Source/Cross for 74S573

Hey All,

        I'm trying to fix my Lunar Lander, and I'm pretty sure that
I need some 74S573 PROMS. I went to my local surplus store, and in
one of life's cruel ironies, they had PLENTY of 74F573s. I jumped
for joy, figuring that these were the same thing, because no one
would EVER change the functionality of a TTL number, but when I
looked these up in IC master, the 74S573 is the PROM, and the
74F573 is some kind of latch. Grrrrr...

        What I'm trying to figure out is the equivalent 82Sxxx
part number so I have more stuff to look for. The 74S573 is a
1024 x 4 PROM, I believe. Is this a 82S137? I forget and have no
way to look this stuff up at work....

        Anyone know of any good, cheap sources for this chip, or
any of its crosses?

Thanks,

Joe

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Joseph J. Welser jwelser@ccwf.cc.utexas.edu
Design Engineer -- Crystal Semiconductor Corporation
Ph.D. Student in E.E. -- University of Texas at Austin
Work: jwelser_at_crystal.cirrus.com http://www.crystal.com
P.O. Box 17847; Austin, TX 78760
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Received on Tue Nov 25 08:58:17 1997