80
www.xilinx.com
ML365 Virtex-II Pro QDR II SRAM Mem. Board
1-800-255-7778
UG066 (v1.0) June 29, 2004
Appendix 3:
Memory Board Schematics and Characterization Results
R
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
QDR_DREAD_A[35:
0
]
Q
D
R
_
D
R
E
A
D
_A
35
Q
D
R
_
D
R
E
A
D
_A
34
Q
D
R
_
D
R
E
A
D
_A
33
Q
D
R
_
D
R
E
A
D
_A
32
Q
D
R
_
D
R
E
A
D
_A
31
Q
D
R
_
D
R
E
A
D
_A
30
Q
D
R
_
D
R
E
A
D
_A
29
Q
D
R
_
D
R
E
A
D
_A
28
Q
D
R
_
D
R
E
A
D
_A
27
Q
D
R
_
D
R
E
A
D
_A
26
Q
D
R
_
D
R
E
A
D
_A
25
Q
D
R
_
D
R
E
A
D
_A
24
Q
D
R
_
D
R
E
A
D
_A
23
Q
D
R
_
D
R
E
A
D
_A
22
Q
D
R
_
D
R
E
A
D
_A
21
Q
D
R
_
D
R
E
A
D
_A
20
Q
D
R
_
D
R
E
A
D
_A
19
Q
D
R
_
D
R
E
A
D
_A
18
Q
D
R
_
D
R
E
A
D
_A
17
Q
D
R
_
D
R
E
A
D
_A
16
Q
D
R
_
D
R
E
A
D
_A
15
Q
D
R
_
D
R
E
A
D
_A
14
Q
D
R
_
D
R
E
A
D
_A
13
Q
D
R
_
D
R
E
A
D
_A
12
Q
D
R
_
D
R
E
A
D
_A
11
Q
D
R
_
D
R
E
A
D
_A
10
QDR_DREA
D
_
A
9
QDR_DREA
D
_
A
8
QDR_DREA
D
_
A
7
QDR_DREA
D
_
A
6
QDR_DREA
D
_
A
5
QDR_DREA
D
_
A
4
QDR_DREA
D
_
A
3
QDR_DREA
D
_
A
2
QDR_DREA
D
_
A
1
QDR_DREA
D
_
A
0
QDR_CQ_n
_
A
QDR
_
C
Q
_
A
Q
D
R
_
A
_
DLL_n
QDR
_
A
_
Z
Q
Q
D
R
_
DW
RITE_A5
Q
DR_DW
RITE_A29
Q
D
R
_
DW
RITE_A1
Q
D
R
_
DW
RITE_A8
Q
D
R
_
DW
RITE_A4
Q
D
R
_
SA_A4
Q
D
R_SA_A12
Q
D
R
_
DW
RITE_A0
Q
DR_DW
RITE_A28
Q
DR_DW
RITE_A25
Q
D
R
_
SA_A8
Q
DR_DW
RITE_A24
Q
DR_DW
RITE_A34
Q
DR_DW
RITE_A14
Q
D
R_SA_A17
Q
D
R
_
DW
RITE_A6
Q
DR_DW
RITE_A30
QDR_W
_n_A
Q
D
R
_
DW
RITE_A9
Q
D
R_SA_A11
Q
D
R
_
SA_A3
Q
D
R
_
SA_A7
Q
DR_DW
RITE_A15
Q
DR_DW
RITE_A20
Q
DR_DW
RITE_A11
Q
DR_DW
RITE_A17
Q
DR_DW
RITE_A31
QDR_K_A
Q
D
R_SA_A15
Q
D
R
_
SA_A2
Q
DR_DW
RITE_A10
Q
D
R
_
DW
RITE_A2
Q
DR_DW
RITE_A35
Q
D
R
_
SA_A6
Q
D
R
_
SA_A0
Q
DR_DW
RITE_A26
Q
DR_DW
RITE_A16
Q
D
R_SA_A10
Q
DR_DW
RITE_A18
Q
DR_DW
RITE_A32
Q
DR_DW
RITE_A12
Q
DR_DW
RITE_A19
Q
DR_R_n_A
Q
D
R_SA_A16
Q
D
R_SA_A13
Q
D
R
_
SA_A1
Q
D
R
_
DW
RITE_A7
Q
D
R
_
DW
RITE_A3
Q
DR_DW
RITE_A22
Q
D
R
_
SA_A5
Q
DR_DW
RITE_A27
Q
D
R
_
SA_A9
Q
D
R_SA_A[
17:
0]
Q
DR_DW
RITE_A13
Q
DR_DW
RITE_A33
Q
DR_DW
RITE_A21
Q
DR_DW
RITE_A23
Q
D
R
_
K_n_A
Q
D
R_SA_A14
QDR_C_A
Q
DR_C_n_A
Q
D
R
_
B
W
_n_A0
Q
D
R
_
B
W
_n_A1
Q
D
R
_
B
W
_n_A2
Q
D
R
_
B
W
_n_A3
Q
D
R
_
B
W
_n_A[3:0]
Q
D
R
_
B
W
_n_A0
Q
D
R
_
B
W
_n_A1
Q
D
R
_
B
W
_n_A2
Q
D
R
_
B
W
_n_A3
QDR_DW
RITE
_
A
[35:
0]
Q
D
R_SA_A[
17:
0]
QDR_DREAD_A[35:
0
]
QDR_DW
RITE
_
A
[35:
0]
Q
DR_R_n_A
QDR_K
_
A
Q
D
R_K_n_A
QDR_W
_
n
_
A
QDR_
C
Q
_
A
QDR_CQ_n
_
A
+0.
