ST25DV16KC
NFC
Dynamic NFC/RFID tag IC with 16-Kbit EEPROM, and fast transfer mode capability
The ST25DV04KC, ST25DV16KC, and ST25DV64KC devices (hereinafter referred collectively to as ST25DVxxKC) are NFC RFID tags offering, respectively, 4, 16, and 64‑Kbit of electrically erasable programmable memory (EEPROM). These devices feature two interfaces: the first one is an I²C serial link that can be operated from a DC power supply, the second one is an RF link activated when the device acts as a contactless memory powered by the received carrier electromagnetic wave.
In I²C mode, the user memory contains 512 (ST25DV04KC), 2048 (ST25DV16KC), or 8192 (ST25DV64KC) bytes, which can be split in four flexible and protectable areas.
In RF mode, following ISO/IEC 15693 or NFC Forum Type 5 recommendations, the user memory contains 128 (ST25DV04KC), 512 (ST25DV16KC), or 2048 (ST25DV64KC) blocks of 4 bytes, which can be split in four flexible and protectable areas.
These devices offer a fast transfer mode between the RF and contact interfaces, thanks to a 256 bytes volatile buffer (also called mailbox). In addition, the GPO pin provides data about incoming events, like RF field detection, RF activity in progress, or mailbox message availability. An energy harvesting feature is also available.
Features
- ISO 15693 NFC Forum Type 5
- I2C: 1MHz from 1.8 to 5.5V
- Energy harvesting
- Configurable Output signal (GPO)
- Industrial temperature range up to 125°C
- EEPROM data retention of 40 years
- EEPROM endurance 1million write cycles
Applications
- Asset tracking and logistics
- Consumer electronics
- ESL (Electronic Shelf Label)
- Smart home
- Lighting & Metering
Benefits
- Quick firmware upgrade
- Enables battery-less designs
- Simple and cost-effective
- Flexible password protection scheme
Block diagram
