W29C020-12 WINBOND [Winbond], W29C020-12 Datasheet - Page 19

• Manufacturer Part Number: W29C020-12
• Description: 256K X 8 CMOS FLASH MEMORY
• Manufacturer: WINBOND [Winbond]

PACKAGE DIMENSIONS
32-pin P-DIP
32-pin SO Wide Body
E
1
A
L
A
2
32
1
32
1
Seating Plane
S
S
D
B
B
1
y
D
e
1
e
b
17
16
A
2
E H
A
1
A
E
17
16
A
1
Seating Plane
Base Plane
See Detail F
- 19 -
e
a
1
Detail F
L
e
E
e
A
1
L
E
c
Publication Release Date: February 1998
c
Notes:
Notes:
Symbol
3. Dimensions D & E include mold mismatch
4. Controlling dimension: Inches.
5. General appearance spec should be based
Symbol
1. Dimensions D Max. & S include mold flash
2. Dimension b does not include dambar
1.Dimensions D Max. & S include mold flash or
2.Dimension E1 does not include interlead flash.
4.Dimension B1 does not include dambar
5.Controlling dimension: Inches.
6.General appearance spec. should be based on
3.Dimensions D & E1 include mold mismatch and
A
A
A
B
B
D
e
S
c
E
E
e
L
a
H
A
A
A
c
D
E
S
b
e
L
L
y
tie bar burrs.
are determined at the mold parting line.
protrusion/intrusion.
final visual inspection spec.
or tie bar burrs.
protrusion/intrusion.
and determined at the mold parting line.
on final visual inspection spec.
A
2
1
1
1
1
E
E
1
2
0.048
0.010
0.150
0.016
0.008
0.590
0.545
0.090
0.120
0.630
Dimension in inches
Min. Nom. Max.
0.004
0.101
0.014
0.006
0.440
0.044
0.546
0.023
0.047
Dimension in Inches
Min.
0
0
0.155
0.018
0.050
0.010
1.650
0.600
0.550
0.100
0.130
0.650
Nom.
0.106
0.016
0.008
0.805
0.445
0.050
0.556
0.031
0.055
0.160
0.022
0.610
0.110
0.140
.
0.210
0.054
0.014
1.660
0.555
0.670
0.085
.
15
0.111
0.020
0.012
0.817
0.450
0.056
0.556
0.039
0.063
0.036
0.118
0.004
Max.
10
14.99
13.84
16.00
0.25
3.81
0.41
1.22
0.20
3.05
Min.
2.29
Dimension in mm
0
11.18
13.87
0.10
2.57
0.36
0.15
1.12
0.58
Min.
1.19
W29C020
Dimension in mm
0
15.24
Nom.
41.91
13.97
16.51
3.94
0.46
1.27
0.25
2.54
3.30
20.45
11.30
Nom.
14.12
2.69
0.41
0.20
1.27
0.79
1.40
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
Revision A3
11.43
20.75
14.38
Max.
3.00
0.31
1.42
0.99
1.60
2.82
0.51
0.91
0.10
10