The ST25TB04K-AC6G6 is a dynamic NFC/RFID tag IC from the renowned semiconductor manufacturer STMicroelectronics. This integrated circuit is part of the ST25TB series, which is designed to provide a versatile and reliable solution for near-field communication (NFC) applications. This product is particularly suited for use in a wide array of industries, including consumer electronics, healthcare, logistics, and retail.

With its ISO 14443 Type B interface, the ST25TB04K-AC6G6 operates at a high frequency of 13.56 MHz, ensuring quick and secure data exchanges. It boasts a generous 4-kilobit EEPROM memory, which is partitioned into 256 blocks, each containing 16 bytes. This memory can be used to store a variety of data, such as user credentials, device configuration settings, or small amounts of user data. The EEPROM is rated for a minimum of 100,000 write cycles and a data retention of 40 years, providing long-term reliability for applications where data integrity is paramount.

One of the standout features of the ST25TB04K-AC6G6 is its energy harvesting capability, which allows it to power itself from the RF field generated by an NFC-enabled reader. This feature is particularly useful for battery-less applications, where maintaining a small footprint and minimizing maintenance is crucial.

The tag IC also includes a suite of protection features, such as a 64-bit unique identifier (UID) for each device, ensuring secure identification and anti-collision functions when multiple tags are present in the field. Additionally, the chip comes with lockable memory blocks, providing the ability to permanently secure critical data against unauthorized modifications.

Designed with versatility in mind, the ST25TB04K-AC6G6 is available in a small SO8N package, making it easy to integrate into various form factors. Whether it's embedded into a smart card, attached to a medical device, or used in a supply chain tracking system, this NFC/RFID tag IC offers a flexible and secure solution for wireless data transmission and storage.