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74LS257 Datasheet(PDF) 6 Page - ON Semiconductor

No. de pieza 74LS257
Descripción Electrónicos  LOW POWER SCHOTTKY
PDF  8 Pages
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Fabricante Electrónico  ONSEMI [ON Semiconductor]
Página de inicio  http://www.onsemi.com
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74LS257 Datasheet(HTML) 6 Page - ON Semiconductor

  74LS257 Datasheet HTML 1Page - ON Semiconductor 74LS257 Datasheet HTML 2Page - ON Semiconductor 74LS257 Datasheet HTML 3Page - ON Semiconductor 74LS257 Datasheet HTML 4Page - ON Semiconductor 74LS257 Datasheet HTML 5Page - ON Semiconductor 74LS257 Datasheet HTML 6Page - ON Semiconductor 74LS257 Datasheet HTML 7Page - ON Semiconductor 74LS257 Datasheet HTML 8Page - ON Semiconductor  
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SN74LS257B SN74LS258B
http://onsemi.com
6
PACKAGE DIMENSIONS
N SUFFIX
PLASTIC PACKAGE
CASE 648–08
ISSUE R
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION L TO CENTER OF LEADS WHEN
FORMED PARALLEL.
4. DIMENSION B DOES NOT INCLUDE MOLD FLASH.
5. ROUNDED CORNERS OPTIONAL.
–A–
B
F
C
S
H
G
D
J
L
M
16 PL
SEATING
18
9
16
K
PLANE
–T–
M
A
M
0.25 (0.010)
T
DIM
MIN
MAX
MIN
MAX
MILLIMETERS
INCHES
A
0.740
0.770
18.80
19.55
B
0.250
0.270
6.35
6.85
C
0.145
0.175
3.69
4.44
D
0.015
0.021
0.39
0.53
F
0.040
0.70
1.02
1.77
G
0.100 BSC
2.54 BSC
H
0.050 BSC
1.27 BSC
J
0.008
0.015
0.21
0.38
K
0.110
0.130
2.80
3.30
L
0.295
0.305
7.50
7.74
M
0
10
0
10
S
0.020
0.040
0.51
1.01
_
_
_
_



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