Any value to a fast 8255? | | 01/01/70 00:00 |
Fast 8255 | | 01/01/70 00:00 |
8255 breakeven volume | | 01/01/70 00:00 |
there are a few things ... | | 01/01/70 00:00 |
8255 vs 6824 | | 01/01/70 00:00 |
too many users failed | | 01/01/70 00:00 |
Reconfiguration | | 01/01/70 00:00 |
Yes, one had to know how the device behaved. | | 01/01/70 00:00 |
the 8255 was tough to learn, but in its crummy way | | 01/01/70 00:00 |
peaple would rather forget the 8255 | | 01/01/70 00:00 |
Why do you suppose that is, Jez? | | 01/01/70 00:00 |
raison d'etre | | 01/01/70 00:00 |
Main reason, I think | | 01/01/70 00:00 |
There are other reasons, too. | | 01/01/70 00:00 |
Thanks for sharing your experience! | | 01/01/70 00:00 |
There's also a large replacement part market. | | 01/01/70 00:00 |
but for that you have to compste with Intersil | | 01/01/70 00:00 |
Intersil still only offers the \'80\'s technology | | 01/01/70 00:00 |
May be I am wrong, but... | | 01/01/70 00:00 |
It hasn't got the same sort of ports as the 805x | | 01/01/70 00:00 |
Yes, you are right | | 01/01/70 00:00 |
8255 | | 01/01/70 00:00 |
Why would a novice build a PCB? | | 01/01/70 00:00 |
Products and packages | | 01/01/70 00:00 |
gee ... and I've never before heard of Tekmos ... | | 01/01/70 00:00 |
quick thoughts | | 01/01/70 00:00 |
You're on the right track, EXCEPT ... | | 01/01/70 00:00 |
on analogy... | | 01/01/70 00:00 |
8255 in India | | 01/01/70 00:00 |
It makes little sense to teach 8085, or does it? | | 01/01/70 00:00 |
I Agree | | 01/01/70 00:00 |
Do not attend | | 01/01/70 00:00 |
Every Collage | | 01/01/70 00:00 |
Not "College Think" | | 01/01/70 00:00 |
just had a thought - Lynn, Jez | | 01/01/70 00:00 |
Enhanced 8255 | | 01/01/70 00:00 |
If all one could get is PLCC ... | | 01/01/70 00:00 |
well i have come up with a way. | | 01/01/70 00:00 |
There is a problem with FPGA\'s ... | | 01/01/70 00:00 |
nRD is needed in the 8255 as a clock | | 01/01/70 00:00 |
Perhaps that\'s because they use latches | | 01/01/70 00:00 |
on using undefined states | | 01/01/70 00:00 |
grounding chip select is risky | | 01/01/70 00:00 |
but what if it is grounded? | | 01/01/70 00:00 |
clinging to the past | | 01/01/70 00:00 |
Don't forget the Maxim/Dallas parts, they use 5V0 | | 01/01/70 00:00 |
as usual apples and oranges | | 01/01/70 00:00 |
you need to see it from Richard's viewpoint | | 01/01/70 00:00 |
he has the right to his viewpoint ... | | 01/01/70 00:00 |
There's room for disagreement on that ... | | 01/01/70 00:00 |
"development" and "replacement" are different | | 01/01/70 00:00 |
well, for the (in)famous "universal board" | | 01/01/70 00:00 |
If there's a market, it would be for THE part | | 01/01/70 00:00 |
again mixing parametres | | 01/01/70 00:00 |
the value of an improved 8255 in legacy applicatio | | 01/01/70 00:00 |
I'm not so sure about that one ... | | 01/01/70 00:00 |
OK that was just one - bad - example... | | 01/01/70 00:00 |
My point and point of view, all along has been ... | | 01/01/70 00:00 |
let's clear up some misconceptions ... | | 01/01/70 00:00 |
8085? | | 01/01/70 00:00 |
RE:8085? | | 01/01/70 00:00 |