RC522 Mini RFID Module

Here’s the

RC522 Chip Introduction

MF RC522 is a highly integrated read/write chip for 13.56 MHz non-contact communication. It is a low-voltage, low-cost, small-sized non-contact read/write chip launched by NXP for the "three-meter" application. It is an ideal choice for developing smart instruments and portable hand-held devices.

The MFRC522 adopts advanced modulation and demodulation concepts, integrating all types of passive contactless communication methods and protocols at 13.56 MHz. It supports 14443A compatible transponder signals, digital part processes ISO14443A frames and error detection. It also supports fast CRYPTO1 encryption algorithm and MIFARE product series authentication.

The MFRC522 supports higher-speed non-contact communication with MIFARE series products, with dual data transmission speeds up to 424 kbps. As a new member of the highly integrated 13.56 MHz series chips, the MF RC522 is fully compatible with MF RC500 and MF RC530, with many similarities and differences. It has multiple low-voltage operation modes and communicates through the SPI interface, making it easy to connect, reducing PCB board size, and lowering costs.

RFID Module Introduction

The MF522-AN module uses Philips’ MFRC522 chip as the card reader circuit, with simple peripheral circuits, low cost, suitable for device development, card reader development, and advanced applications, as well as for users who need terminal design/production of RF card terminals.

This module can be directly embedded into various types of card reader devices. The module operates at 3.3 V and communicates with any CPU mainboard via a few simple SPI lines, ensuring stable and reliable operation.

The reader module is easy to use, highly reliable, compact in size, and helps customers easily and quickly develop non-contact card application systems. 

Electrical Parameters

• Operating current: 13–26mA / DC 3.3V
• Idle current: 10–13mA / DC 3.3V
• Sleep current: < 80µA
• Peak current: < 30mA
• Operating frequency: 13.56MHz
• Supported card types: mifare1 S50, mifare1 S70, mifare UltraLight, mifare Pro, mifare Desfire

Environmental Conditions

• Operating temperature: -20 ~ 80 °C
• Storage temperature: -40 ~ 85 °C
• Relative humidity: 5% ~ 95%