ST25R3911B-AQFT

ST25R3911B-AQFT

ST25R3911B-AQWT

ST25R3911B-AQWT

ST25R3911B-ASWB

Active

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

Quantity $ per Unit Savings
1 - 9$5.780%
10 - 24$5.1810%
25 - 99$4.9015%
100 - 249$3.8034%
250 - 499$3.7136%
500$3.6138%
Contact Sales
Out of stock
$5.78
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 TypeNot Applicable
ROHS Compliance GradeN/A
GradeIndustrial
Package NameUS WF V.I.
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 start-up
  • 6 Mbit/s SPI with 96 bytes FIFO
  • Wide supply voltage range from 2.4 V to 5.5 V
  • Wide temperature range: -40 °C to 125 °C
  • QFN32, 5x5 mm package with wetable flank or wafer delivery