rc522 datasheet

The RC522 is a 13.56 MHz RFID reader module that is based on the MFRC522 integrated circuit. It is capable of reading and writing to ISO/IEC 14443 Type A cards, which includes MIFARE Classic cards. The module operates at a frequency of 13.56 MHz and is designed to be integrated into various electronic devices and systems. The RC522 module features a UART interface, making it easy to connect to microcontrollers and other devices. It also supports SPI and I2C communication interfaces, making it flexible for different applications. The module is powered by a 3.3V supply voltage and consumes low power, making it suitable for battery-powered devices. With its small size and versatile communication interfaces, the RC522 module is ideal for applications such as access control systems, electronic locks, attendance systems, and payment systems. It offers a cost-effective and efficient solution for RFID card reading and writing requirements.