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OMAP L137 and OMAP L137-HT differences

vedula laxminarayana
Prodigy 50 points
Other Parts Discussed in Thread: AM1705

We are prototyping a product based on OMAP L137(256PBGA). The customer wants us to keep OMAP L137-HT(176PQFP) in mind while designing.This part is likely to be released into market in year 2011. What are the key architectural and functional difference between the OMAP L137 and OMAP L137-HT other than the package change from 256PBGA to 176 pin PQFP and higher working temparature. what functionalities/IO's have been affected due to the reduced pin count on OMAP L137-HT.Do you have any documentation in this regard?

 

 

 

 

 

 

 

 

  • 0
    TI__Guru 62975 points

    Vedula,

    Can you clarify the "HT" suffix?  Are you referring to the different temperature offerings in the standard datasheet (commercial, industrial, automotive, etc) or are you referring to a potential Hi-Rel offering?  Also, I am not aware of a current offering of standard OMAPL137 in QFP.  There is a QFP for DSP-only C6745, and a QFP for ARM-only AM1705.

    For the standard offerings, the datasheet comprehends the different temperature grades.  You would just need to worry about the loss of functionality associated with the smaller pin-count package.

    -Tommy

  • 0 in reply to tlee
    Prodigy 50 points

    Hello Tommy,

    Thansk for your qucik reply.

    w e are actually looking for details on "loss of functionality associated with the smaller pin-count package between OMAP L137 and OMAP L137-HT " apart from the obvious things like operating temperature , package  etc..

     

    any help?


  • 0 in reply to vedula laxminarayana
    TI__Guru 62975 points

    Vedula,

    I think that you will need to direct the -HT questions to the High Rel forum: http://e2e.ti.com/support/applications/high_reliability/default.aspx

    They have a much better idea of what features are derated.

    -Tommy

  • 0 in reply to tlee
    Prodigy 30 points

    I too have the same question as Vedula. In addition to that I also want to know if external memory connecting to EMIFB bus can be 512Mb or it is restricted to 256Mb as mentioned in "Characteristics of the OMAPL137 Processor" on page 7 of the datasheet. Can anyone help?

  • 0 in reply to Ashlesha Raut
    TI__Guru* 83865 points

    Hi Ashlesha

    For questions on HT devices , please use the hi-rel forums. I will send a note to the folks I know in this time to look at this thread too.

    In addition to that I also want to know if external memory connecting to EMIFB bus can be 512Mb or it is restricted to 256Mb as mentioned in "Characteristics of the OMAPL137 Processor" on page 7 of the datasheet. Can anyone help?

    It is 256 MB as stated in the datasheet.

    Let us know if you have additional quesitons.