From: "John Honniball"
<coredump(a)gifford.co.uk>
Dwight K. Elvey wrote:
Does anyone have any data books with the specs
and signals for Rockwell's 4 bit processors that
they made during the late 70's? These were in a
funny flat pack called spider chips.
I have a book by Steve Money called "Microprocessor Data Book", and
it lists three Rockwell 4-bit chips, the MM75, MM76 and MM78. They
make up the PPS4/1 Series. Are they the ones you are interested in?
--
John Honniball
coredump(a)gifford.co.uk
Hi John
Hard to say. The chips I have all have inhouse numbers on them.
It sure does sound like the right stuff though. The chips are
all 42 pin spider chips.
Dwight