12 Apr
2002
12 Apr
'02
10:18 a.m.
Well, googling to see what a 'LS170 was, I found this place that has them,
along with a 'LS181!
Even at a decent price, too.
http://www.web-tronics.com/ls181.html
Looks like I found a new IC supplier :). Of course, they don't say that
they're _in_stock_, but I'm willing to bet they do carry them.
-- Pat
On Fri, 12 Apr 2002, Ben Franchuk wrote:
Richard Erlacher wrote:
Using a PROM to implement a combinatorial path
has always been the most costly
way to do it. I don't think it was as common as you suggest. Such an
application is likely to lead to very sparse ROM utilization. The ROM has a
fixed Or and fixed AND array, hence has to have many more registers in it than
a programmable logic device capable of the same logic, and, likewise, many
more than the equivalent logic implemented discretely in SSI/MSI logic.
How ever the ROM does contain ALL the possible states compared to PAL's
or discrete logic.
BTW B.G micro does sell 74LS170's, and AM2901's.
--
Ben Franchuk - Dawn * 12/24 bit cpu *
www.jetnet.ab.ca/users/bfranchuk/index.html