ST25DV64KC
The STMicroelectronics ST25DV64KC is an NFC tag IC, with 64 Kbit (8 Kbyte) EEPROM user memory, operating at 13.56 MHz, under ISO/IEC 15693 NFC Forum Type 5.
Dynamic NFC/RFID tag IC with 64 Kbit EEPROM, fast transfer mode, and energy harvesting for IoT applications
Full Specifications
| Manufacturer | STMicroelectronics |
|---|---|
| Frequency Category | NFC |
| Frequency | 13.56 MHz |
| Protocol | ISO/IEC 15693, NFC Forum Type 5 |
| Memory | 64 Kbit (8 Kbyte) EEPROM user memory |
| Interface | RF (contactless), I2C |
| Temperature Range | -25°C to +85°C |
| Form Factor | SO8N, TSSOP8, UFDFPN8 |
| Security | 64-bit password protection, configurable security per area, write protection |
Engineering Brief
The ST25DV64KC is a dynamic dual-interface NFC/RFID tag IC offering both contactless RF (13.56 MHz) and wired I2C communication to a host microcontroller. It features 64 Kbit of EEPROM with fast transfer mode, energy harvesting capability to power external circuits, and a configurable GPO interrupt pin for mailbox-based communication between RF and I2C sides. Security includes multi-area password protection and write-lock features, making it ideal for IoT applications requiring wireless configuration, data exchange, and low-power operation.
Typical Applications
Standards & Compliance
Frequently Asked Questions
What is the memory size of the ST25DV64KC?
The ST25DV64KC has 64 Kbit (8 Kbyte) of EEPROM user memory that can be accessed via both RF contactless interface and I2C wired connection.
Does the ST25DV64KC support dual interface communication?
Yes, the ST25DV64KC features both contactless RF (13.56 MHz NFC/RFID) and wired I2C interfaces, allowing simultaneous access from a smartphone/reader and a host microcontroller.
What security features does the ST25DV64KC offer?
The ST25DV64KC provides 64-bit password protection with configurable security per memory area and write protection capabilities to secure stored data against unauthorized access or modification.
Can the ST25DV64KC power external circuits?
Yes, the ST25DV64KC includes energy harvesting capability that can extract power from the RF field to supply external circuits, enabling battery-free operation for low-power applications.
What is the fast transfer mode on the ST25DV64KC?
The ST25DV64KC supports ISO/IEC 15693 fast transfer mode, enabling higher data throughput for quicker read and write operations compared to standard mode, ideal for applications requiring rapid data exchange.
How does the mailbox feature work on the ST25DV64KC?
The ST25DV64KC mailbox allows bidirectional communication between the RF and I2C interfaces using a configurable GPO interrupt pin, enabling the RF side and microcontroller to exchange messages asynchronously.
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