Epson PX-8 - Page 331

r- tl PD 4265
1. Location: MAPLE Board, 4D -7D And 4E -7E
MAP-RF, 1 OA - 17 A And 1 OB - 17B
2. Pin Assignments
RF
DI
W
RAS
Ao
Az
Al
Voo
~
_ ..
~
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
--
""'-
-
Vss
CAS
o OUT
As
A3
AI,
As
A7
Table 7-16 tlPD4265 Pin Assignments
Pin No.
Signal Name
In/Out
Function
-
1 RF In Refresh
2
DI In
Data IN
-
3 W In
Write enable
--
4 RAS In ROW address strobe
5,6,7
AO ~ A2
In Address
8
VDD In +5V (circuit voltage)
9
~ 13
A3 ~ A 7
In Address
14 DO
Out Data out
--
15 CAS In Column Address strobe
16 VSS In Ground
7-60
REV.-A