STMicroelectronics ST25R3920-AQWT

STMicroelectronics ST25R3920-AQWT Environmental and export classification status description

The ST25R3920-AQWT is an advanced contactless reader IC that supports various NFC and RFID standards. It features high performance in terms of data transmission rates and a wide operating range. It is primarily designed to operate in a 13.56 MHz frequency band and can communicate with a variety of NFC and RFID tags. Functions 1. NFC and RFID Reader Functionality: It can read and write to NFC and ISO/IEC 14443 Type A/B tags, and supports ISO/IEC 15693 and ISO/IEC 18000-3 modes. 2. Peer-to-Peer Communication: Enables two-way communication with NFC-enabled devices. 3. Card Emulation Mode: Can be configured to emulate NFC cards. 4. Flexible Antenna Interface: The IC can be connected to an external antenna, allowing customization of the system's communication range. 5. Integrated Features: Includes built-in detection for NFC card presence and various power management functionalities. Applications 1. Access Control Systems: Used in secure facility access and identity verification systems. 2. Payment Terminal Solutions: Integrated into systems for contactless payment processing. 3. Smart Posters: Enables dynamic interactions with smartphones or NFC devices. 4. Asset Tracking and Inventory Management: Utilized in supply chain management for tracking items. 5. Consumer Electronics: Found in devices providing NFC functionalities for seamless connectivity. Alternative Parts Some alternative parts that may fulfill similar functions include: 1. NFC ST25R3911: Another NFC reader IC but with different specifications. 2. NXP PN532: A popular NFC and RFID reader chip. 3. Microchip RN2483: Suitable for some low-power NFC applications. 4. Texas Instruments TRF7970A: Can serve various RFID/NFC needs with a focus on versatility. Embedded Modules Modules that incorporate the ST25R3920-AQWT may include: 1. NFC Reader Modules: Ready-to-use NFC reader modules for prototyping and integration. 2. RFID Development Kits: Kits allowing developers to experiment with and use the technology in their applications. 3. Custom PCBs: Designs incorporating the IC for specialized applications. Related Q&A 1. Q: What types of NFC tags can the ST25R3920-AQWT read? - A: The ST25R3920-AQWT can read ISO/IEC 14443 Type A and B tags, as well as ISO/IEC 15693 and ISO/IEC 18000-3 compliant tags. 2. Q: Can the ST25R3920-AQWT be used for integrated payment solutions? - A: Yes! The ST25R3920-AQWT is suitable for contactless payment terminals and can facilitate secure transactions through NFC technology. 3. Q: What are the power management features of the ST25R3920-AQWT? - A: The IC includes various power management features that allow it to operate efficiently in battery-powered devices, adjusting power consumption based on the operational mode. 4. Q: Is it possible to implement card emulation with the ST25R3920-AQWT? - A: Yes, the ST25R3920-AQWT supports card emulation mode, enabling the device to behave like an NFC card for easier interactions with NFC readers. 5. Q: What kind of interface does the ST25R3920-AQWT provide for connecting antennas? - A: The IC provides a flexible antenna interface, allowing it to connect to various external antennas for customized communication range and performance.