From: Jim Brain (brain_at_jbrain.com)
Date: 2007-05-28 04:08:19
Bil Herd wrote:
> The area you have to watch is that the data is valid for only a short
> period after Phi goes low, known as the hold time. Holdtimes are as
> short as 10-20 ns (shorter if using Phi2) which means that if you have
> too much logic in line to create the strobe, the data goes away before
> the strobe (took you longer than 10ns to decide to do something). Rule
> of thumb is the strobe has time for only one level of TTL type logic on
> anything trying to capture data.
>
So, for something a bit more time intensive, are there any suggestions?
Delay after Phi2 going Hi to start the work?
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