New highly integrated NFC Initiator / HF Reader IC for painless implementation

22 Jun 2017

A powerful NFC/HF Reader IC, the ST25R3911B offers 1.4 W output power combined with Automatic Antenna Tuning for the largest operating volume and read range even in challenging environments. Able to drive a differential or two single-ended antennas, it has enough power to externally multiplex an even greater amount. Combining capacitive and inductive low-power wakeup functions, it ensures fast response times while reducing power consumption to a minimum.

Key features:

  • ISO18092 (NFCIP-1), ISO 14443A, ISO 14443B and FeliCa
  • VHBR support up to 6.8 Mb/s
  • 1.4 W output power at 5 V
  • Automatic Antenna Tuning
  • -40 C to 125 ºC temperature range

Evaluation boards ST25R3911B-DISCO (ST25R3911B + STM32L476) and X-NUCLEO-NFC05A1  will be available July 2017