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TIDM-NFC-SDM: Need basic understanding for NFC Tag detection IC Selection

vaibh P
Intellectual 260 points
Part Number: TIDM-NFC-SDM
Other Parts Discussed in Thread: TRF7970A

Hey hi , 

I am working with NFC technology and currently using most commonly used MFRC522 IC and tags we are using is MIFARE Classic 1K.

Now we have to switch to other NFC Tag Reader-Writer IC for better performance in case of:

-Tag Detection Range

-Power Consumption

In initial searching I found TRF7970A and TIDM-NFC-SDM .

And moreover we have to use anyhow MIFARE Classic 1K Tags only , so query is that can we use the above IC/EVM for reading and writing the MIFARE Classic 1K Tags , because what I know is the "Authentication" used in such type of tags , so is the authentication layer is included in TRF7970A ?

If not so , please suggest me the proper IC so that it can be directly used  for reading-writing the MIFARE Classic 1K tags with proper documentation or sample source code, so that it can take less time for product development.

Regards,

Vaibhav P

  • 0
    TI__Guru*** 128095 points

    Hello Vaibh,

    vaibh P said:
    And moreover we have to use anyhow MIFARE Classic 1K Tags only , so query is that can we use the above IC/EVM for reading and writing the MIFARE Classic 1K Tags , because what I know is the "Authentication" used in such type of tags , so is the authentication layer is included in TRF7970A ?

    The IC can support MIFARE Classic as discussed via this app note: http://www.ti.com/lit/pdf/sloa214

    The EVM in that TI design is no longer offered by TI and we don't have a direct replacement for it. You can use one of our LaunchPad + BoosterPack combinations but we do not provide MIFARE Classic firmware for them. You would need to port the SLOA214 to the LaunchPad.

    The TRF7970A itself does not handle authentication, that is done all on the host MCU for the TRF7970A. The TRF7970A handles the RF interface and sends data to the host MCU via the FIFO or through demodulated signals that would need to be sampled by the MCU (which is how MIFARE Classic is achieved with the device).

    The collateral in SLOA214 outlines the quickest path forward to developing with the TRF7970A for this application.

  • 0 in reply to Ralph Jacobi
    Intellectual 260 points

    Thankyou Ralph Jacobi