NXP reader chip
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MFRC523 is a highly integrated the read/write device, which can realize the contactless communication when the 13.56 MHz. MFRC523 card reader support ISO/IEC 14443 A/MIFARE mode.

MFRC523 internal emitter no additional active circuit which can drive designed for and ISO/IEC 14443 A/MIFARE card and launch transponder communications and read/write antenna design. The receiver module provides a powerful and efficient demodulation and decoding circuit, can be used in the ISO/IEC 14443 a transponder signal/compatible MIFARE card and launch. Digital module management complete ISO/IEC 14443 A into the frame and error detection (parity and CRC) function.

Support all the ISO/IEC 14443 and ISO/IEC 14443 B protocol layer communications standards:

Correct installation oscillator, power supply, coil and other additional components

Correct deployment of ISO/IEC 14443-4 and/or standardized protocols such as ISO/IEC 14443 B protocol

Use up to the standard of ISO/IEC 14443 B the boon wisdom pu semiconductor devices may be infringement of the patent right for a third party.

PN533 support two-way transmission rate is as high as 848 kBd MIFARE higher baud rate contactless communication.

Provide the following host interface:

Serial peripheral interface (SPI)

RS232 serial UART (similar, voltage supply voltage level depends on the stitching)

I squared C bus interface

Characteristics and advantages

A highly integrated analog demodulation and decoding the response

Output buffer drives, can use at least external components to connect antenna

Support ISO/IEC 14443 A/MIFARE standard

Support ISO/IEC 14443 B read/write mode

Read/write mode of typical working distance up to 50 mm, depending on the antenna size and tuning

Read/write mode support MIFARE Mini, MIFARE 1 k and MIFARE 4 k encryption

Supports 212 kBd, 424 kBd and 848 kBd under ISO/IEC 14443 A high transfer rate of communication


Additional internal power through the MFIN/MFOUT connected to the smart card IC

In support of the host interface

The fastest 10 MBPS of SPI

Fast mode maximum 400 kBd, high-speed mode maximum 3400 kBd I squared C bus interface

The highest 1228.8 kBd RS232 serial UART, the voltage level depends on the stitch or voltage source

FIFO buffers can handle 64 bytes sent and received

Flexible interrupt mode

Hard reset by low power function

The software shut off mode

Programmable timer

Used to connect to the interior of the 27.12 MHz quartz crystal oscillator

2.5 V to 3.3 V power supply

CRC coprocessor

Programmable I/O pins

Internal self-test

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