11 Mar
2005
11 Mar
'05
3:40 p.m.
I wrote:
What's wrong with CMOS parts for interfacing?
Ben wrote:
I have a rug and a cat in my apartment. Meow walk ...
zap
If your static situation is that bad, you'd better not use any
RAM, EPROM, or Flash chips made in the last 15 years. They're all
CMOS.
I forgot to add , I like things socketed.
I like things reliable. Soldered is more reliable than socketed.
If you *must* use sockets, use high quality machined-pin sockets.
I wrote:
Available in DIP. 74LVC runs on 3V but has 5V
tolerant inputs, so it
can be used to interface 3V CMOS to 5V TTL in both directions.
Ben wrote:
Now what about driving leds?
Why do you need your RAM to drive LEDs? Anyhow, 74LVC should drive
LEDs just fine.
Straight 8's look better and better all the time.
:)
I'd love to get one. Closest I have is an 8/I.
The only nontrivial electronic computing devices I have which use
no ICs are Friden EC130 and EC132 desktop electronic calculators, circa
1964 and 1965, which use lots of transistors, a delay line memory, and a
CRT display.
Eric