ViewSonic VS11856 Pro8100-1 Service Manual page 83

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12
MAD[13:0]
DDR_2.5V
U45
U45
K4D261638F
K4D261638F
TSOP66-065M-400
TSOP66-065M-400
MAD0
29
16
A0
LDQS
MAD1
30
51
A1
UDQS
MAD2
31
A2
MAD3
32
2
A3
DQ0
MAD4
35
4
A4
DQ1
MAD5
36
5
A5
DQ2
MAD6
37
7
A6
DQ3
MAD7
38
8
A7
DQ4
MAD8
39
10
A8
DQ5
MAD9
40
11
A9
DQ6
MAD10
28
13
AP/A10
DQ7
MAD11
41
54
A11
DQ8
MAD12
42
56
A12/NC
DQ9
MABA0
26
57
12
MBA0
BA0
DQ10
MABA1
27
59
12
MBA1
BA1
DQ11
60
DQ12
MDM0
20
62
LDM
DQ13
MDM2
47
63
UDM
DQ14
65
DQ15
/MCAS
22
12
/MCAS
/CAS
/MRAS
23
12
/MRAS
/RAS
/MWE
21
14
12
/MWE
/WE
NC
/MCS
24
17
12
/MCS
/CS
NC
19
NC
MCLK
45
25
12
MCLK
CK
NC
/MCLK
46
43
12
/MCLK
/CK
NC
MCLKE
44
50
12
MCLKE
CKE
NC
53
NC
MVREF
49
VREF
MDM[7:0]
12
MDM[7:0]
MDQ[63:0]
12
MDQ[63:0]
MDQS[7:0]
12
MDQS[7:0]
128 Mbit x4 = 64 MByte
200MHz
VTT
RP28
RP28
68Rx8
68Rx8
MDQ7
8
9
MDQ6
7
10
MDQ5
6
11
MDQ4
5
12
MDQ0
4
13
MDQ1
3
14
MDQ2
2
15
MDQ3
1
16
DDR_2.5V
MDQ11
68Rx8
68Rx8
RP53
RP53
9
8
MDQ10
10
7
MDQ9
11
6
MDQ8
12
5
MDQ12
13
4
MDQ13
14
3
MDQ14
15
2
MDQ15
16
1
RP26
RP26
68Rx8
68Rx8
MDQ16
C110
C110
8
9
MDQ17
7
10
47uF/10V
47uF/10V
C109
C109
MDQ18
6
11
0.1uF
0.1uF
MDQ19
5
12
MDQ23
4
13
MDQ22
3
14
MDQ21
2
15
MDQ20
1
16
Tie AVIN and PVIN
together. Place C109
68Rx8
68Rx8
RP51
RP51
MDQ28
9
8
as close as possible
MDQ29
10
7
to PVIN.
MDQ30
11
6
MDQ31
12
5
MDQ27
13
4
MDQ26
14
3
MDQ25
15
2
MDQ24
16
1
RP21
RP21
68Rx8
68Rx8
MDQ39
8
9
MDQ38
7
10
2.5V_DSP
MDQ37
6
11
MDQ36
5
12
FB15
FB15
MDQ32
FB_60OHM_0805
FB_60OHM_0805
4
13
MDQ33
3
14
MDQ34
2
15
MDQ35
1
16
68Rx8
68Rx8
RP45
RP45
MDQ43
9
8
MDQ42
10
7
C741
C741
MDQ41
11
6
MDQ40
12
5
10uF/10V
10uF/10V
MDQ44
13
4
MDQ45
14
3
MDQ46
15
2
MDQ47
16
1
RP18
RP18
68Rx8
68Rx8
MDQ48
8
9
MDQ49
7
10
MDQ50
6
11
MDQ51
5
12
MDQ55
4
13
MDQ54
3
14
MDQ53
2
15
MDQ52
1
16
MDQ60
68Rx8
68Rx8
RP43
RP43
9
8
MDQ61
10
7
MDQ62
11
6
MDQ63
12
5
MDQ59
13
4
MDQ58
14
3
MDQ57
15
2
MDQ56
16
1
68Ohm parallel
terminations
ViewSonic Corporation
DDR_2.5V
U77
U77
K4D261638F
K4D261638F
TSOP66-065M-400
TSOP66-065M-400
MDQS0
MAD0
29
A0
LDQS
MDQS2
MAD1
30
A1
UDQS
MAD2
31
A2
MDQ7
MAD3
32
A3
DQ0
MDQ6
MAD4
35
A4
DQ1
MDQ5
MAD5
36
A5
DQ2
MDQ4
MAD6
37
A6
DQ3
MDQ0
MAD7
38
A7
DQ4
MDQ1
MAD8
39
A8
DQ5
MDQ2
MAD9
40
A9
DQ6
MDQ3
MAD10
28
AP/A10
DQ7
MDQ20
MAD11
41
A11
DQ8
MDQ21
MAD12
42
A12/NC
DQ9
MDQ22
MBA0
26
BA0
DQ10
MDQ23
MBA1
27
BA1
DQ11
MDQ19
