W27E020-12 Winbond, W27E020-12 Datasheet - Page 13

• Manufacturer Part Number: W27E020-12
• Description: 256K X 8 ELECTRICALLY ERASABLE EPROM
• Manufacturer: Winbond

PACKAGE DIMENSIONS
32-pin P-DIP
32-Lead PLCC
L
13
Seating Plane
5
E
1
A
L
A
2
14
4
32
1
S
e
G
H
1
E
E
E
b
b
32
1
B
B
1
D
30
20
e
1
21
29
A
2
1
A
D
y
H
D
A
16
17
1
A
Seating Plane
Base Plane
c
a
- 13 -
G
D
e
E
A
Publication Release Date: December 1997
Preliminary W27E020
Notes:
Symbol
c
1. Dimensions D & E do not include interlead flash.
2. Dimension b does not include dambar protrusion/intrusion.
3. Controlling dimension: Inches.
4. General appearance spec. should be based on final
G
G
A
A
A
D
E
b
b
c
e
H
H
L
y
visual inspection sepc.
1
2
1
D
E
D
E
0.390
0.585
0.485
0.075
Dimension in Inches
0.020
0.105
0.026
0.016
0.008
0.547
0.447
0.044
0.490
Notes:
Min. Nom. Max.
Symbol
1. Dimensions D Max. & S include mold flash or
2. Dimension E1 does not include interlead flash.
3. Dimensions D & E1 include mold mismatch and
4. Dimension B1 does not include dambar
5. Controlling dimension: Inches.
6. General appearance spec. should be based on
0 °
A
A
A
B
B
c
D
E
E
e
L
e
S
a
tie bar burrs.
are determined at the mold parting line.
protrusion/intrusion.
final visual inspection spec.
1
2
1
1
A
1
0.110
0.028
0.018
0.010
0.550
0.450
0.050
0.510
0.410
0.590
0.490
0.090
0.010
0.150
0.016
0.048
0.008
Dimension in Inches
0.590
0.540
0.090
0.120
0.630
Min. Nom. Max.
0
0.553
0.453
0.056
0.530
0.430
0.595
0.495
0.095
0.004
0.140
0.115
0.032
0.022
0.014
0.050
0.010
1.650
0.600
0.155
0.018
0.550
0.100
0.130
0.650
10 °
13.89
11.35
12.45
14.86
12.32
0.210
0.160
0.022
0.054
0.014
1.660
0.610
0.555
0.110
0.140
0.670
0.085
2.67
0.66
0.41
0.20
1.12
1.91
Min.
0.50
9.91
15
Dimension in mm
0 °
14.99
13.84
16.00
0.25
3.81
0.41
1.22
0.20
2.29
3.05
Nom.
Min.
10.41
14.99
12.45
13.97
11.43
12.95
Dimension in mm
2.80
0.71
0.46
0.25
1.27
2.29
0
15.24
41.91
13.97
16.51
Nom.
3.94
0.46
1.27
0.25
2.54
3.30
Max.
14.05
11.51
13.46
10.92
15.11
12.57
2.93
0.81
0.56
0.35
1.42
3.56
2.41
0.10
10 °
42.16
15.49
14.10
17.02
5.33
Max.
4.06
0.56
1.37
0.36
Revision A1
2.79
3.56
2.16
15