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RI-INL-R9QM: What software/hardware do I need to write to this RFID

Karla Witte
Prodigy 40 points

Part Number: RI-INL-R9QM

Looking for an independent system that can write to this RFID and also to RI-INL-R9QM-30.  

We would like to use a public key encryption to write/read to the memory the date the tag was created, first seen and when pulled from inventory.

 

  • 0
    TI__Guru*** 128195 points
    Hello Karla,

    Unfortunately, those tags are read only transponders. You won't be able to write to them.

    Is there a specific reason you want to use LF RFID rather than HF RFID for your application? We do have HF RFID offerings which would allow for such an application in our Tag-It transponder line.
  • 0 in reply to Ralph Jacobi
    Prodigy 40 points

    Hello Ralph,

    No we can us a HF RFID if that will allow us to read write.  We were using the RI-INL-W9QM part but it is being discontinued.  

    Karla

  • 0 in reply to Karla Witte
    TI__Guru*** 128195 points
    Hello Karla,

    Let me check with the product marketing to verify if there are no replacements for RI-INL-W9QM with existing users first, and then if not we can discuss what HF options may make sense for your system.
  • 0 in reply to Karla Witte
    TI__Guru*** 128195 points

    Hello Karla,

    There isn't any replacement for the RI-INL-W9QM. As mentioned before the RI-TRP-DR2B does offer write capability. Depending on the expected size of your application though, it may be possible to use the RI-INL-W9QM as there is still stock, it's just on LIFEBUY status as when stock runs out then there will be no more. So for low volumes it could be viable if you really don't want to change technologies, though obviously carries risk.

    As far as HF RFID goes, typically an application which involves basic encryption like hashes and the storage of time data would fit will with ISO15693 tags. For example, the TI Tag-It HF-I Plus tag has 256 Bytes of space for storage of data. The tags are organized into 'blocks' of 4 bytes per block, and each tag comes with an 8 byte UID permanently programmed (some hashes even use that UID as part of the algorithm).

    As far as options for HF RFID readers, I'd say browse through our FAQ guide for starters, you should find everything you need there including information about read range etc.: http://www.ti.com/lit/pdf/sloa246