13 May
2004
13 May
'04
1:24 p.m.
On 13 May 2004 at 9:57, Kane, David (DPS) wrote:
Only a very minor detail, but I beleive that the
certain Zilog chip
designations also indicate the max clock speed. For instance the
Z0800110PSC is a Z8001 (Z08001.. portion), with a max clock speed of
10MHz (..10.. portion)....
The 1983 Zilog databook "Ordering Information" section designates speed
grades by letter suffix. No suffix is 4 MHZ, "A" is 6.0 MHz, and "B"
is 10
MHz, so a 10 MHz Z8001 in a plastic DIP with a 0-to-70 C temperature range
would be ordered as "Z8001B PS".
However, two things occurred to me:
1. The parts predate or postdate the databook sufficiently that the
ordering codes had changed. Are there obvious date codes on the chips?
2. The parts aren't Zilog issue at all, but rather AMD (a second-source).
Are there obvious Zilog (stylized "Z") or AMD (up/right-pointing
arrow) logos on the parts?
-- Dave