2 Jul
2012
2 Jul
'12
1:34 p.m.
On 07/02/2012 01:24 PM, Chuck Guzis wrote:
I haven't gone and checked, but I do recall pretty clearly that they
specify a 330 ohm pullup on the clock line of a Z80, not 10K.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
Output ->
VCC 5.23 MOhm
Output -> GND 5.20 MOhm
VCC -> Output 11.21 MOhm
GND -> Output 11.20 MOhm
Interesting--so they're apparently using a "naked" totem-pole output
stage with no pullup. Interesting--I thought that Zilog always
specified at least a 10K pullup on the clock input.
Rules were made to be broken, I guess.