W24257A-10 WINBOND [Winbond], W24257A-10 Datasheet - Page 10

• Manufacturer Part Number: W24257A-10
• Description: 32K X 8 High Speed CMOS Static RAM
• Manufacturer: WINBOND [Winbond]

Package Dimensions, continued
28-pin SO Wide Body
28-pin Standard Type One TSOP
b
e
S
L
Seating Plane
28
1
L
1
e
D
H
D
b
y
D
15
14
A A
A
E
2
1
H
E
See Detail F
- 10 -
A
A
1
e
A
L
1
E
2
Detail F
e
1
c
Y
L
c
E
Note: Controlling dimension: Millimeters
Symbol
A
D
E
H
L
Y
A
A
b
c
e
L
1
1
2
D
Notes:
1. Dimensions D Max. & S include mold flash
2. Dimension b does not include dambar
3. Dimensions D & E include mold mismatch
4. Controlling dimension: Inches.
5. General appearance spec should be based
Symbol
Dimension in Inches
A
A
A
D
H
L
L
S
y
b
c
E
and are determined at the mold parting line.
on final visual inspection spec.
0.002
0.035
0.007
0.004
0.461
0.311
0.520
0.020
0.000
e
or tie bar burrs.
protrusion/intrusion.
Min.
E
E
1
2
0
Dimension in Inches
0.004
0.093
0.014
0.008
0.326
0.044
0.453
0.028
0.059
Nom. Max.
Min. Nom. Max.
0.040
0.008
0.006
0.465
0.315
0.528
0.022
0.024
0.010
0
3
0.098
0.016
0.010
0.713
0.331
0.050
0.465
0.036
0.067
0.319
0.047
0.006
0.041
0.011
0.008
0.469
0.536
0.028
0.004
5
0.112
0.103
0.020
0.014
0.733
0.336
0.056
0.477
0.044
0.075
0.047
0.004
.
10
11.70
13.20
Min. Nom. Max.
Dimension in mm
0.05
0.95
0.17
0.10
7.90
0.50
0.00
0
11.51
0.10
2.36
0.36
0.20
8.28
1.12
0.71
Min.
1.50
W24257A
0
Dimension in mm
11.80
13.40
1.00
0.15
0.55
0.60
0.25
18.11
0.20
8.00
Nom.
11.81
2.49
0.41
0.25
8.41
1.27
0.91
1.70
3
12.12
11.90
13.60
18.62
2.85
Max.
2.62
0.51
0.36
8.53
1.42
1.12
1.91
1.19
0.10
0.21
1.20
0.15
1.05
0.27
8.10
0.70
0.10
10
5