W24L257A WINBOND [Winbond], W24L257A Datasheet - Page 8
W24L257A
Manufacturer Part Number
W24L257A
Description
32K X 8 High Speed CMOS Static RAM
Manufacturer
WINBOND [Winbond]
Datasheet
1.W24L257A.pdf
(9 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
W24L257AJ-12
Manufacturer:
SAMSUNG
Quantity:
1 560
Part Number:
W24L257AJ-12
Manufacturer:
WINBOND/华邦
Quantity:
20 000
Company:
Part Number:
W24L257AJ-15
Manufacturer:
Winbond
Quantity:
1 039
Company:
Part Number:
W24L257AJ-15
Manufacturer:
SAMSUNG
Quantity:
73
Part Number:
W24L257AJ-15
Manufacturer:
WINBOND/华邦
Quantity:
20 000
Company:
Part Number:
W24L257AK-15
Manufacturer:
NS
Quantity:
167
Part Number:
W24L257AQ-15
Manufacturer:
WINBOND/华邦
Quantity:
20 000
PACKAGE DIMENSIONS
28-pin P-DIP Skinny
28-pin Small Outline J Band
E
1
A
L
A
2
28
1
S
28
1
s
Seating Plane
b
b
1
B
B
1
D
D
e
e
1
14
15
A
A
E
2
1
15
14
y
H
A
A
E
1
Base Plane
Mounting Plane
L
£c
a
- 8 -
e
e
E
A
1
c
c
Notes:
Notes:
Symbol
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
3. Dimensions D & E1 include mold mismatch and
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
Symbol
A
A
A
b
b
c
D
E
e
e
H
L
S
y
protrusion/intrusion.
and are determined at the mold parting line.
on final visual inspection spec.
or tie bar burrs.
are determined at the mold parting line.
tie bar burrs.
protrusion/intrusion.
final visual inspection spec.
A
A
A
B
B
c
D
E
E
e
L
e
a
1
2
1
1
E
S
1
1
2
1
1
A
0.027
0.095
0.026
0.016
0.008
0.295
0.044
0.245
0.327
0.077
Dimension in Inches
Min. Nom. Max.
0
0.010
0.125
0.016
0.058
0.008
0.300
0.283
0.090
0.120
0.330
Dimension in Inches
Min. Nom.
0°
0.100
0.028
0.018
0.010
0.710
0.300
0.050
0.265
0.337
0.087
0.130
0.018
0.060
0.010
1.388
0.288
0.100
0.130
0.350
0.310
0.105
0.032
0.022
0.285
0.347
0.097
0.045
0.140
0.014
0.730
0.305
0.056
0.004
10
W24L257A
0.135
0.022
0.293
0.110
0.140
0.175
0.064
0.014
1.400
0.320
0.370
0.055
Max.
15°
7.49
1.12
6.22
8.31
1.96
Min.
0.69
2.41
0.66
0.41
0.20
0
Dimension in mm
0.25
3.18
0.41
1.47
0.20
Min.
7.19
2.29
3.05
8.38
7.62
Dimension in mm
0°
Nom.
18.03
7.62
1.27
6.73
8.56
2.21
2.54
0.71
0.46
0.25
35.26
Nom.
3.30
0.46
1.52
0.25
7.32
2.54
3.30
8.89
7.87
18.54
3.56
Max.
1.14
0.10
2.67
0.81
0.56
7.75
1.42
7.24
8.81
2.46
0.36
10
4.45
35.56
Max.
3.43
0.56
1.63
0.36
8.13
7.44
2.79
3.56
9.40
1.40
15°