The MFRC523 is a highly integrated oneReader/writerfor contactless communication at 13.56 MHz. The MFRC523 reader supports ISO/IEC 14443 A/MIFARE mode.
The MFRC523's internal transmitter can drive a read/write antenna designed for communication with ISO/IEC 14443 A/MIFARE cards and transmitter transponders without additional active circuitry. The receiver module provides a powerful and efficient demodulation and decoding circuit for ISO/IEC 14443A/MIFARE compliant cards and transmit transponder signals. The digital module manages the full ISO/IEC 14443 A framing and error detection (parity and CRC) functions.
Communication standards supporting all ISO/IEC 14443 A and ISO/IEC 14443 B protocol layers:
- Properly install additional components such as oscillators, power supplies, coils, etc
- Proper deployment of standardized protocols such as ISO/IEC 14443-4 and/or ISO/IEC 14443 B collision prevention
Use of this NXP® semiconductor device that complies with ISO/IEC 14443 B may infringe third party patent rights.
The PN533 supports MIFARE with bidirectional transmission rates up to 848 kBd and higher baud rate contactless communication.
The following host interfaces are available:
- Serial Peripheral Interface (SPI)
- Serial UART (similar to RS232, voltage level depends on pin voltage supply)
- I²C-bus interface
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Features and benefits
- Highly integrated analog circuitry for demodulation and decoding responses
- Buffered output drivers allow antennas to be connected with minimal external components
- Supports ISO/IEC 14443 A/MIFARE standards
- Supports ISO/IEC 14443 B read/write mode
- Typical operating distances of up to 50 mm in read/write mode, depending on antenna size and tuning
- MIFARE Mini, MIFARE 1K, and MIFARE 4K encryption are supported in read/write mode
- Supports ISO/IEC 14443 A communication transmission rates at 212 kBd, 424 kBd and 848 kBd
- MFIN/MFOUT is supported
- An additional internal power supply is connected to the smart card IC via MFIN/MFOUT
- Supported host interfaces
- SPI up to 10 Mbit/s
- I²C-bus interface up to 400 kBd in fast mode and up to 3400 kBd in high-speed mode
- RS232 serial UART up to 1228.8 kBd, whose voltage level depends on the pin voltage source
- The FIFO buffer handles 64-byte transmit and receive
- Flexible interrupt mode
- Hard reset through low-power functionality
- Software shutdown mode
- Programmable timer
- An internal oscillator for connecting to a 27.12 MHz quartz crystal
- 2.5 V to 3.3 V supply
- CRC coprocessor
- Programmable I/O pins
- Internal self-test
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