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From: faheyr@silver.ucs.indiana.edu (Bob Fahey <NECR0SIS>)
Newsgroups: comp.sys.amiga.tech
Subject: 14Mhz a500 hack & the 74f74
Message-ID: <63606@iuvax.cs.indiana.edu>
Date: 10 Oct 90 03:34:25 GMT
Sender: news@iuvax.cs.indiana.edu
Reply-To: faheyr@silver.ucs.indiana.edu (Bob Fahey <NECR0SIS>)
Organization: Indiana University, Bloomington
Lines: 19

Hi there.

I tried doing the 14Mhz a500 hack a while back, and I was wondering if one
of you hardware gurus could tell me something:

I couldn't get the 74f74 d-flip flop, but got a 74als74 instead. I was told
that it would function just as the 74f74 would (i.e. pos. edge), but I
couldnt get the thing to work properly. I don't think it was my 68000, since
I tried 3 different ones.

Is it the flip flop that causes the 14Mhz side to not come up? I mean, is
there something about the 74als74 that is different from the 74f74?

Bob Fahey

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