W24257
PACKAGE DIMENSIONS
28-pin SO Wide Body
Symbol
Dimension in Inches
Dimension in mm
Min. Nom. Max.
0.112
0.004
0.093
0.014
0.008
0.098
0.016
0.010
0.713
0.326
0.044
0.453
0.028
0.059
0.331
0.050
0.465
0.036
0.067
0.103
0.020
0.014
0.733
0.336
0.056
0.477
0.044
0.075
0.047
0.004
0
10
Min. Nom. Max.
2.85
0.10
2.36
0.36
0.20
2.49
0.41
0.25
18.11
8.28
1.12
11.51
0.71
1.50
8.41
1.27
11.81
0.91
1.70
2.62
0.51
0.36
18.62
8.53
1.42
12.12
1.12
1.91
1.19
0.10
0
10
28
15
e
1
E
H
E
L
Detail F
1
b
14
A
A
1
A
2
b
c
D
E
e
H
E
L
L
E
S
y
θ
Notes:
D
e
1
c
A
2
A
S
e
y
A
1
L
E
See Detail F
Seating Plane
1. Dimension D Max. & S include mold flash
or tie bar burrs.
2. Dimension b does not include dambar
protrusion/intrusion.
3. Dimension D & E include mold mismatch
.
and determined at the mold parting line.
4. Controlling dimension: Inches.
5. General appearance spec should be based
on final visual inspection spec.
28-pin Standard Type One TSOP
H
D
Symbol
Dimension In Inches
Min.
Nom.
Max.
0.047
0.002
0.035
0.007
0.004
0.461
0.311
0.520
0.040
0.008
0.006
0.465
0.315
0.528
0.022
0.020
0.024
0.010
0.000
0
3
0.004
5
0.028
0.006
0.041
0.011
0.008
0.469
0.319
0.536
Dimension In mm
Min.
Nom.
Max.
1.20
0.05
0.95
0.17
0.10
11.70
7.90
13.20
1.00
0.20
0.15
11.80
8.00
13.40
0.55
0.50
0.60
0.25
0.00
0
3
0.10
5
0.70
0.15
1.05
0.27
0.21
11.90
8.10
13.60
D
c
1
e
E
b
A
2
A
θ
A
A
1
A
2
b
c
D
E
H
D
e
L
L
1
Y
θ
L
L
1
A
1
Controlling dimension: Millimeters
Y
-9-
Publication Release Date: January 2001
Revision A16
WINBOND [ WINBOND ]
