NXP MF RC531


The MF RC531 is member of th Micore I family of highly integrated reader ICs for contactless communication at 13.56 MHz. This reader IC family utilises an outstanding modulation and demodulation concept completely integrated for all kinds of passive contactless communication methods and protocols at 13.56 MHz.

The MF RC531 is pin- compatible to the MF RC500, the MF RC530 and the SL RC400.

The MF RC531 supports all layers of the ISO/IEC 14443A/B communication scheme, given correct implementation of additional components, like oscillator, power supply, coil etc. and provided that standardised protocols, e.g. like ISO/IEC 14443-4 and/or ISO/IEC 14443 type B anticollision are correctly implemented. The use of this NXP IC according to ISO14443 Type B might infringe third party patent rights. The MF RC531 supports contactless communication using MIFAREŽ higher baudrates. The internal transmitter part is able to drive an antenna designed for proximity operating distance (up to 100 mm) directly without additional active circuitry. The receiver part provides a robust and efficient implementation of a demodulation and decoding circuitry for signals from ISO14443 compatible transponders. The digital part handles the complete ISO14443 framing and error detection (Parity & CRC). Additionally it supports the fast MIFAREŽ Classic security algorithm to authenticate MIFARE Classic (e.g. MIFAREŽ Standard) products.

A comfortable parallel interface, which can be directly connected to any 8-bit ľ-Processor gives high flexibility for the reader/terminal design. Additionally a SPI compatible interface is supported.

Features

  • Highly integrated analog circuitry to demodulate and decode card response
  • Buffered output drivers to connect an antenna with minimum number of external components
  • Proximity operating distance (up to 100 mm)
  • Supports ISO 14443
  • Supports MIFAREŽ Dual Interface Card ICs and supports MIFAREŽ Classic protocol
  • Supports contactless communication with higher baudrates up to 424 kHz
  • Crypto1 and secure non-volatile internal key memory
  • Pin-compatible to the MF RC500, MF RC530 and the SL RC400
  • Parallel μ-Processor interface with internal address latch and IRQ line
  • SPI compatible interface
  • Flexible interrupt handling
  • Automatic detection of the used μ-Processor interface type
  • Comfortable 64 byte send and receive FIFO buffer
  • Hard reset with low power function
  • Power down mode per software
  • Programmable timer
  • Unique serial number
  • Bit- and byte-oriented framing
  • Internal oscillator buffer to connect 13.56 MHz quartz, optimised for low phase jitter
  • 3.3 V to 5 V operation for transmitter (antenna driver) in short range and proximity
    applications
  • 3.3 V or 5V operation for the digital part
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