TRF7970A
Integrated NFC reader/writer IC supporting multiple protocols including ISO14443A/B, ISO15693, and FeliCa
Full Specifications
| Manufacturer | Texas Instruments |
|---|---|
| Frequency Category | NFC |
| Frequency | 13.56 MHz |
| Protocol | ISO/IEC 14443A, ISO/IEC 14443B, ISO/IEC 15693, FeliCa, NFC Forum Tag Types 1-5 |
| Memory | N/A (reader/writer IC, not a tag) |
| Interface | SPI, Parallel (8-bit/16-bit), I2C-like serial |
| Temperature Range | -40°C to +85°C |
| Form Factor | VQFN-32 (RGE), HTQFP-32 (PAP) |
| Security | Hardware support for CRC, parity checking, framing per ISO14443 and ISO15693 |
Engineering Brief
The TRF7970A is a fully integrated 13.56 MHz NFC/RFID reader/writer transceiver IC from Texas Instruments. It supports multiple air interface protocols including ISO14443A/B, ISO15693, FeliCa, and all five NFC Forum tag types, making it highly versatile for contactless applications. The device features a flexible digital interface (SPI, parallel, or serial) and includes integrated transmit drivers, receiver circuits, and protocol handling to minimize external component count. Operating across an industrial temperature range, it's designed for building complete NFC reader systems in payment, access control, and data exchange applications.
Typical Applications
- NFC reader modules for payment terminals
- Access control and electronic door locks
- Smart poster and tag reading applications
- Mobile phone NFC reader peripherals
- Peer-to-peer NFC data exchange systems
- RFID inventory and asset tracking readers
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