Rockwell NOS PPS-8/2 CPU. Very rare NOS, working, unused from factory tube. These are from
my own stock of parts here in the USA. We do not sell Chinese
counterfeits. Taken from a 1975 magazine article: Rockwell International has announced two
new microprocessor systems that form com plete 8-bit microcomputers on only two chips
Designated the PPS-8/2 family, both sys tems provide two-chip microcomputers with
CPU, one automatic serial and 16 parallel
I/O ports, l6-bit interval timer, three level interrupt, clock circuit, 64 x 8 RAM ar
and either 1024 x 8 or 2048 x 8 ROM. Both
use 109 instructions. A 3.5 rnHz crystal is
the only component required. The PPS-8/2 CPU chip (PiN 12806) contains
logic for system operations, math and data
manipulations, and can respond to three uni que interrupt request lines to provide 15
sub-level interrupts.
The
PPS-8/2
ch
(PiN
12806)
contains
logic
for
system
operations,
math
and
data
manipulations,
and
can
respond
to
three
uni-
que
interrupt
request
lines
to
provide
15
sub-l