M54HC257 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
M54HC257
STMicroelectronics
M54HC257 Datasheet PDF : 12 Pages
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DIM.
A
B
D
d1
d2
E
e
e3
F
G
M
M1
M54/M74HC257/258
MIN.
9.78
8.89
4.2
7.37
PLCC20 MECHANICAL DATA
mm
TYP.
2.54
0.56
1.27
5.08
0.38
1.27
1.14
MAX.
10.03
9.04
4.57
MIN.
0.385
0.350
0.165
8.38
0.290
0.101
inch
TYP.
0.100
0.022
0.050
0.200
0.015
0.050
0.045
MAX.
0.395
0.356
0.180
0.330
0.004
P027A
11/12
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