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參數(shù)資料
| 型號： | W24257ACQ-10 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | SRAM |
| 英文描述： | 32K X 8 STANDARD SRAM, 10 ns, PDSO28 |
| 封裝： | 8 X 13.40 MM, TSOP1-28 |
| 文件頁數(shù)： | 10/10頁 |
| 文件大小： | 149K |
| 代理商： | W24257ACQ-10 |
W24257AC
Publication Release Date: October 1998
- 9 -
Revision A1
Package Dimensions, continued
28-pin SO Wide Body
2
1
A
28
15
14
1
e
S
E
H
b
Seating Plane
A A
y
L
e
c
See Detail F
D
E
1
e
Detail F
1. Dimensions D Max. & S include mold flash
or tie bar burrs.
2. Dimension b does not include dambar
protrusion/intrusion.
3. Dimensions D & E include mold mismatch
and are determined at the mold parting line.
.
0.25
0.20
0.010
0.008
Notes:
Symbol
Min. Nom.
Max.
Nom.
Min.
Dimension in Inches
Dimension in mm
A
b
c
D
e
HE
L
y
A
L E
1
2
E
0.014
0.36
0.112
2.85
0.004
0.093
0.014
0.098
0.016
0.103
0.020
2.36
0.36
0.10
2.49
0.41
2.62
0.51
0.059
0.004
0
10
0.713
0.067
0.733
0.075
1.50
18.11
1.70
18.62
1.91
0.477
0.465
0.453
12.12
11.81
11.51
10
0
0.10
8.53
8.41
8.28
0.336
0.331
0.326
0.71
0.91
1.12
0.028
0.036
0.044
4. Controlling dimension: Inches.
5. General appearance spec should be based
on final visual inspection spec.
1.12
1.27
1.42
0.044
0.050
0.056
S
1.19
0.047
θ
28-pin Standard Type One TSOP
Note: Controlling dimension: Millimeters
A
2
1
L
L1
Y
c
E
H
D
b
e
Min.
Dimension in Inches
Nom.
Max.
Min.
Nom.
Max.
Symbol
1.20
0.05
0.15
1.05
1.00
0.95
0.17
0.10
11.70
7.90
13.20
0.50
0.00
0
0.20
0.27
0.15
0.21
11.80
11.90
8.00
8.10
13.40
13.60
0.55
0.60
0.70
0.25
0.10
3
5
0.047
0.006
0.041
0.040
0.035
0.007
0.008
0.011
0.004
0.006
0.008
0.461
0.465
0.469
0.311
0.315
0.319
0.520
0.528
0.536
0.022
0.020
0.024
0.028
0.010
0.000
0.004
0
3
5
0.002
A
b
c
D
E
e
L
Y
1
2
A
H D
θ
Dimension in mm
θ
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