【Introduction to RC522 chip】
MF RC522 is a high-integration read-write card chip used in 13.56MHz contactless communication. It is a low-voltage, low-cost, small-sized contactless read-write card chip for the “three-meter” application. It is a smart meter. It is a better choice for research and development of portable handheld devices. The MF RC522 utilizes advanced modulation and demodulation concepts and fully integrates all types of passive contactless communication methods and protocols at 13.56MHz. Supports 14443A compatible transponder signals. The digital part handles ISO14443A framing and error detection. In addition, it also supports the fast CRYPTO1 encryption algorithm, which is used to verify the MIFARE series products. MFRC522 supports the higher-speed contactless communication of MIFARE series, and the bidirectional data transmission rate is up to 424kbit/s. As a new member of the 13.56MHz high-integration card reader series chip family, MF RC522 has many similarities with MF RC500 and MF RC530, as well as many features and differences. The communication between it and the host adopts the SPI mode, which is beneficial to reduce the connection, reduce the size of the PCB board, and reduce the cost.
【Introduction to RFID Module】
The MF522-MINI module adopts RC522 chip to design the card reading circuit. The module works at 13.56MHz frequency and conforms to the ISO14443A standard. It can support Mifare1 S50, Mifare1 S70, Mifare Light, Mifare UltraLight, and Mifare Pro. It is suitable for users of advanced applications such as device development and card reader development, and users who need to design/produce radio frequency card terminals. This module can be directly loaded into various card reader molds. The voltage of the module is 3.3V, and it can directly connect and communicate with any CPU motherboard of the user through the SPI interface with a few simple lines, which can ensure the stable and reliable operation of the module and the reading distance of the card; the module has the advantages of easy-to-use, high reliability and small size. It can help customers to apply the contactless card to the system conveniently and quickly.
【Introduction to electrical parameters】
Working current: 13—26mA/DC 3.3V
Idle current: 10-13mA/DC 3.3V
Sleep current: <80uA
Peak current: <30mA
Operating frequency: 13.56MHz
Supported card types: mifare1 S50, mifare1 S70, mifare UltraLight, mifare Pro, mifare Desfire
Product physical characteristics: Size: 37.5mm × 33mm
Ambient working temperature: -20-80 degrees Celsius
Ambient storage temperature: -40-85 degrees Celsius
Ambient relative humidity: relative humidity 5%—95%