MM74HCT240WMX 查看數據表（PDF） - Fairchild Semiconductor

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MM74HCT240WMX

Inverting Octal 3-STATE Buffer • Octal 3-STATE Buffer

Fairchild Semiconductor 

Truth Tables

MM74HCT240

1G

L

L

H

H

H HIGH Level

1A 1Y 2G

L

H

L

H

L

L

L

Z

H

H

Z

H

L LOW Level

2A 2Y

L

H

H

L

L

Z

H

Z

Z High Impedance

Logic Diagrams

MM74HCT240

MM74HCT244

1G 1A 1Y 2G 2A 2Y

L

L

L

L

L

L

L

H

H

L

H

H

H

L

Z

H

L

Z

H

H

Z

H

H

Z

MM74HCT244

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