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Re: gEDA-user: CPLDs and other high-density logic chips...

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Subject: Re: gEDA-user: CPLDs and other high-density logic chips...
From: DJ Delorie <dj@xxxxxxxxxxx>
Date: Sun, 3 Sep 2006 14:08:55 -0400
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> If I were to drop the CPLD and just go with an FPGA, how would I be
> able to couple this to 5V logic?

Read the Spartan docs.  For example, it is 3.3v but can drive a high
enough Voh to meet 5v TTL input specs (~2.4v), and the inputs are also
5v tolerant.  They might meet your requirements.

Else, OC drives with a 5v pullup might work.


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- Re: gEDA-user: CPLDs and other high-density logic chips...
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References:
- gEDA-user: CPLDs and other high-density logic chips...
  - From: Samuel A. Falvo II
- Re: gEDA-user: CPLDs and other high-density logic chips...
  - From: John Sheahan
- Re: gEDA-user: CPLDs and other high-density logic chips...
  - From: Mike Jarabek
- Re: gEDA-user: CPLDs and other high-density logic chips...
  - From: Bob Paddock
- Re: gEDA-user: CPLDs and other high-density logic chips...
  - From: Samuel A. Falvo II

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