Panasonic WJ-FS616 Service Manual page 19

1.5.
IC145-IC150 on the Switch Board are using the 16M-Bit Dynamic RAM IC HM14265DJ68.
Description of this IC is as follows:
Vcc 1
I/O1 2
I/O2 3
I/O3 4
I/O4 5
Vcc 6
I/O5 7
I/O6 8
I/O7 9
I/O8 10
N.C. 11
N.C. 12
WE 13
RAS 14
N.C. 15
N.C. 16
A0 17
A1 18
A2 19
A3 20
Vcc 21
Pin Name I/O
1 Vcc – Power supply terminal.
2 I/O1 I/O
3 I/O2 I/O
Data Bus terminals. (16-Bit)
4 I/O3 I/O
5 I/O4 I/O
6 Vcc – Power supply terminal.
7 I/O5 I/O
8 I/O6 I/O
Data Bus terminals. (16-Bit)
9 I/O7 I/O
10 I/O8 I/O
11 N.C. – Non connection.
12 N.C. – Non connection.
13 WE I Write Enable signal input terminal.
14 RAS I Row Address Strobe Pulse input terminal.
15 N.C. – Non connection.
16 N.C. – Non connection.
17 A0 I
Address signal input terminals. (10-Bit)
18 A1 I
42 GND
41 I/O16
40 I/O15
39 I/O14
38 I/O13
37 GND
36 I/O12
35 I/O11
34 I/O10
33 I/O9
(TOP VIEW)
32 N.C.
31 LCAS
30 UCAS
29 OE
28 A9
27 A8
26 A7
25 A6
24 A5
23 A4
22 GND
Description
Pin Name I/O
20 A3 I Address signal input terminals. (10-Bit)
21 Vcc – Power supply terminal.
22 GND – Ground terminal.
23 A4 I
24 A5 I
25 A6 I
Address signal input terminals. (10-Bit)
26 A7 I
27 A8 I
28 A9 I
29 OE I Output Enable signal input terminal.
30 UCAS I Upper Column Address Strobe Pulse
input terminal.
31 LCAS I Lower Column Address Strobe Pulse
input terminal.
32 N.C. – Non connection.
33 I/O9 I/O
34 I/O10 I/O
Data Bus terminals. (16-Bit)
35 I/O11 I/O
36 I/O12 I/O
37 GND – Ground terminal.
38 I/O13 I/O
39 I/O14 I/O
Data Bus terminals. (16-Bit)
40 I/O15 I/O
41 I/O16 I/O
42 GND – Ground terminal.
16
Description