TRF7963A Fully Integrated 13.56-MHz RFID Reader/Writer IC for ISO14443A/B



The TRF7963A device is an integrated analog front-end (AFE) and data-framing device for a 13.56-MHz RFID reader/writer system that supports ISO/IEC 14443 A and B and Sony FeliCa. Built-in programming options make it suitable for a wide range of applications for proximity identification systems.

The reader is configured by selecting the desired protocol in the control registers. Direct access to all control registers allows fine tuning of various reader parameters as needed.

The TRF7963A device supports data rates up to 848 kbps with all framing and synchronization tasks for the ISO protocols onboard. The device also supports reader/writer mode for NFC Forum tag types 1, 2, 3, and 4. NFC Forum tag types 2, 3, and 4 are supported with the built-in protocol decoders used in Direct Mode 2. NFC Forum tag type 1 requires the use of Direct Mode 0. Other standards and custom protocols can also be implemented by using Direct Mode 0. Direct Mode 0 lets the user fully control the AFE and also gain access to the raw subcarrier data or the unframed, but already ISO-formatted, data and the associated (extracted) clock signal.

The receiver system has a dual-input receiver architecture to maximize communication robustness. The receivers also include various automatic and manual gain control options. The received signal strength from transponders, ambient sources, or internal levels is available in the RSSI register.

A SPI or parallel interface can be used for the communication between the MCU and the TRF7963A reader. When the built-in hardware encoders and decoders are used, transmit and receive functions use a 12-byte FIFO register. For direct transmit or receive functions, the encoders or decoders can be bypassed so the MCU can process the data in real time.

The TRF7963A device supports a wide supply voltage range of 2.7 V to 5.5 V and data communication levels from 1.8 V to 5.5 V for the MCU I/O interface.

The transmitter has selectable output power levels of 100 mW (+20 dBm) or 200 mW (+23 dBm) equivalent into a 50-Ω load when using a 5-V supply and supports OOK and ASK modulation with selectable modulation depth.

The built-in programmable auxiliary voltage regulator delivers up to 20 mA to supply an MCU and additional external circuits within the reader system.

Start evaluating the TRF7963A transceiver IC with the TRF7960AEVM or the TRF7960ATB of the superset device.

Documentation, Tools, Reference Designs, and Software, Samples


  • Completely Integrated Protocol Handling for ISO/IEC 14443 A and B, NFC Forum Device Types 1 to 4, and FeliCa™
  • Input Voltage Range: 2.7 VDC to 5.5 VDC
  • Programmable Output Power:
    +20 dBm (100 mW) or +23 dBm (200 mW)
  • Programmable I/O Voltage Levels:
    1.8 VDC to 5.5 VDC
  • Programmable System Clock Frequency Output (RF, RF/2, RF/4)
  • Programmable Modulation Depth
  • Dual Receiver Architecture With RSSI for Elimination of "Read Holes" and Adjacent Reader System or Ambient In-Band Noise Detection
  • Programmable Power Modes for Ultra-Low-Power System Design (Power Down <0.5 µA)
  • Parallel or SPI Interface
  • Integrated Voltage Regulator for Microcontroller Supply
  • Temperature Range: –25°C to 85°C
  • 32-Pin QFN Package (5 mm × 5 mm) (RHB)

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Parametrics Compare all products in NFC / RFID

FIFOs (bytes)
Operating Temperature Range (C)
Power down (uA)
Stand-by (mA)
RX Current (Lowest) (mA)
TX - half power (mA)
TX - full power (mA)
Package Group
Package Size: mm2:W x L (PKG)
TRF7963A TRF7960A TRF7962A TRF7964A TRF7970A
ISO 14443A
ISO 14443B
JIS X 6319-4   
ISO 14443A
ISO 14443B
JIS X 6319-4
ISO 15693
ISO 18000-3   
ISO 15693
ISO 18000-3   
ISO 14443A
ISO 14443B
JIS X 6319-4
ISO 15693
ISO 18000-3   
ISO 14443A
ISO 14443B
JIS X 6319-4
ISO 15693
ISO 18000-3
ISO 18092   
12    12    12    127    127   
-20 to 85    -40 to 110    -20 to 85    -40 to 110    -40 to 110   
13.56 MHz    13.56 MHz    13.56 MHz    13.56 MHz    13.56 MHz   
0.5    0.5    0.5    0.5    0.5   
2    2    2    2    2   
10    10    10    10    10   
70    70    70    70    70   
130    130    130    130    130   
32VQFN: 25 mm2: 5 x 5(VQFN)    32VQFN: 25 mm2: 5 x 5(VQFN)    32VQFN: 25 mm2: 5 x 5(VQFN)    32VQFN: 25 mm2: 5 x 5(VQFN)    32VQFN: 25 mm2: 5 x 5(VQFN)