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零件编号
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M54HCT257 查看數據表(PDF) - STMicroelectronics
零件编号
产品描述 (功能)
生产厂家
M54HCT257
HCT257 QUAD 2 CHANNEL MULTIPLEXER (3-STATE) HCT258 QUAD 2 CHANNEL MULTIPLEXER (3-STATE, INVERTING)
STMicroelectronics
M54HCT257 Datasheet PDF : 12 Pages
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DIM.
A
B
D
d1
d2
E
e
e3
F
G
M
M1
M54/M74HCT257/258
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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