[Introduction to RC522 chip]
MF RC522 is a highly integrated card reader/writer chip used in 13.56MHz contactless communication. It is a low-voltage, low-cost, and small-sized non-contact card reader/writer chip launched by NXP for the "three-meter" application. It is a better choice for the research and development of smart meters and portable handheld devices. MF RC522 utilizes advanced modulation and demodulation concepts, and fully integrates all types of passive non-contact communication methods and protocols under 13.56MHz. Support 14443A compatible transponder signal. The digital part handles ISO14443A frames and error detection. In addition, it also supports the fast CRYPTO1 encryption algorithm to verify the MIFARE series of products. MFRC522 supports the higher-speed non-contact communication of the MIFARE series, with a two-way data transmission rate of up to 424kbit/s. As a new member of the 13.56MHz high-integration card reader/writer series chip family, MF RC522 has many similarities with MF RC500 and MF RC530, but also has many features and differences. The communication between it and the host adopts 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-AN module adopts Philips MFRC522 original chip to design the card reading circuit, which is easy to use and low in cost. It is suitable for users of advanced applications such as equipment development, 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 module adopts a voltage of 3.3V, and it can directly connect to any user's CPU motherboard through a few simple lines of the SPI interface, which can ensure the stable and reliable work of the module and the long distance of the card reading,
[Introduction to electrical parameters]
Working current: 13—26mA/DC 3.3V
Idle current: 10-13mA/DC 3.3V
Sleep current: <80uA
Peak current: <30mA
Working frequency: 13.56MHz
Supported card types: mifare1 S50, mifare1 S70, mifare UltraLight, mifare Pro, mifare Desfire
Product physical characteristics: Size: 40mm×60mm
Environmental working temperature: -20—80 degrees Celsius
Environmental storage temperature: -40-85 degrees Celsius
Environmental relative humidity: relative humidity 5%-95%