On 12/07/2014 09:32 AM, Sean Caron wrote:
Something like a 74LS373, that's still in
production and commonly
available; you can get it from Jameco, Digi-Key, Mouser, etc. I don't think
there's really any difference in quality between manufacturers these
days... if you go to Jameco the manufacturer is often "TBD" anyway, LOL.
I would replace all with "LS" parts, don't bother trying to find an exact
replacement for that 74S part.
If they use a 74S part there, there is probably a timing
reason, S is at least
5 ns faster than LS, sometimes even 10 ns.
Jon