Overview
The ST25DV04K-IER6S3 is a dynamic NFC/RFID tag IC produced by STMicroelectronics. This device is part of the ST25DVxxx series, which includes 4-Kbit, 16-Kbit, and 64-Kbit electrically erasable programmable memory (EEPROM) options. The ST25DV04K-IER6S3 specifically offers 4 Kbits of EEPROM memory. It features dual interfaces: an I2C serial link for wired communication and an RF link for contactless communication, compliant with ISO/IEC 15693 and NFC Forum Type 5 standards. This versatility makes it suitable for a wide range of applications requiring both wired and wireless data transfer and storage.
Key Specifications
| Type | Value |
|---|---|
| Clock Frequency-Max | 13.56 MHz |
| Supply Current | 520 µA |
| Supply Voltage | 1.8 V to 5.5 V |
| Operating Temp Range | -40°C to +85°C |
| Storage Temperature Range | -65°C to +150°C |
| No of Terminals | 8 |
| Moisture Sensitivity Level | 1 |
| Package Style | SOIC-8N |
| Mounting Method | Surface Mount |
| Memory Size | 4 Kbits (EEPROM) |
| Data Retention | 40 years |
| Write Cycles Endurance | 1 million at 25 °C, 600 k at 85 °C, 500 k at 105 °C, 400 k at 125 °C |
Key Features
- I2C Interface: Two-wire I2C serial interface supporting 1 MHz protocol.
- Contactless Interface: Based on ISO/IEC 15693 and NFC Forum Type 5 standards.
- Fast Transfer Mode: Fast data transfer between I2C and RF interfaces using a 256-byte volatile buffer.
- Energy Harvesting: Analog output pin to power external components.
- Data Protection: User memory protected by three 64-bit passwords in RF and one 64-bit password in I2C.
- Interrupt Pin (GPO): Configurable on multiple RF events such as field change, memory write, activity, and Fast Transfer end.
- Low Power Mode: Available in 10-ball and 12-pin packages, triggered by an input pin.
- RF Management: RF command interpreter enabled/disabled from I2C host controller.
- Temperature Range: Operating range from -40°C to 85°C, with extended ranges for specific packages.
Applications
- Industrial Automation: For tracking and managing inventory, and for configuring industrial devices.
- Healthcare: For patient tracking, medical device configuration, and secure data storage.
- Consumer Electronics: For smart home devices, wearables, and other consumer products requiring secure and versatile data storage.
- Logistics and Supply Chain: For asset tracking and management.
- Smart Cards and Secure Access: For secure authentication and data storage in access control systems.
Q & A
- What is the operating frequency of the ST25DV04K-IER6S3?
The operating frequency is 13.56 MHz.
- What are the supply voltage and current requirements?
The supply voltage ranges from 1.8 V to 5.5 V, and the supply current is 520 µA.
- What is the memory size and type of the ST25DV04K-IER6S3?
The device has 4 Kbits of electrically erasable programmable memory (EEPROM).
- What are the key interfaces supported by this device?
The device supports both I2C and RF interfaces.
- What is the data retention period of the ST25DV04K-IER6S3?
The data retention period is 40 years.
- How many write cycles can the device endure?
The device can endure 1 million write cycles at 25 °C, 600 k at 85 °C, 500 k at 105 °C, and 400 k at 125 °C.
- What is the purpose of the GPO pin?
The GPO pin is configurable on multiple RF events such as field change, memory write, activity, and Fast Transfer end.
- Does the device support energy harvesting?
Yes, the device has an analog output pin to power external components through energy harvesting.
- How is the user memory protected?
The user memory is protected by three 64-bit passwords in RF and one 64-bit password in I2C.
- What are the typical applications of the ST25DV04K-IER6S3?
Typical applications include industrial automation, healthcare, consumer electronics, logistics, and smart cards.