DQ12
MDQ18
MDM3
20
LDM
DQ13
MDQ17
MDM1
47
UDM
DQ14
MDQ16
DQ15
/MCAS
22
/CAS
/MRAS
23
/RAS
/MWE
21
/WE
NC
MAD13
/MCS
24
/CS
NC
NC
MCLK
45
CK
NC
/MCLK
46
/CK
NC
MCLKE
44
CKE
NC
NC
MVREF
49
VREF
DDR_2.5V
TP156
TP156
C127
C127
VTT Supply (1.00V)
R83
R83
0.1uF
0.1uF
TP180
TP180
4K99_1%
4K99_1%
C122
C122
U24
U24
TP179
TP179
0.1uF
0.1uF
G2996
G2996
SOP8-POWER
SOP8-POWER
R85
R85
5
4
VDDQ
VREF
VTT
TP157
TP157
1K_1%
1K_1%
6
3
AVIN
VSENSE
7
8
12
PVIN
VTT
2
SD
C113
C113
+
+
220uF/6.3V
220uF/6.3V
DDR_2.5V
VTT
C515
C515
C543
C543
C513
C513
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
C740
C740
0.1uF
0.1uF
VTT
C528
C528
C530
C530
C130
C130
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
VTT
C198
C198
C200
C200
C604
C604
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
80
Confidential - Do Not Copy
DDR_2.5V
16
MDQS3
MAD0
29
A0
51
MDQS1
MAD1
30
A1
MAD2
31
A2
2
MDQ24
MAD3
32
A3
4
MDQ25
MAD4
35
A4
MDQ26
MAD5
5
36
A5
7
MDQ27
MAD6
37
A6
8
MDQ31
MAD7
38
A7
10
MDQ30
MAD8
39
A8
11
MDQ29
MAD9
40
A9
13
MDQ28
MAD10
28
AP/A10
54
MDQ11
MAD11
41
A11
MDQ10
MAD12
56
42
A12/NC
57
MDQ9
MBA0
26
BA0
59
MDQ8
MBA1
27
BA1
MDQ12
60
62
MDQ13
MDM7
20
LDM
63
MDQ14
MDM5
47
UDM
MDQ15
65
/MCAS
22
/CAS
/MRAS
23
/RAS
/MWE
14
21
/WE
MAD13
/MCS
17
24
/CS
19
25
MCLK
45
CK
/MCLK
43
46
/CK
50
MCLKE
44
CKE
53
MVREF
49
VREF
VTT
VTT
MAD0
2
1
MAD1
4
3
R470
R470
MAD2
6
5
75R
75R
MAD3
8
7
33Rx4
33Rx4
PR11
PR11
MAD7
1
2
MCLK
MAD6
3
4
MAD5
5
6
MAD4
7
8
R469
R469
PR66
PR66
33Rx4
33Rx4
220R
220R
MAD12
1
2
MAD11
3
4
MAD9
/MCLK
5
6
MAD8
7
8
PR67
PR67
33Rx4
33Rx4
1
2
R468
R468
MODT
75R
75R
3
4
MODT
5
6
MCLKE
7
8
PR8
PR8
33Rx4
33Rx4
/MCS
2
1
VTT
MBA0
4
3
MBA1
6
5
MAD10
8
7
33Rx4
33Rx4
PR10
PR10
MAD13
2
1
/MWE
4
3
/MCAS
6
5
/MRAS
8
7
33Rx4
33Rx4
PR9
PR9
MDQS0
16
33Ohm parallel
MDQS1
15
MDQS2
14
terminations
MDQS3
13
MDQS4
12
MDQS5
11
MDQS6
10
MDQS7
9
68Rx8
68Rx8
C145
C145
C146
C146
C157
C157
MDM0
16
MDM1
15
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
MDM2
14
MDM3
13
MDM4
12
MDM5
11
MDM6
10
MDM7
9
68Rx8
68Rx8
C132
C132
C586
C586
C576
C576
C154
C154
C182
C182
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
C608
C608
C619
C619
C174
C174
C205
C205
C204
C204
Place VTT de-coupling caps
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
near pull-up termination
resistor networks
PRO8100-1
DDR_2.5V
U73
U73
K4D261638F
K4D261638F
TSOP66-065M-400
