w27c020 Winbond Electronics Corp America, w27c020 Datasheet - Page 13

• Manufacturer Part Number: w27c020
• Description: 256k X 8 Electrically Erasable Eprom
• Manufacturer: Winbond Electronics Corp America

PACKAGE DIMENSIONS
32-pin P-DIP
32-Lead PLCC
L
E
13
1
Seating Plane
A
5
L
A
2
32
1
S
14
4
e
G
H
1
E
E
E
B
B
b
b
32
1
1
D
20
30
e
1
21
29
A
A
2
1
D H
y
D
A
17
16
A
1
Seating Plane
Base Plane
a
c
- 13 -
G
D
e
E
A
Notes:
Publication Release Date: September 1998
c
Preliminary W27C020
Symbol
4. General appearance spec. should be based on final
1. Dimensions D & E do not include interlead flash.
2. Dimension b1 does not include dambar protrusion/intrusion.
3. Controlling dimension: Inches.
A
A
A
b
b
c
D
H
H
E
G
G
L
y
Notes:
e
visual inspection sepc.
Symbol
1
2
1
D
E
2. Dimension E1 does not include interlead flash.
3. Dimensions D & E1 include mold mismatch and are
4. Dimension B1 does not include dambar protrusion/intrusion.
D
E
1. Dimensions D Max. & S include mold flash or tie bar burrs.
5. Controlling dimension: Inches.
6. General appearance spec. should be based on final visual
A
A
A
B
B
D
E
E
e
S
c
L
e
a
determined at the mold parting line.
1
1
1
inspection spec.
2
1
A
Dimension in Inches
0.020
0.105
0.026
0.016
0.008
0.547
0.447
0.044
0.490
0.390
0.585
0.485
0.075
Min.
0 °
0.048
Dimension in Inches
0.010
0.150
0.016
0.008
0.590
0.545
0.090
0.120
0.630
Min. Nom. Max.
0
Nom.
0.550
0.450
0.050
0.510
0.410
0.590
0.490
0.090
0.110
0.028
0.018
0.010
0.155
0.018
0.050
0.010
1.650
0.600
0.550
0.100
0.130
0.650
Max.
0.140
0.115
0.032
0.022
0.014
0.553
0.453
0.056
0.530
0.430
0.595
0.495
0.095
0.004
0.160
0.022
0.610
0.110
0.140
0.210
0.054
0.014
1.660
0.555
0.670
0.085
10 °
15
14.99
16.00
13.84
3.81
0.41
1.22
13.89
11.35
12.45
14.86
12.32
0.25
0.20
3.05
Dimension in mm
Min.
2.29
Min.
0.50
2.67
0.66
0.41
0.20
1.12
1.91
9.91
0
0 °
Dimension in mm
Nom.
41.91
15.24
13.97
16.51
3.94
0.46
1.27
0.25
2.54
3.30
Nom.
13.97
11.43
12.95
10.41
14.99
12.45
2.80
0.71
0.46
0.25
1.27
2.29
42.16
15.49
14.10
17.02
5.33
Max.
4.06
0.56
1.37
0.36
2.79
3.56
2.16
15
Max.
14.05
11.51
13.46
10.92
15.11
12.57
1.42
3.56
2.93
0.81
0.56
0.35
2.41
0.10
10 °
Revision A1