3 Dec
2008
3 Dec
'08
10:42 a.m.
Chuck Guzis wrote:
There are inexpensive SMT to through-hole adapters
available. While
I wouldn't trust myself to carefully hand-solder a whole board full
of SMT, the adpaters are fairly easy to do.
Can one still get CPLDs in PLCC? Sockets for those are still throug-
hole. Would one be large enough?
Yes, and yes 5V power supply too. Get a Digi-key catalog for details.
The old MMI pal design book, had a 300? buad terminal all 20 pin fuse
pals ... no cpu.
5 volt logic also seems to be poised to go the way of
through-hole
devices.
You are limited to 64 I/O pins with the Atmel CPLD's I am using -
84 pin plcc's. The big problem is none of the PCB design programs
have a thu the hole plcc footprint that I know of.
But sometimes ya gotta do what ya gotta do.
Cheers,
Chuck