TSOP66-065M-400
16
MDQS7
MAD0
29
LDQS
A0
51
MDQS5
MAD1
30
UDQS
A1
MAD2
31
A2
2
MDQ56
MAD3
32
DQ0
A3
4
MDQ57
MAD4
35
DQ1
A4
MDQ58
MAD5
5
36
DQ2
A5
7
MDQ59
MAD6
37
DQ3
A6
8
MDQ63
MAD7
38
DQ4
A7
10
MDQ62
MAD8
39
DQ5
A8
11
MDQ61
MAD9
40
DQ6
A9
13
MDQ60
MAD10
28
DQ7
AP/A10
54
MDQ43
MAD11
41
DQ8
A11
MDQ42
MAD12
56
42
DQ9
A12/NC
57
MDQ41
MBA0
26
DQ10
BA0
59
MDQ40
MBA1
27
DQ11
BA1
MDQ44
60
DQ12
62
MDQ45
MDM4
20
DQ13
LDM
63
MDQ46
MDM6
47
DQ14
UDM
MDQ47
65
DQ15
/MCAS
22
/CAS
/MRAS
23
/RAS
/MWE
14
21
NC
/WE
MAD13
/MCS
17
24
NC
/CS
19
NC
25
MCLK
45
NC
CK
/MCLK
43
46
NC
/CK
50
MCLKE
44
NC
CKE
53
NC
MVREF
49
VREF
Route MVREF with a wide low inductance
trace and avoid crosstalk to other
signals.
DDR_2.5V
DDR_2.5V
Clock termination:
R136
R136
C626
C626
10K
10K
Place at end of daisy chain.
0.1uF
0.1uF
Rodd
=220|150 = 90 = Zodd or Zdiff
Reven = 75 = Zeven
R471
R471
C623
C623
10K
10K
0.1uF
0.1uF
NOTE: U27 and U30 are on the component side. U28 and U29 are
on the solder side directly beneath U27 and U30
VTT
respectively. The address bus (MAD[13:0], MBA0, MBA1), the
clock signals (MCLK, /MCLK) and the control signals (/MCAS,
1
/MRAS, /MWE, /MCS, MCLKE) connect in a daisy chain to the
2
3
four memories and then to the logic analyzer connector.
4
Place the parallel termination at the end of the daisy
5
chain.
6
7
8
RP48
RP48
1
2
3
4
5
6
7
8
RP47
RP47
RP23
RP23
MDQS0
1
16
MDQS1
2
15
MDQS2
3
14
MDQS3
4
13
MDQS4
5
12
MDQS5
6
11
MDQS6
7
10
MDQS7
8
9
NC/10Kx8
NC/10Kx8
U34
U34
K4D261638F
K4D261638F
TSOP66-065M-400
TSOP66-065M-400
16
MDQS4
LDQS
51
MDQS6
UDQS
2
MDQ39
DQ0
4
MDQ38
DQ1
MDQ37
5
DQ2
7
MDQ36
DQ3
8
MDQ32
DQ4
10
MDQ33
DQ5
11
MDQ34
DQ6
13
MDQ35
DQ7
54
MDQ52
DQ8
MDQ53
56
DQ9
57
MDQ54
DQ10
59
MDQ55
DQ11
MDQ51
60
DQ12
62
MDQ50
DQ13
63
MDQ49
DQ14
MDQ48
65
DQ15
14
NC
MAD13
17
NC
19
NC
25
NC
43
NC
50
NC
53
NC
DDR_2.5V
C180
C180
MVREF
0.1uF
0.1uF
C187
C187
0.1uF
0.1uF
MAD0
TP891 MAD0
TP891 MAD0
MAD1
TP892 MAD1
TP892 MAD1
MAD12
TP188 MAD12
TP188 MAD12
MAD13
TP893 MAD13
TP893 MAD13
MCLKE
TP187 MCLKE
TP187 MCLKE
MCLK
TP186 MCLK
TP186 MCLK
/MCLK
TP185 /MCLK
TP185 /MCLK
/MRAS
TP888 /MRAS
TP888 /MRAS
/MWE
TP890 /MWE
TP890 /MWE
MBA0
TP886 MBA0
TP886 MBA0
MBA1
TP885 MBA1
TP885 MBA1
/MCS
TP887 /MCS
TP887 /MCS
/MCAS
TP889 /MCAS
TP889 /MCAS
ViewSonic Corporation
Model
VX-210_DDR_MEMORY
Title
Date
Rev:

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