W24257 데이터 시트보기 (PDF) - Winbond
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W24257 Datasheet PDF : 10 Pages
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W24257
PACKAGE DIMENSIONS
28-pin SO Wide Body
28
15
e1
E HE
L
Detail F
1
14
b
D
A2 A
S
e
y
A1
Seating Plane
e1
c
LE
See Detail F
28-pin Standard Type One TSOP
Symbol
A
A1
A2
b
c
D
E
e
HE
L
LE
S
y
θ
Dimension in Inches
Min. Nom. Max.
0.112
Dimension in mm
Min. Nom. Max.
2.85
0.004
0.10
0.093 0.098 0.103 2.36 2.49 2.62
0.014 0.016 0.020 0.36 0.41 0.51
0.008 0.010 0.014 0.20 0.25 0.36
0.713 0.733
18.11 18.62
0.326 0.331 0.336 8.28 8.41 8.53
0.044 0.050 0.056 1.12 1.27 1.42
0.453
0.028
0.059
0.465
0.036
0.067
0.477
0.044
0.075
0.047
11.51
0.71
1.50
11.81
0.91
1.70
12.12
1.12
1.91
1.19
0.004
0.10
0
10
0
10
Notes:
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 in.clude 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.
HD
D
1
e
b
θ
L
L1
c
E
A2 A
A1
Y
Dimension In Inches Dimension In mm
Symbol
Min. Nom. Max. Min. Nom. Max.
A
A1
A2
b
c
D
E
HD
e
L
L1
Y
θ
0.047
1.20
0.002
0.006
0.035 0.040 0.041
0.007 0.008 0.011
0.004 0.006 0.008
0.461 0.465 0.469
0.311 0.315 0.319
0.05
0.95
0.17
0.10
11.70
7.90
0.15
1.00 1.05
0.20 0.27
0.15 0.21
11.80 11.90
8.00 8.10
0.520
0.020
0.000
0.528
0.022
0.024
0.010
0.536
0.028
0.004
13.20
0.50
0.00
13.40
0.55
0.60
0.25
13.60
0.70
0.10
0
3
5
0
3
5
Controlling dimension: Millimeters
Publication Release Date: January 2001
-9-
Revision A16
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