ST25DV64K
Dynamic NFC/RFID tag with 64-Kbit EEPROM and I²C
Full Specifications
| Manufacturer | STMicroelectronics |
|---|---|
| Frequency Category | NFC |
| Frequency | 13.56 MHz |
| Protocol | ISO/IEC 15693, NFC Forum Type 5 |
| Memory | 64 Kbit (8 KB) EEPROM user memory |
| Interface | RF (contactless NFC), I²C |
| Temperature Range | -40°C to +85°C |
| Form Factor | SO8, TSSOP8, UFDFPN8 |
| Security | 64-bit password protection (I²C and RF), configurable security per area |
Engineering Brief
The ST25DV64K is a dual-interface dynamic NFC tag combining contactless 13.56 MHz NFC operation (ISO/IEC 15693) with wired I²C access, featuring 64 Kbit of EEPROM organized as user-configurable memory areas. It enables simultaneous or independent access from both RF and I²C sides, with an energy harvesting output pin to power external circuits from the RF field. The chip offers password-protected areas, fast transfer mode support, and a mailbox feature for bidirectional communication between RF and I²C interfaces, making it ideal for secure IoT applications requiring both wireless smartphone interaction and embedded microcontroller access.
Typical Applications
- Consumer electronics product authentication and configuration
- Industrial sensors with wireless data logging
- Smart home appliances with NFC provisioning
- Medical devices with tamper detection
- Wearable devices with secure pairing
- Asset tracking with dual-interface access
Need a custom RFID product?
Roxtron manufactures a wide range of custom RFID and NFC products including smart cards, labels, wristbands, key fobs and industrial tags. Contact us to discuss your project and we'll respond within 24 hours.