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Memory/Storage??

RFID chip offers global interoperability, optimized performance

Posted: 19 Sep 2005 ?? ?Print Version ?Bookmark and Share

Keywords:stmicroelectronics? stm? uhf? ultra-high frequency? memory chip?

STMicroelectronics (ST) introduced a UHF (Ultra-High Frequency) contactless memory chip that complies with the latest Electronic Product Code (EPC) specifications. According to the company, the new XRAG2 meets the key requirements for next-generation supply chain and logistics applicationsglobal interoperability, enhanced security and optimized performance.

The XRAG2 is a full-featured, low-cost IC designed for use in RFID tags or electronic labels, operating at a range of UHF frequencies from 860MHz to 960MHz. According to the company, this frequency agility ensures that the same tag can be applied and read at any place in the world, regardless of the geographically varying wireless regulations.

The XRAG2 is a 432-bit memory offering two possible configurations, allowing the tag to store dedicated industrial codes: three memory banks (64 bits TID, 304 bits for EPC code and 64 bits reserved), or four memory banks (128 bits user, 64 bits TID, 176 bits for EPC code and 64 bits reserved).

Developed using a highly reliable and mature CMOS technology with embedded EEPROM, added ST, the XRAG2 is well-suited to high-volume, cost-driven markets. Its non-volatile memory technology features 40-year data retention and more than 10,000 Write/Erase cycles to support the requirements of long-life applications. Additionally, this product features a fast and flexible anti-collision mechanism that allows the reader to detect and correctly identify all tags in its operating range. The XRAG2's security mechanisms include password-protection against tampering and the KILL command that supports disabling tags in the field so their data can never again be accessed.

At facilities with more than 10 readers, XRAG2 chips are capable of operating in the dense-reading mode, which minimizes interference by allowing readers to transmit within a different sub-band from the one within which the tags respond.

Engineering samples of the XRAG2 are now with key partners, with full sample availability scheduled within the next few weeks and volume production expected by December 2005. Priced at 7 cents in 100,000-unit quantities, the IC can be ordered in thin un-sawn wafers, or in bumped and sawn wafers.




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