On Thu, 2006-05-11 at 14:56 -0700, Harold Hallikainen wrote:
> I've got some bytes flying by at 27MHz and need to latch a particular
> byte. I've got a byte counter going, so I'd like a binary comparator to
> tell me when my byte's there. I used to use the 74LS688. Anything like
> that around in a modern FAST logic family running at 3.3V? I need to match
> 19 bits.

I would personally use a CPLD. The 9536 from Xilinx can easily do that.

TTYL

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