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零件编号
产品描述 (功能)
M74HCT257M1R(1993) 查看數據表(PDF) - STMicroelectronics
零件编号
产品描述 (功能)
比赛名单
M74HCT257M1R
(Rev.:1993)
HCT257 QUAD 2 CHANNEL MULTIPLEXER (3-STATE) HCT258 QUAD 2 CHANNEL MULTIPLEXER (3-STATE, INVERTING)
STMicroelectronics
M74HCT257M1R Datasheet PDF : 12 Pages
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12
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
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