16 Nov
2004
16 Nov
'04
10:20 a.m.
Paul Koning wrote:
'Generally' is right. 9 times out of 10 you can use 74F in place of 74S
(if the right function exists, which is by no means certain). The tenth
time, the F part is too fast, or causes too much ground bounce, or ...
-tony
Tore> But access to a complete array of
spares if nessecary. Oh, and
Tore> the CPU is built in TTL logic, so no hard-to-get spares.
TTL is getting hard to find, especially the more obscure types such as
74S series. (And if the book says they want 74S, it's quite possible
no other variant will work...)
paul
I thought that 74F series parts were generally replacements for 74S
parts. Is this incorrect? A more serious concern is that the parts