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Visitor II
September 21, 2018
Solved

Which ST25 IC do I need?

  • September 21, 2018
  • 1 reply
  • 628 views

I need to specify an RFID IC for bidirectional data exchange with an Android mobile phone. I will be using the NFC to update the firmware on an MCU in the system with a flash size of 32kB. The other application is the for the system to transfer up to 64kB of data to the phone. I'm finding it difficult to understand the differences between the ST25 chips, some use case examples would be helpful. Thanks for any advice.

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    Best answer by France Berthelot

    Hello

    Please see following IC ST25DVxxx which offer a fast transfer mode between the RF and contact worlds, thanks to a 256 bytes volatile buffer (also called Mailbox).

    https://www.st.com/en/nfc/st25dv-i2c-series-dynamic-nfc-tags.html?querycriteria=productId=SS1950

    We provide also a reference implementation of some Android use cases which demonstrates FW update, Pictures transfer or simple data exchange.

    https://www.st.com/content/st_com/en/products/embedded-software/st25-nfc-rfid-software/stsw-st25001.html

    The ST25DV-DISCOVERY is a demonstration kit to evaluate the features and capabilities of the ST25DV series. It is based on the NFC ST25DV04K device embedded on a daughter card using a Class 5 antenna and a STM32 processor driving a mother board. A dedicated software stored in the Flash memory is provided.

    https://www.st.com/content/st_com/en/products/evaluation-tools/product-evaluation-tools/st25-nfc-rfid-eval-tools/st25-nfc-rfid-eval-boards/st25dv-discovery.html

    Hope we have provided main keys inputs regarding your request.

    1 reply

    ST Employee
    September 24, 2018

    Hello

    Please see following IC ST25DVxxx which offer a fast transfer mode between the RF and contact worlds, thanks to a 256 bytes volatile buffer (also called Mailbox).

    https://www.st.com/en/nfc/st25dv-i2c-series-dynamic-nfc-tags.html?querycriteria=productId=SS1950

    We provide also a reference implementation of some Android use cases which demonstrates FW update, Pictures transfer or simple data exchange.

    https://www.st.com/content/st_com/en/products/embedded-software/st25-nfc-rfid-software/stsw-st25001.html

    The ST25DV-DISCOVERY is a demonstration kit to evaluate the features and capabilities of the ST25DV series. It is based on the NFC ST25DV04K device embedded on a daughter card using a Class 5 antenna and a STM32 processor driving a mother board. A dedicated software stored in the Flash memory is provided.

    https://www.st.com/content/st_com/en/products/evaluation-tools/product-evaluation-tools/st25-nfc-rfid-eval-tools/st25-nfc-rfid-eval-boards/st25dv-discovery.html

    Hope we have provided main keys inputs regarding your request.