11 Jul
2004
11 Jul
'04
2:31 p.m.
On Sun, Jul 11, 2004 at 10:18:32PM -0400, William Donzelli wrote:
While I think that the last round of static PETs may have had 2114s,
every one I've ever seen used 6550s, a 22 pin .4"-wide DIP...
http://www.amiga-stuff.com/hardware/6550.html
I don't know without consulting the schematics if the static PET board
depend on there being 4 chip selects, but if it doesn't, it would be
easy to make a small PCB that fits in a 6550 socket, and houses a 2114.
-ethan
--
Ethan Dicks, A-130-S Current South Pole Weather at 12-Jul-2004 02:20 Z
South Pole Station
PSC 468 Box 400 Temp -89.5 F (-67.5 C) Windchill -129.6 F (-89.8 C)
APO AP 96598 Wind 10.1 kts Grid 081 Barometer 675.9 mb (10780. ft)
Ethan.Dicks(a)amanda.spole.gov http://penguincentral.com/penguincentral.html
Given how hard
it is to find those SRAMs, it might be easier to make a
daughter card that fits into the CPU socket that has a JEDEC SRAM socket
(for a 6116, 6264, 62256...), and use A15 as a low-true enable to put it
below $8000.
2114s are hard to find? Are they some weird variant (speed, power)?