECCN EUNEC
Packing TypeTape And Reel
ROHS Compliance GradeEcopack2
GradeIndustrial
Package NameVFQFPN 5X5X1 32L WETTABLE FLANKS
Key features
  • Operating modes
    • Reader/writer
    • Card emulation
    • Passive peer to peer
  • RF communication
    • NFC-A / ISO14443A up to 848 kbit/s
    • NFC-B / ISO14443B up to 848 kbit/s
    • NFC-V / ISO15693 up to 53 kb/s
    • NFC-A / ISO14443A and NFC-F / FeliCa™ card emulation
    • Low level modes to implement MIFARE Classic® compliant or other custom protocols
  • Key features
    • Dynamic power output (DPO) controls the field strength to stay within given limits
    • Active wave shaping (AWS) reduces over-and under-shoots
    • Noise suppression receiver (NSR) allows reception in noisy environment
    • Automatic gain control and squelch feature to maximize SNR
    • Low power inductive card detection
    • Low power NFC passive target modes
    • Adjustable ASK modulation depth, from 5 to 40%
    • 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 communication interfaces
    • 512-byte FIFO
    • Serial peripheral interface (SPI) up to 10 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 communication supply range, from 1.65 to 5.5 V
    • Quartz oscillator capable of operating with 27.12 MHz crystal with fast start-up