STMicroelectronics

ST25R3920B-AQWT  

RFID, RF Access, Monitoring ICs

The ST25R3920B-AQWT is a high-frequency, multi-protocol NFC/RFID reader IC manufactured by STMicroelectronics. This chip is designed to provide a comprehensive solution for contactless communication and is suitable for a wide range of applications, including mobile devices, access control, and IoT devices.

Description:

The ST25R3920B-AQWT is a highly integrated reader IC that supports multiple communication protocols, including NFC Forum (Type 1, 2, 3, 4, and 5), ISO/IEC 14443A, ISO/IEC 14443B, and ISO/IEC 15693. It operates at a frequency of 13.56 MHz and can communicate with various types of NFC and RFID tags.

Features:

1. Multi-protocol support: Supports NFC Forum (Type 1, 2, 3, 4, and 5), ISO/IEC 14443A, ISO/IEC 14443B, and ISO/IEC 15693 protocols.
2. Operating frequency: 13.56 MHz.
3. Integrated antenna: The chip features an integrated antenna, which simplifies the design and reduces the overall size of the reader.
4. Low power consumption: The ST25R3920B-AQWT is designed for low power consumption, making it suitable for battery-powered devices.
5. Automatic tuning: The chip automatically tunes the antenna impedance for optimal performance.
6. I2C interface: It provides a standard I2C interface for easy integration with microcontrollers and other digital systems.
7. GPIOs: The chip has multiple GPIOs that can be used for various purposes, such as controlling LEDs or interfacing with external components.
8. EEPROM: The ST25R3920B-AQWT includes an on-chip EEPROM for storing configuration and application data.
9. Operating temperature range: -40°C to +85°C.

Applications:

1. Mobile devices: The ST25R3920B-AQWT can be used in smartphones, tablets, and other mobile devices to enable NFC-based applications, such as contactless payments, data sharing, and device pairing.
2. Access control: The chip can be used in access control systems for secure identification and authentication.
3. IoT devices: The ST25R3920B-AQWT can be integrated into IoT devices for remote monitoring, control, and data collection.
4. Point-of-sale (POS) terminals: The chip can be used in POS terminals to enable contactless payment and loyalty card systems.
5. Industrial automation: The ST25R3920B-AQWT can be used in industrial automation systems for tracking and identification of assets and components.
6. Laundry systems: The chip can be integrated into laundry systems for tracking and identification of RFID-tagged laundry items.
7. Inventory management: The ST25R3920B-AQWT can be used in inventory management systems for tracking and identification of tagged items.

In summary, the ST25R3920B-AQWT is a versatile and high-performance NFC/RFID reader IC that supports multiple communication protocols and offers a range of features, making it suitable for a wide range of applications in various industries.

ST25R3920B-AQWT Documents

Download datasheets and manufacturer documentation for ST25R3920B-AQWT

Datasheets :

ST25R3920B