Wednesday, August 10, 2011

TI claims industry's lowest power for NFC transceiver

TI claims that the TRF7970A NFC transceiver provides
up to 2 times the battery life of competitive products

Texas Instruments has announced availability of the new TRF7970A NFC (near-field communications) transceiver, which they claim offers the industry’s lowest power, extending battery life "up to 2 times longer than competitive products" by virtue of eight selectable power modes. TI is also offering royalty-free software stacks for the TRF7970A to developers, which they say are compatible across a broad range of the company's MSP microcontrollers.

Other features of the TRF7970A NFC platform:
  • Power modes range from 1 µA to 120 mA.
  • Supports peer-to-peer communication, reader/writer capability and card emulation.
  • Supports two crystal oscillator frequencies: 13.56MHz or 27.12MHz frequencies give engineers more flexibility in speed and cost options for their designs.
  • 128 byte FIFO buffer for NFC communications allows developers using microcontrollers with low MHz to create products capable of handling large data transfers.
  • Compliance with ISO/IEC 18092 and ISO/IEC 21481 standards gives developers the ability to create globally interoperable products.
  • NFC Peer-to-Peer Initiator as well as Active and Passive Target Operation are available for MSP430™ microcontrollers.
  • Supports multiple reader/writer protocols and includes demo software stacks for reader/writer mode ISO/IEC 15693, ISO/IEC 18000-3, ISO/IEC 14443A/B and FeliCa. 
NXP Semiconductor has collaborated with Google to develop Google Wallet, a system for mobile payments
that will launch in the U.S. with the Samsung Nexus-S smartphone on Sprint.
(source "What is NFC and why it is a hot technology", IEEE Santa Clara Valley CES)

    TI is targeting the TRF070A at infrastructure devices which communicate to NFC-enabled devices such as smartphones, not for installation in the smartphone directly.  Google has recently brought attention to NFC applications in smartphones with Google Wallet, a system for transacting mobile payments that will be embedded into the Samsung Nexus-S smartphone, initially on Sprint. Google Wallet users will also be required to have a Citi MasterCard account. TI is competing in an NFC market that was co-founded by NXP Semiconductors (formerly Philips). NXP collaborated with Google to develop the Nexus-S NFC capability.

    Pricing and availability
    TI’s new TRF7970A NFC development kit is immediately available for order at for USD $99.

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