An article to understand the difference between RFID RC522 and PN532

The difference between RFID RC522 and PN532

In simple terms, the protocol supports more types of PN than the RC series. PN supports NFC protocol, RC mainly supports ISO14443A/B.

The RC522 is a high-frequency RF chip supporting the ISO14443A protocol from NXP. The PN532 is a RF chip that supports NFC functionality and is also available from NXP.

RC522 features

â—† Highly integrated modulation and demodulation circuit;

â—† Use a few external devices to connect the output driver stage to the antenna.

◆ Supports ISO/IEC 14443 Type A and MIFARE® communication protocols;

◆ The communication distance with ISO 14443A/MIFARE® in reader/writer mode is up to 50mm, depending on the length and tuning of the antenna.

â—† Supports higher transmission rate communication of ISO 14443 212kbit/s and 424kbit/s.

◆ Supports MIFARE® Classic encryption;

â—† Supported host interfaces:

-10 Mbit/s SPI interface

-I2C interface, 400 kbit/s in fast mode and 3400 kbit/s in high speed mode

- Serial UART, transfer rate up to 1228.8 kbit/s, frame depends on RS232 interface, voltage level depends on supplied pin voltage

â—† 64-byte transmit and receive FIFO buffers;

â—† Flexible interrupt mode;

â—† programmable timer.

◆ There are three power-saving modes: hardware power-off, software power-off and transmitter power-down. The former two modes are similar to the MFRC500 and CL RC400. Its unique “transmitter power-down” disables the internal antenna driver, ie, RF is turned off. field;

â—† Built-in temperature Sensor to automatically stop RF emission when the chip temperature is too high;

â—† Use independent sets of power supply to avoid mutual interference between modules and improve work stability;

â—† With CRC and parity functions, the 16-bit long CRC calculation polynomial of the CRC coprocessor is fixed at x16+x12+x5+1, conforming to ISO/1EC14443 and CCTITT protocols;

â—† Internal oscillator, connecting 27.12MHz crystal;

â—† 2.5 ~ 3.3V low voltage and low power design;

◆ Operating temperature range -30 ~ +85 °C;

â—† 5mm & TImes; 5mm & TImes; 0.85mm ultra-small size.

An article to understand the difference between RFID RC522 and PN532

RC522 application

The RC522 is suitable for a variety of contactless communication applications based on the ISO/IEC 14443A standard and requiring low cost, small size, high performance, and single power.

â–² three tables;

â–² Board unit;

â–² Public transport terminals;

â–² portable handheld devices;

â–² contactless public telephone.

PN532 working mode

● Reader mode supports ISO/IEC14443A/MIFARE® mechanisms

● Reader mode supports FeliCa mechanism

● Reader mode, support ISO/IEC14443B mechanism

● Card operation mode, support for ISO14443A/MIFARE® mechanism

● Card operation mode, FeliCa mechanism

● ISO/IEC18092, ECM340 peer to peer

An article to understand the difference between RFID RC522 and PN532

Pn532 features

● 80C51 microcontroller core with 40kBROM and 1kBRAM

● Highly integrated analog circuit, demodulation and decoding response

Output buffer drivers connect the antenna with a minimum amount of external passive components

● Integrated RF field detector

● Integrated data mode detector

● Support ISO/IEC14443A/MIFARE®

● Supports ISO/IEC14443B only in reader/writer mode

● The typical working distance exceeds 50mm in the reader/writer mode. The specific distance is determined by the antenna size, tuning and power supply.

● Working distance up to 50mm in NFCIP-1 mode, depending on antenna size, tuning and power supply

● The typical working distance is about 100mm in the card operating mode, the specific distance is determined by the antenna size, tuning and external field strength

● Supports MifareClassic encryption in reader/writer mode, which supports higher data rates of 212kbit/s and 424kbit/s

● Supports communication baud rates of 106kbit/s, 212kbit/s, and 424kbit/s in FeliCa mode

● Integrated RF interface of NFCIP-1, transmission rate up to 424kbit/s

● Support host interface:

-SPI interface

-I2C interface

- Serial UART

● Flexible interrupt mode

● Low-power mode - Hardware power-down mode - Software power-down mode

● Automatic wake-up via I2C, HSU, and SPI interfaces when the device is in power-down mode

● Programmable timer

● quartz crystal oscillator

●2.7V~5.5V power supply

Wake up PN532 condition

Wake up the chip must meet the following three conditions

1) Pull up the PVDD pin

2) In the I2C mode, the address 48h is sent. In the SPI mode, the NSS is pulled low. In fact, the data header in the serial port mode must be 0x55x55x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x03, 0xFD, 0xD4, 0x14, 0x01, 0x17, 0x00

3) The host must send the command 140200 (virtual mode) or 1401 (normal mode)

Manual Sensor

Multi function remote manual pulse generator for control of all axes.

Manual Sensor,Miniature Optical Kit Encoder,Rotary Encoder With Led Ring,Optical Quadrature Encoder

Yuheng Optics Co., Ltd.(Changchun) , https://www.yuhengcoder.com

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