9V
_
Q
D
R
+1.8
V
GND_S
IGN
A
L
QDR_C_A
Q
DR_C_n_A
Q
D
R
_
B
W
_n_A[3:0]
+0.
9V
_
Q
D
R
+1.8
V
+1.
8V
+0.
9V
_
Q
D
R
+1.8
V
+1.
8V
+1.
8V
+1.
8V
+1.
8V
Q
D
R
_
SA_A[
17:
0]
+1.8
V
Q
D
R
_
W
R
ITE_A[35:0]
Ti
tle
Si
z
e
Doc
u
ment Num
b
e
r
R
e
v
Da
te
:
S
heet
of
<D
o
c
>
8
M
L365 Q
D
R
I
I
SRAM Inter
fac
e
Boar
d
B
52
8
01/22/04 0
9:
07:
43
QDRII SRAM 1
ZQ impedance "tuning"
set to 50 ohms
P6.1 to P6.2
= DLL enabled
P6.3 to P6.2
= DLL off
P7.1 to P7.2
= min. Z
P7.3 to P7.2 =
50 ohm Z
200MHz
-FC20
C367
0.1uF
R4
71
100
R42
1K
R4
65
100
R39
0
P6
HEADER 3
1
2
3
R4
61
100
R40
0
P7
HEADER 3
1
2
3
R4
67
100
R4
72
100
R4
60
100
R4
62
100
R4
66
100
R2
77
100
R4
68
100
R4
73
100
R2
76
100
R2
78
100
R4
63
100
R2
79
100
R4
69
100
R4
70
100
R2
80
100
R4
64
100
R41
0
K7R323684M
FBGA 165
1M x 36
4-word burst
U5
K7R323684M
TDO
R1
TDI
R11
TCK
R2
TMS
R10
/Doff
H1
VREF1
H2
VDDQ1
H3
VDDQ2
E4
VDDQ3
F4
VDDQ4
G4
VDDQ5
H4
VDDQ6
J4
VDDQ7
K4
VDDQ9
E8
VDDQ10
F8
VDDQ11
G8
VDDQ12
H8
VDDQ13
J8
VDDQ14
K8
VDDQ15
L8
VDDQ16
H9
VDDQ8
L4
VREF2
H10
ZQ
H11
NC_SA_64Mb
A3
SA0
B4
SA2
C5
SA3
C7
SA1
B8
SA17
A9
SA11
R3
SA12
R4
SA7
P4
SA4
N5
SA8
P5
SA13
R5
SA5
N6
SA6
N7
SA9
P7
SA14
R7
SA15
R8
SA10
P8
CQ
A11
/CQ
A1
/K
A6
K
B6
SA16
R9
C
P6
/C
R6
/W
A4
/R
A8
D31
J1
D30
G1
Q30
F1
D23
J3
D21
F3
Q19
D3
D19
C3
Q23
K3
D25
M3
D12
J9
Q13
G9
D14
F9
Q15
E9
D16
C9
Q16
D9
D17
B9
NC1
C6
/BW3
B5
Q25
N3
Q32
K1
Q33
L1
D33
M1
D34
N1
Q35
P1
Q18
B2
Q28
C2
D29
E2
Q21
F2
Q31
J2
D32
K2
Q34
M2
D35
P2
D18
B3
D28
D1
D27
C1
Q27
B1
Q29
E1
Q12
K9
D11
L9
VDD1
F5
VDD2
G5
VDD3
H5
VDD4
J5
VDD5
K5
VDD6
F7
VDD7
G7
VDD8
H7
VDD9
J7
VDD10
K7
VSS25
N8
VSS24
M8
VSS23
D8
VSS22
C8
VSS21
M7
VSS16
L6
VSS17
M6
VSS18
D7
VSS19
E7
VSS20
L7
VSS11
F6
VSS12
G6
VSS13
H6
VSS14
J6
VSS15
K6
VSS6
E5
VSS7
L5
VSS8
M5
VSS9
D6
VSS10
E6
VSS1
C4
VSS3
M4
VSS4
N4
VSS5
D5
D2
M11
D4
J11
D6
E10
D8
C11
D20
D2
D22
G2
D24
L3
D26
N2
Q2
L11
Q4
J10
Q6
E11
Q8
B11
Q20
E3
Q22
G3
Q24
L2
Q26
P3
D10
M9
Q10
N9
Q9
P9
Q17
B10
Q7
C10
D15
D10
Q14
F10
D13
G10
D3
K10
Q11
L10
Q1
M10
D9
N10
D0
P10
D7
D11
Q5
F11
D5
G11
Q3
K11
D1
N11
Q0
P11
/BW0
B7
/BW2
A5
VSS_SA_128Mb
A10
VSS_SA_256Mb
A2
VSS2
D4
/BW1
A7
R38
249 1%
R2
81
100
Product Not Recommended for New Designs