نظرة عامة على المنتج
The ST25R3916-AQWT is a high-performance NFC universal device from STMicroelectronics, supporting NFC initiator, target, reader, and card emulation modes. Fully EMVCo 3.0 compliant, it integrates an advanced analog front end with high RF output power (>1.6W) for direct antenna driving. The -AQWT package is a 32-pin VFQFPN (5x5mm) with wettable flanks. It supports ISO 14443A/B, ISO 15693, FeliCa, and NFC peer-to-peer, with features like automatic antenna tuning (AAT) and noise suppression receiver (NSR).
المواصفات الرئيسية
| Operating Modes | Reader/Writer, Card Emulation, Active/Passive P2P |
| NFC Protocols | NFC-A/B/F/V, ISO 14443A/B, ISO 15693, FeliCa |
| Data Rates | Up to 848 kbit/s (NFC-A/B), 424 kbit/s (NFC-F) |
| EMVCo | 3.0 compliant (analog and digital) |
| RF Output Power | >1.6W (differential antenna) |
| Antenna Tuning | Automatic (AAT) via variable capacitor |
| Card Detection | Capacitive and inductive sensors |
| Communication Interface | SPI (10 Mbit/s), I2C (3.4 Mbit/s HS mode) |
| FIFO | 512 bytes |
| جهد الإمداد | 2.4V to 5.5V |
| الحزمة | 32-pin VFQFPN (5x5x1 mm, wettable flanks) |
| درجة حرارة التشغيل | -40C to +105C |
| حالة الجزء | NRND |
الميزات
- High RF output power (>1.6W) for excellent read range without external amplifier
- EMVCo 3.0 analog and digital compliance for POS terminal certification
- Automatic antenna tuning (AAT) compensates for environmental detuning
- Noise suppression receiver (NSR) for operation near noisy LCD displays
- Active wave shaping (AWS) reduces RF overshoot for easier compliance
- Low power capacitive and inductive card detection wake-up
- NFC card emulation and active P2P for device pairing
التطبيقات
- EMVCo 3.0 contactless payment terminals
- NFC reader for consumer and industrial devices
- Device pairing and authentication
- Wireless charging protection (Qi NFC)
- Access control and e-government ID readers