Sega CD II User Manual

IC102/103 1Mblt Dynamic RAM
IC104/105
8blt CMOS Static RAM
IC TC511664BJ-80
IC UPD421664-80
IC TC421664LE-70
IC UPD421664-80L
•Top View & Pin Layout
GND
11015
11015
11014
11013
11012
AO-A7 : Address inputs
11011
11010
1/01-1/016 : Data inputs/outputs
1109
RAS
: Row address strobe
IC CKX5864BM-70
IC MB8464-90
IC M88464-80
•Top View & Pin Layout
1 A
10
CE
1
AO-A 12 : Address inputs
1/01-1/08 : Data inputs
CE1.CE2 : Chip enable 1/2 inputs
WE : Write enable input
1 NC
CAS : Column address strobe
1
llOa
OE : Output enable input
GND
CAs
OE
NC
NC
NC
A1
As
A5
1 GND
IC106 CD-ROM LSI
IC LC89515
•TopView
80
• Description
No . 1/0
Pin Name
I
- V~c:.
2 0
RA6
3
0
RA7
4
0
RAB
5
0
RA9
6
0
RAIO
7
0
RAll
8
0
RA12
9
0
RAI3
10
0
RA14
I I
0
RAIS
I2
0
RWE
I3
-
Vss
I4
0
ROE
IS
110
ERA
I6
110
108
I7
1/0
I07
18
110
106
I9 1/0 105
20
110
I04
20
uw
LW
OE
vcc
GND
NC
64
: High-order byte write
enable
: Low-order byte write
enable
: Output enable
:
Supply voltage
: Ground
: Not connected.
41
24
No. 1/0 Pin Name
21 1/0 103
22 1/0 I02
23
110 IOI
24
-
V~c:.
25 I EXT AL
26
0
XTAL
27
I TESTA
28 I TESTS
29
I CSEL
30 I
LMSEL
31
-
Vnn
32 I LRCK
33 I SDATA
34 I BCK
35 I C4LR
36
I C2PO
37
0
MCK
38
1/0
DO
39 110 DI
40 110 02
Vee : +SV supply
GND : Ground
NC : Not connected.
No.
1/0
Pin Name No. 1/0 Pin Name
41
-
Vss
61 0
EOP
42 1/0
D3
62
0
RCS
43
1/0
04
63
0
HDE
44 1/0 DS 64
-
V~c:.
45 1/0 06 65 I/O
HD7
46 1/0 07
66
l/O HD6
47
I
RS
67
1/0
HD5
48 I
RD
68
I/O
HD4
49 I
WR
69 1/0
HD3
50
I
cs
70 1/0 HD2
51 0
INT
71
1/0
HDl
52 -
Vs..,, 72
I/O HOO
53 I
RESET
73
-
Ynn
54 I
ENABLE
74 I
SELDRO
55
I
HRW
75
0
RAO
56 I
HRD
76
0
RAl
57 I
CMD
77
0
RA2
58
0
WAIT
78
0
RA3
59 0
DTEN
79
0
RA4
60 0
STEN
80
0
RAS

Sega CD II Specifications

General

Brand	Sega
Model	CD II
Category	Game Console
Language	English