Casio CZ-1 Service Manual And Spare Parts List page 81

Pin
No. Tarmlnal
Nam*
In/Out
F
una
ion
47-64 PFO
(AS8)
-
PF7
(AS
15)
Out Upptr
address
signals
(ASS
-
AS15).
66-62 POO
(OSO)
~
PD7
(OS7)
In/Out Data
signals
(OSO
-
OS7).
63,64
VDD, Vcc +5V powtr
tourct.
Data
Read and
Write
Timing
Chart
Data
Read
Clock
pulM
(M7-OI
A07-0
(P07-0*
Ad*,-
w—
h^A^
v
r-_
Data Write
Dock
pulit
.
ALf
UWWUfh^
(PO7-0»
y
Addmi
-Ty
WR
>
Dlf
Wr
if
"
-20-