NXP Semiconductors MFRC531
the MFRC531 Integrated Circuit (IC). It includes the functional and electrical specifications and from a system and hardware viewpoint gives detailed information on how to design-in the device. Remark: The MFRC531 supports all variants of the MIFARE Mini, MIFARE 1K, MIFARE 4K, MIFARE Ultralight, MIFARE DESFire EV1 and MIFARE Plus RF identification protocols.FEATURES AND BENEFITS
3.1 General● Highly integrated analog circuitry for demodulating and decoding card/label response
● Buffered output drivers enable antenna connection using the minimum of external components
● Proximity operating distance up to 100 mm
● Supports both ISO/IEC 14443 A and ISO/IEC 14443 B standards
● Supports the MIFARE Mini, MIFARE 1K, MIFARE 4K protocols
● Contactless communication at MIFARE higher baud rates (up to 424 kBd)
● Crypto1 and secure non-volatile internal key memory
● Pin-compatible with the MFRC500, MFRC530 and the SLRC400
● Parallel microprocessor interface with internal address latch and IRQ line
● SPI compatibility
● Flexible interrupt handling
● Automatic detection of parallel microprocessor interface type
● 64-byte send and receive FIFO buffer
● Hard reset with low power function
● Software controlled Power-down mode
● Programmable timer
● Unique serial number
● User programmable start-up configuration
● Bit-oriented and byte oriented framing
● I...