Epson PX-8 Technical Manual page 66

Observed O-RAM Control Signal Waveforms
(Top) W1 :
Measured at 6A. pin 18
(Second form top) RAS 1 :
Measured at 6A. pin 17
(Second from bottom) CAS 1 :
Measured at 6A. pin 44
(Bottom) RF:
Measured at 6A. pin 40
2-42
G
G
G
5V
5V
>2uS
-JDDDDDf
lllJIIO
run
ru[]
rmon
=mJITDilllITDITD[
REV.-A
G ----------------------------
5V 5V
Enlarged
5 V 5 V
>
1 uS
G
---=--" _ _ _ _
U ___
U"-----___"' L f ___
G •
G "
G
--'-J.LII _ _ ' _.
d _ - - - I . L
4
'1_+ __
*
5V
5 V
Fig. 2-38 W1, RAS1, CAS1, and RF