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chip variations

Tianlei Zhang
Expert 1320 points

Other Parts Discussed in Thread: TM4C129ENCPDT, TM4C1292NCPDT, TM4C129DNCPDT, TM4C1294KCPDT, TM4C129EKCPDT

Hi,

I am confused with TI's chip selector. A while ago we selected TM4C129ENCPDT and recently finished our hardware design. Today when I went back to TI's web site to verify the information, this part no longer shows up in TI's part selector. If I google this part, I can still find this part at TI's web site and the status of this part is still 'active'. 

If I search for the similar part from the selector, I get TM4C1292NCPDT or TM4C129DNCPDT with no feature differences.

Can anybody look at following 3 parts and answer my question:

A: TM4C129ENCPDT

B: TM4C1292NCPDT

C: TM4C129DNCPDT

1. Is A still available? why it does not show up in the selector?

2. If we have to use B or C, what the difference between them?

  • 0
    Guru 20670 points
    Hi Tianlei,

    It seems that C has data protection while B does not, it seems that's the only blunt difference.

    By chip selector do you mean that "search by features" product selection? I simply have chosen a 128TQFP package and 1024 flash and I could see part A in the results.
    Could you please clarify which selector you are speaking of?
  • 0 in reply to Luis Afonso
    Expert 1320 points
    More, I found something is wrong with the information provided by TI. If you compare the two chips
    TM4C1294KCPDT
    TM4C129EKCPDT
    The popup window shows no difference between the two chips. Also, it shows
    10/100 ENET MAC No
    for both.
    This does not seem to be true, since if you open the datasheet of the chips, they both support the ENET.
  • 0 in reply to Luis Afonso
    Expert 1320 points
    Thanks. The following is the link of chip selector.
    www.ti.com/.../products.page
    Where is the 'search by feature' option?
  • 0 in reply to Tianlei Zhang
    Guru 20670 points
    Hi Tianlei,

    About the ENET, it seems that the Parametric distinguish 10/100 ENET MAC (without PHY) and 10/100 ENET MAC + PHY. Now that's what I call confusing. If you notice all the other parts referred have those parametrics too (the ENET ones).
    Maybe a TI employee could clarify if that is indeed how the parametric table works.

    When I used the selector in the link you provided I found with no problems the TM4C129ENCPDT. I selected the TM4C family, flash 1024Kb and 90 GPIOs to refine the search.
    Maybe "feature" was not the best way I could have put it. I used a selector very much like what you used but instead it was for the TM4C only instead of for "Control + Automation MCUs"