MFRC522单片机技术资料分享

atmeldl

　Features
　　· Highly integrated analog circuitry to demodulate and decode responses
　　· Buffered output drivers to connect an antenna with minimum number of external　components
　　· Supports ISO/IEC 14443A / MIFARE（R）
　　· Typical operating distance in Reader/Writer mode for communication to a　ISO/IEC 14443A / MIFARE（R）　up to 50 mm depending on the antenna size and tuning
　　· Supports MIFARE（R）　Classic encryption in Reader/Writer mode
　　· Supports ISO/IEC 14443A higher transfer speed communication up to 848 kbit/s
　　· Support of the MFIN / MFOUT
　　· Additional power supply to directly supply the smart card IC connected via MFIN / MFOUT
　　· Supported host interfaces
　　- SPI interface up to 10 Mbit/s
　　- I2C interface up to 400 kbit/s in Fast mode, up to 3400 kbit/s in High-speed mode
　　- serial UART in different transfer speeds up to 1228.8 kbit/s, framing according to　the RS232 interface with voltage levels according pad voltage supply
　　· Comfortable 64 byte send and receive FIFO-buffer
　　· Flexible interrupt modes
　　· Hard reset with low power function
　　· Power-down mode per software
　　· Programmable timer
　　· Internal oscillator to connect 27.12 MHz quartz
　　· 2.5 - 3.3 V power supply
　　· CRC Co-processor
　　· Free programmable I/O pins
　　· Internal self test本资料由www.xpjm.net整理提供，仅供参考。