TC74AC257P 查看數據表（PDF） - Toshiba

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比赛名单

TC74AC257P

TC74AC257P/F/FN 2-Channel Multiplexer (3-state)/ TC74AC258P/F/FN 2-Channel Multiplexer (3-state,inverting)

Toshiba 

Pin Assignment

TC74AC257

TC74AC257,258P/F/FN

TC74AC258

IEC Logic Symbol

TC74AC257

TC74AC258

Truth Table

Inputs

OE SELECT A

H

X

X

L

L

L

L

L

H

L

H

X

L

H

X

X: Don’t care

Z: High impedance

Outputs

B Y (257) Y (258)

X

Z

Z

X

L

H

X

H

L

L

L

H

H

H

L

2

2007-10-01

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