Overview
The ST25DV04KC-IE6S3, produced by STMicroelectronics, is a dynamic NFC/RFID tag IC that features 4-Kbit of electrically erasable programmable memory (EEPROM). This device is part of the ST25DVxxKC family, which includes the ST25DV04KC, ST25DV16KC, and ST25DV64KC, offering different memory capacities. The ST25DV04KC-IE6S3 is equipped with two interfaces: an I²C serial link and an RF link. The I²C interface operates from a DC power supply, while the RF link is activated by the received carrier electromagnetic wave, enabling contactless memory access.
Key Specifications
| Parameter | Value |
|---|---|
| Memory Capacity | 4 Kbit (512 bytes in I²C mode, 128 blocks of 4 bytes in RF mode) |
| I²C Interface | Two-wire I²C serial interface, supports 1 MHz protocol, single supply voltage: 1.8 to 5.5 V |
| RF Interface | Based on ISO/IEC 15693, NFC Forum Type 5 tag certified, supports all ISO/IEC 15693 modulations, coding, subcarrier modes and data rates |
| Write Time | Typical 5 ms for 1 up to 16 bytes from I²C, typical 5 ms for one block from RF |
| Data Retention | 40 years |
| Write Cycles Endurance | 1 million at 25 °C, 600k at 85 °C, 500k at 105 °C, 400k at 125 °C |
| Fast Transfer Mode | Fast data transfer between I²C and RF interfaces using a 256 bytes dedicated buffer |
| Energy Harvesting | Analog output pin to power external components |
| Data Protection | User memory: one to four configurable areas, protectable in read and/or write by three 64-bit passwords in RF and one 64-bit password in I²C |
| Package | 8-pin SO8N, UFDFPN 8, TSSOP-8L |
| Operating Temperature | -40 °C to 85 °C (or up to 105 °C or 125 °C depending on package) |
Key Features
- State-of-the-art patented technology from STMicroelectronics
- I²C interface with two-wire serial link supporting 1 MHz protocol and single supply voltage from 1.8 to 5.5 V
- Contactless interface based on ISO/IEC 15693 and NFC Forum Type 5 certified
- Custom fast read access up to 53 Kbit/s and support for single and multiple blocks read/write operations
- Internal tuning capacitance of 28.5 pF
- Fast transfer mode between I²C and RF interfaces using a 256 bytes dedicated buffer
- Energy harvesting capability with an analog output pin to power external components
- Data protection with configurable areas and passwords for both RF and I²C interfaces
- GPO pin for event notifications such as RF field detection and mailbox message availability
- Low power mode available in certain packages
Applications
- Communications equipment
- Computers and peripherals
- Industrial applications
- Personal electronics
Q & A
- What is the memory capacity of the ST25DV04KC-IE6S3?
The ST25DV04KC-IE6S3 has 4 Kbit of EEPROM, which translates to 512 bytes in I²C mode and 128 blocks of 4 bytes in RF mode.
- What are the operating voltage ranges for the I²C interface?
The I²C interface operates with a single supply voltage ranging from 1.8 to 5.5 V.
- What standards does the RF interface comply with?
The RF interface is based on ISO/IEC 15693 and is certified as an NFC Forum Type 5 tag.
- How long does it take to write data to the device?
The write time is typically 5 ms for 1 up to 16 bytes from the I²C interface and 5 ms for one block from the RF interface.
- What is the data retention period of the device?
The data retention period is 40 years.
- What is the endurance of the device in terms of write cycles?
The device can endure 1 million write cycles at 25 °C, 600k at 85 °C, 500k at 105 °C, and 400k at 125 °C.
- Does the device support fast data transfer between interfaces?
Yes, the device supports fast data transfer between the I²C and RF interfaces using a 256 bytes dedicated buffer.
- What is the purpose of the energy harvesting feature?
The energy harvesting feature allows the device to power external components through an analog output pin.
- How is data protected in the ST25DV04KC-IE6S3?
Data protection is provided through configurable areas and passwords for both RF and I²C interfaces.
- What is the function of the GPO pin?
The GPO pin provides notifications for events such as RF field detection, RF activity, and mailbox message availability.
- What are the available package options for the ST25DV04KC-IE6S3?
The device is available in 8-pin SO8N, UFDFPN 8, and TSSOP-8L packages.
