DM74ALS174(2000) 查看數據表（PDF） - Fairchild Semiconductor

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DM74ALS174
(Rev.:2000)

Hex/Quad D-Type Flip-Flops with Clear

Fairchild Semiconductor 

Function Table

Inputs

Clear

Clock

D

L

X

X

H

↑

H

H

↑

L

H

L

X

H = HIGH Level (steady state)

L = LOW Level (steady state)

X = Don’t Care

↑ = Transition from LOW-to-HIGH Level

Q0 = the level of Q before the indicated steady-state input conditions were established

Note 1: applies to DM74ALS175 only

Logic Diagrams

DM74ALS174

Outputs

Q

Q (Note 1)

L

H

H

L

L

H

Q0

Q0

DM74ALS175

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