RFID应答器 Contactless ReaderIC
Overview
MFRC631 is a cost efficient NFC frontend for payment. The MFRC631 supports ISO/IEC 14443A/MIFARE and ISO/IEC 14443B mode.
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## Features
* Includes ISO/IEC14443-A, Innovatron ISO/IEC14443-B and NXP MIFARE
Crypto 1 intellectual property licensing rights
* High-performance multi-protocol NFC frontend for transfer speed up to 848 kbit/s
* Supports ISO/IEC 14443 A/MIFARE, ISO/IEC 14443 B
* Supports MIFARE Classic encryption by hardware in read/write mode
* Allows to read MIFARE Ultralight, MIFARE Classic 1K, MIFARE Classic 4K, MIFARE DESFre EV1, MIFARE DESFire EV2 and MIFARE Plus cards
* Low-power card detection
* Compliance to “EMV contactless protocol specification V2.3.1” on RF level can be achieved
* Antenna connection with minimum number of external components
* Supported host interfaces:
* SPI up to 10 Mbit/s
* I2C-bus interfaces up to 400 kBd in Fast mode, up to 1000 kBd in Fast mode plus
* RS232 Serial UART up to 1228.8 kBd, with voltage levels dependent on pin voltage supply
* Separate I2C-bus interface for connection of a secure access module SAM
* buffer with size of 512 byte for highest transaction performance
* Flexible and efficient power saving modes including hard power down, standby and low-power card detection
* Cost saving by integrated PLL to derive system clock from 27.12 MHz RF quartz crystal
* 3 V to 5.5 V power supply
* Up to 8 free programmable input/output pins
* Typical operating distance in read/write mode for communication to a ISO/IEC 14443A/MIFARE Card up to 12 cm, depending on the antenna size and tuning
## Features
* Typical operating distance in read/write mode for communication to a ISO/IEC 14443A/MIFARE Card up to 12 cm, depending on the antenna size and tuning