The MF RC522 stands as a high-integration read/write card chip purpose-built for 13.56MHz contactless communication. Its adaptability makes it an ideal option for both smart meter development and the creation of portable handheld devices. Through the utilization of sophisticated modulation and demodulation principles, the MF RC522 seamlessly incorporates passive contactless communication methodologies and protocols at the 13.56MHz frequency, seamlessly accommodating ISO14443A compliant transponder signals. Within this framework, the chip expertly manages ISO14443A frame processing, error detection, rapid CRYPTO1 encryption, and the validation of MIFARE series products. Of noteworthy significance, the MF RC522 offers support for bidirectional data rates reaching up to 424 kbit/s, enabling efficient and swift contactless interactions within the MIFARE series. Its integration of SPI mode for host communication optimally refines wiring configurations, reduces PCB size, and subsequently curtails overall costs. The MF522-MINI module introduces the genuine RC522 chip in a card reader circuit design. Operating at the 13.56MHz frequency and aligned with the ISO14443A standard, this module is attuned to MIFARE1 S50, S70, Light, UltraLight, and Pro cards. It emerges as a valuable asset for progressive applications encompassing the development of devices and card readers, catering adeptly to users seeking RF card terminal design and production. Simplifying the incorporation into perse reader molds, the module seamlessly interfaces with 3.3V-capable CPU boards through an uncomplicated SPI interface, guaranteeing unwavering functionality and extending the range for data retrieval. Featuring an intuitive design, heightened reliability, and a compact form factor, this module streamlines the assimilation of contactless cards into various systems. This streamlined integration facilitates expedited and effective contactless data exchange, augmenting overall operational efficiency.

Feature:

• 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: 37.5mm × 33mm Environmental working temperature: -20-80 degrees Celsius 
• Environmental storage temperature: -40-85 degrees Celsius 
• Relative humidity: 5%-95% relative humidity

Pinout

• SDA--SPI port selection
• SCK--SPI port clock
• MOIS--SPI port slave input
• MISO--SPI port slave output
• IRQ--Interrupt port
• GND--GND
• RST--Reset
• 3.3V--VCC

Package includes:

1 x RC522 MINI module 

• 1 x S50 shaped card
• 1 x RFID Module
• 1 x Yellow straight row
• 1 x Bent row pins