Sanyo DWM-1000 Service Manual page 38

IC BLOCK DAIGRAM & DESCRIPTION
IC110,111,117 EM636165TS,KM416S1120DT, K4S161622D
(1 Mega x 16 Synchronous DRAM)
V 1
DD
DQ0
2
DQ1
3
V
4
SSQ
DQ2
5
DQ3 6
V
7
DDQ
DQ4
8
DQ5
9
V
SSQ 10
DQ6 11
DQ7 12
V
DDQ 13
LDQM
14
WE#
15
CAS#
16
PAS#
17
CS#
18
A11
19
A10
20
A0
21
A1
22
A2
23
A3
24
V
25
DD
IC112,113 MC74VHC244, TC74VHC244
(AFT Non-Inverted, 3-state Output)
A1
2
A2 4
A3 6
A4 8
DATA
INPUTS
B1 11
B2
13
B3 15
B4 17
OEA 1
OUTPUT
ENABLES
OEB 19
FUNCTION TABLE
INPUTS
OEA, OEB
L
L
H
PIN ASSIGNMENT
OEA 1
A1 2
YB4 3
A2 4
YB3 5
A3 6
YB2
7
A4 8
9
YB1
10
GND
50 V
SS
DQ15
49
DQ14
48
V
47
SSQ
DQ13
46
45 DQ12
V
44
DDQ
DQ11
43
DQ10
42
V
41 SSQ
40 DQ9
39 DQ8
V
38 DDQ
NC
37
UDQM
36
CLK
35
CKE
34
NC
33
A9
32
A8
31
A7
30
A6
29
A5
28
A4
27
V
65
SS
18 YA1
16 YA2
14 YA3
YA4
12
NONINVERTING
OUTPUTS
9
YB1
YB2
7
5 YB3
3 YB4
OUTPUTS
A, B YA, YB
L L
H H
X Z
20 Vcc
OEB
19
YA1
18
B4
17
YA2
16
15 B3
YA3
14
13 B2
12
YA4
11 B1
IC130 BMR-0302E (Reset)
IC131 PCM1723E (D/A Converter)
IC132 NJM4560M (OPE AMP)
A: OUT 1
A: -IN 2
A: +IN
3
4
V
EE
IC133,135,137 TC7SH08FU, NC7SZ08P5
(2 Input and Gate)
IN B
IN A
GND
IC136 TC7SHU04FU, NC7SZU04P5 (Inverter)
NC
IN A
GND
- 70 -
GND
VCC V0
1 XTI XTO 24
SCKO GNDP
2 23
3 VCP GNDD 22
NC VDD
4 21
5 MCKO RSV 20
6 ML NC 19
MC
7 LRCIN 18
8 MD DIN 17
RSTB BCKIN
9 16
10 ZERO CAP 15
11 VOUTR VOUTL 14
GNDA VCA
12 13
8 Vcc
B: OUT
7
A B
6 B: -IN
5
B: +IN
V
1
5 CC
2
OUT Y
3 4
V
1 5
CC
2
OUT Y
3
4