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Looking for USB host chip with PCIe

Discussion in 'Embedded' started by Allan Herriman, Sep 7, 2010.

  1. Hi,

    I'm finding it hard to locate a suitable device for a new design of mine.

    The hypothetical part would be a PCI Express endpoint (x1, rev 1 or rev 2)
    to two host ports of UsB2.

    I've looked at:

    - Renesas/NEC μPD720200 (2xUSB3)
    - PLX OXPCIe200 (2xUSB2+UART+GPIO)
    - Pericom PI7C9X442SL (4xUSB2)
    - Moschip MCS9990 (4xUSB2+GPIO)

    These would all do the job, however they are either in BGAs with a 0.65mm
    pitch, or QFPs with a 0.4mm pitch. Such fine pitches will increase
    manufacturing costs more than I'd like.

    Does anyone know of other UsB host controllers?

    Allan Herriman, Sep 7, 2010
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  2. Allan Herriman

    Chris Maryan Guest

    MPC8308 and a bunch of other chips in the MPC8xxx family. That gets
    you 0.8mm pitch BGAs. Somewhere there may be a 1mm pitch BGA processor
    with the features you want. But if you want TQFP or something like
    that, I doubt that you'll find anything at all with PCIe.

    Chris Maryan, Sep 7, 2010
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  3. Sorry I didn't make it clearer - I'm not after a processor, just a
    peripheral to attach to a single lane of PCIe.

    0.8mm pitch BGA would be fine.

    I've also seen plenty of plug in PCIe cards that have a PCIe to PCI
    bridge, then a PCI to 4 (or more) host ports of USB. That would get the
    job done, but I'm after a single chip due to area constraints.

    Allan Herriman, Sep 8, 2010
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