Mô Đun Rfid Ic Mfrc-522 Rc522 Cho Arduino Ic Key

[introduction to rc522 chip]
MF rc522 is a highly integrated read-write card chip used in 13.56MHz contactless communication. It is a low-voltage, low-cost, small size contactless read-write card chip launched by NXP company for the application of "three meters". It is a good choice for the research and development of intelligent instruments and portable handheld devices. MF rc522 fully integrates all kinds of passive non-contact communication modes and protocols at 13.56MHz by using advanced modulation and demodulation concepts. Support 14443a compatible transponder signal. The digital part processes iso14443a frame and error detection. In addition, it also supports fast crypto1 encryption algorithm to verify Mifare series products. Mfrc522 supports higher speed contactless communication of Mifare series, with bidirectional data transmission rate up to 424kbit / s. As a new member of 13.56MHz high integration read-write card family, MF rc522 has many similarities with MF RC500 and MF rc530, but also has many characteristics and differences. It uses SPI mode to communicate with the host computer, which is helpful to reduce the wiring, reduce the volume of PCB board and reduce the cost.

[introduction to RFID module]
Mf522-an module adopts Philips mfrc522 original chip to design card reading circuit, which is convenient to use and low-cost. It is suitable for advanced application users such as equipment development, card reader development, and users who need to design / produce RF card terminal. The module can be directly loaded into various reader molds. The voltage of the module is 3.3V, and it can directly communicate with any CPU motherboard of the user through a few simple lines of SPI interface, which can ensure the stable and reliable operation of the module and the long distance of card reading;

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
Working temperature: 20-80 ℃
Ambient storage temperature: - 40-85 ℃
Relative humidity: 5% - 95%
Module interface SPI parameters
Data transmission rate: maximum 10mbi