
W921E400A/W921C400
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12. PACKAGE DIMENSIONS
28-pin DIP
Seating Plane
e
A
2
A
a
c
E
Base Plane
1
A
1
e
L
A
S
1
E
D
1
B
B
28
1
15
14
3. Dimension D & E1 include mold mismatch and
are determined at the mold parting line.
4.protrusion/intrusion.
6.final visual inspection spec.
1.63
1.47
0.064
0.058
Notes:
Symbol
Min.
Nom.
Max.
Max.
Nom.
Min.
Dimension in Inches
Dimension in mm
A
A
A
B
B
1
c
D
E
E
1
e
L
a
A
S
1
2
0.060
1.52
0.210
5.33
0.010
0.150
0.016
0.155
0.018
0.160
0.022
3.81
0.41
0.25
3.94
0.46
4.06
0.56
0.008
0.120
0.670
0.090
0.010
0.130
0.014
0.140
0.20
3.05
0.25
3.30
0.36
3.56
0.540
0.090
0.550
0.110
0.545
0.100
13.72
13.97
13.84
17.02
15.24
14.99
15.49
0.600
0.590
0.610
2.29
2.54
2.79
1
e
1.460
1.470
37.08
37.34
0
15
2.29
0.650
0.630
16.00
16.51
5. Controlling dimension: Inch.
15
0
28-pin SOP
2
1
A
28
15
14
1
e
S
E H
b
Seating Plane
A
A
y
L
L
e
c
See Detail F
D
E
E
1
1
e
Detail F
1.or tie bar burrs.
2. protrusion/intrusion.
3. and determined at the mold parting line.
4. Controlling dimension: Inch
5. General appearance spec should be based
on final visual inspection spec.
0.25
0.20
0.010
0.008
Notes:
Symbol
A
A
A
Min.
Nom.
Max.
Max.
Nom.
Min.
Dimension in Inch
Dimension in mm
b
c
D
E
e
H
E
L
L
E
S
y
θ
1
2
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
0.047
1.50
18.11
1.70
18.62
1.91
1.19
0.477
0.044
0.465
0.453
0.028 0.036
12.12
1.12
11.81
0.91
11.51
10
0
0.10
8.53
8.41
1.27
8.28
0.336
0.056
0.331
0.326
0.044 0.050
0.71
1.12
1.42