STMicroelectronics ST25R3917B-AQWT RFID & NFC Transceiver, 64-Pin TSSOP

The STMicroelectronics high performance NFC universal devices supporting NFC initiator, NFC target, NFC reader and NFC card emulation modes when applicable. It is fully compliant with EMVCo 3.0 analog and digital, this NFC IC is optimized for POS terminal applications, and enables the fastest EMVCo 3.0 certification cycles possible, even under harsh conditions, with antenna around noisy LCD displays.

• Active and passive peer to peer initiator and target modes, up to 424 kbit/s
• 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 antenna tuning (AAT) via variable capacitor
• Automatic gain control and squelch feature to maximize SNR
• 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