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参数资料
| 型号： | 70T631S12DDGI |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | SRAM |
| 英文描述： | 256K X 18 DUAL-PORT SRAM, 12 ns, PQFP144 |
| 封装： | 20 X 20 MM, 1.40 MM HIEGHT, GREEN, TQFP-144 |
| 文件页数： | 22/27页 |
| 文件大小： | 220K |
| 代理商： | 70T631S12DDGI |
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IDT70T633/1S
High-Speed 2.5V 512/256K x 18 Asynchronous Dual-Port Static RAM
Industrial and Commercial Temperature Ranges
4
NOTES:
1. All VDD pins must be connected to 2.5V power supply.
2. All VDDQ pins must be connected to appropriate power supply: 3.3V if OPT pin for that port is set to VDD (2.5V), and 2.5V if OPT pin for that port is
set to VSS (0V).
3. All VSS pins must be connected to ground.
4. A18X is a NC for IDT70T631.
5. Package body is approximately 20mm x 20mm x 1.4mm.
6. This package code is used to reference the package diagram.
7. 8ns Commercial and 10ns Industrial speed grades are not available in the DD-144 package.
8. This text does not indicate orientation of the actual part-marking.
9. Due to the restricted number of pins, JTAG is not supported in the DD-144 package.
VSS
VDDQR
VSS
I/O9L
I/O9R
I/O10L
I/O10R
I/O11L
I/O11R
VDDQL
VSS
I/O12L
I/O12R
VDDQR
ZZR
VDD
VSS
VDDQL
VSS
I/O13R
I/O13L
I/O14R
I/O14L
VDDQR
VSS
I/O15R
I/O15L
I/O16R
I/O16L
I/O17R
I/O17L
VSS
VDDQL
NC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
3
7
3
8
3
9
4
0
4
1
4
2
4
3
4
5
4
6
4
7
4
8
4
9
5
0
5
1
5
2
5
3
5
4
5
6
5
7
5
8
5
9
6
0
6
1
6
2
6
3
6
4
6
5
6
7
6
8
6
9
7
0
7
1
7
2
108
107
106
105
104
103
102
101
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73
1
4
1
4
3
1
4
2
1
4
1
4
0
1
3
9
1
3
8
1
3
7
1
3
6
1
3
5
1
3
4
1
3
1
3
2
1
3
1
3
0
1
2
9
1
2
8
1
2
7
1
2
6
1
2
5
1
2
4
1
2
3
1
2
1
2
1
2
0
1
9
1
8
1
7
1
6
1
5
1
4
1
3
1
2
1
0
1
0
9
V
D
N
C
N
C
A
1
8
R
(4
)
A
1
7
R
A
1
6
R
A
1
5
R
A
1
4
R
A
1
3
R
A
1
2
R
A
1
R
A
1
0
R
A
9
R
A
8
R
A
7
R
U
B
R
L
B
R
C
E
1
R
C
E
0
R
V
D
V
S
E
M
R
O
E
R
/W
R
B
U
S
Y
R
IN
T
R
M
/S
A
6
R
A
5
R
A
4
R
A
3
R
A
2
R
A
1
R
A
0
R
V
D
V
S
OPTL
VDDQR
VSS
I/O8L
I/O8R
I/O7L
I/O7R
I/O6L
I/O6R
VSS
VDDQL
I/O5L
I/O5R
VSS
VDDQR
VDD
VSS
ZZL
VDDQL
I/O4R
I/O4L
I/O3R
I/O3L
VSS
VDDQR
I/O2R
I/O2L
I/O1R
I/O1L
I/O0R
I/O0L
VSS
VDDQL
OPTR
V
D
N
C
N
C
A
1
8
L
(4
)
A
1
7
L
A
1
6
L
A
1
5
L
A
1
4
L
A
1
3
L
A
1
2
L
A
1
L
A
1
0
L
A
9
L
A
8
L
A
7
L
U
B
L
B
L
C
E
1
L
C
E
0
L
V
D
V
S
E
M
L
O
E
L
R
/W
L
B
U
S
Y
L
IN
T
L
N
C
A
6
L
A
5
L
A
4
L
A
3
L
A
2
L
A
1
L
A
0
L
V
D
V
S
70T633/1DD
DD-144(5,6,7)
144-Pin TQFP
Top View(8)
5670 drw 02a
,
03/13/03
Pin Configurations(1,2,3,8) (con't.)
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