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dominique23
Visitor II
January 7, 2003
Question

using ST7F521 with 3.3V devices

  • January 7, 2003
  • 4 replies
  • 1093 views
Posted on January 07, 2003 at 11:04

using ST7F521 with 3.3V devices

    This topic has been closed for replies.

    4 replies

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    dominique23Author
    Visitor II
    January 7, 2003
    Posted on January 07, 2003 at 05:45

    I would like to use ST7F521 with a 3.3V Fpga, I have been said that the 2 additionnal port (G and H) of the 80 pins version are TTL whereas the port in the 64pin version are all in true cmos level (3.5v min for H level).

    I want to have confirmation of this information.

    Thanks.
    S
    sjo
    Visitor II
    January 7, 2003
    Posted on January 07, 2003 at 08:16

    The additional ports are TTL but your main concern would be that the newer revision silicon (datasheet v1.6) supports only 3.8-5.5v operating conditions.

    Regards

    Spen
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    dominique23Author
    Visitor II
    January 7, 2003
    Posted on January 07, 2003 at 09:41

    thanks you very much but where can I find this version of the datasheet, I don't find it on this site...

    S
    simms
    Visitor II
    January 7, 2003
    Posted on January 07, 2003 at 11:04

    should be accessible from this site by selecting ST72521 product from the home page

    try this link too, if it helps...

    http://us.st.com/stonline/books/pdf/docs/7601.pdf
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