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NFC Forum releases four tag type specs

Posted: 03 Aug 2007 ?? ?Print Version ?Bookmark and Share

Keywords:tag type specs? interoperability? contactless products?

The NFC Forum has issued four tag type technical specifications promoting interoperability across the NFC market. The new specs will enable low-cost volume production and clear the path to a global, cost-effective mass market, the announcement said. More than one billion NFC-ready tags are already deployed worldwide for use in areas such as accessing public transportation, hotel rooms and offices.

Building on existing technology, the forum's tags are based on the ISO 14443 Type A and B standards and Sony's FeliCa. The four tag types are all based on existing contactless products and are available commercially.

Inteoperability backbone
The NFC Forum has mandated that the four tag types be operable with NFC devices. This mandate is the backbone of interoperability between NFC tag providers and NFC device manufacturers to ensure uniform user experience. The tag specifications are the most recent in a series of specifications being developed by the NFC Forum. The NFC Data Exchange Format specification and four Record Type Description specifications were released in 2006.

"It is essential to the adoption and growth of NFC technology that all NFC-enabled devices interoperate seamlessly and deliver a consistent user experience," said Christophe Duverne, chairman, NFC Forum. "By publishing these four tag types, the NFC Forum is taking great strides towards putting the power of NFC in the hands of consumers around the world."

The operation specifications for the NFC Forum tag types, numbered 1-4, provide the technical information required to implement the reader/writer and associated control functionality of the NFC device, enabling interaction with the tags.

Tag types
Both Type 1 and 2 tags are based on ISO14443A, read and re-write capable and allows users to configure the tag to become read-only. Memory availability is 96bytes and expandable to 2Kbyte with communication speed at 106Kbps for Type 1. Meanwhile, Type 2 tags have memory availability of 48bytes and expandable to 2Kbyte with communication speed at 106Kbps.

Type 3 tag is based on the Japanese Industrial Standard, also known as FeliCa. Tags are pre-configured at manufacture to be either read and rewritable, or read-only. Memory availability is variable, theoretical memory limit is 1Mbyte per service; communication speed is 212Kbps or 424Kbps.

Type 4 tag is fully compatible with ISO14443A and B standards. Tags are pre-configured at manufacture to be either read and rewritable, or read-only. Memory availability is variable, up to 32Kbytes per service; communication speed of up to 424Kbps.

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