W24256-70L WINBOND [Winbond], W24256-70L Datasheet - Page 8

• Manufacturer Part Number: W24256-70L
• Description: 32K X 8 CMOS STATIC RAM
• Manufacturer: WINBOND [Winbond]

PACKAGE DIMENSIONS
28-pin P-DIP
28-pin SOP Wide Body
E
1
A
L
A
2
28
1
S
S
Seating Plane
28
1
B
B
1
D
e
D
e
1
b
y
15
14
14
15
A
A A
A
E H
2
1
1
E
Base Plane
Seating Plane
a
See Detail F
- 8 -
e
L
1
E
e
Detail F
A
e
1
L
c
E
c
Preliminary W24256
Notes:
Notes:
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
1. Dimensions D Max. & S include mold flash
2. Dimension b does not include dambar
3. Dimensions D & E include mold mismatch
4. Controlling dimension: Inches.
5. General appearance spec should be based
Symbol
A
A
A
B
B
c
D
E
E
e
L
a
e
S
A
A
A
b
c
D
H
L
L
S
y
tie bar burrs.
are determined at the mold parting line.
protrusion/intrusion.
final visual inspection spec.
E
e
or tie bar burrs.
protrusion/intrusion.
and determined at the mold parting line.
on final visual inspection spec.
2
1
A
1
1
1
E
1
2
E
Dimension in Inches
0.010
0.150
0.016
0.058
0.008
0.590
0.540
0.090
0.120
0.630
Dimension in Inches
0.004
0.093
0.014
0.008
0.326
0.044
0.453
0.028
0.059
Min. Nom. Max.
Min. Nom. Max.
0
0
0.155
0.018
0.060
0.010
1.460
0.600
0.545
0.100
0.130
0.650
0.010
0.098
0.016
0.713
0.331
0.050
0.465
0.036
0.067
0.014
.
0.160
0.022
0.064
0.014
1.470
0.610
0.550
0.110
0.140
0.670
.
0.103
0.020
0.733
0.336
0.056
0.477
0.044
0.075
0.047
0.210
0.090
0.112
0.004
15
10
11.51
14.99
13.72
16.00
3.81
0.41
1.47
0.10
2.36
0.36
0.20
8.28
1.12
0.71
0.25
0.20
3.05
Min.
1.50
Min.
2.29
Dimension in mm
0
0
Dimension in mm
18.11
11.81
15.24
Nom.
Nom.
37.08
13.84
16.51
2.49
0.41
0.25
8.41
1.27
0.91
1.70
3.94
0.46
1.52
0.25
2.54
3.30
18.62
12.12
Max.
2.85
0.36
1.42
1.12
1.91
37.34
15.49
13.97
17.02
2.62
0.51
8.53
5.33
1.19
0.10
Max.
4.06
0.56
1.63
0.36
2.79
10
3.56
2.29
15