HD74AC123AFPEL Просмотр технического описания (PDF) - Renesas Electronics

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HD74AC123AFPEL

Dual Retriggerable Resettable Multivibrator

Renesas Electronics 

HD74AC123A

Logic Symbol

9(1) A

10(2) B

76

(15) (14)

RXCX

CX

Q

5(13)

Q

CD

12(4)

11

(3)

VCC = Pin16

GND = Pin8

Pin Names

A1, A 2

B1, B2

CD1, CD2

Q1, Q2

Q1, Q 2

Trigger Inputs (Active Falling Edge)

Trigger Inputs (Active Rising Edge)

Direct Clear Inputs (Active Low)

Positive Pulse Outputs

Negative Pulse Outputs

Triggering Truth Table

Inputs

A

B

X

X

L

H

H

L

L

H

H : High Voltage Level

L : Low Voltage Level

X : Immaterial

: Low-to-High Transition

: High-to-Low Transition

CD

L

X

H

X

H

Response

No trigger

No trigger

Trigger

No trigger

Trigger

Trigger

Rev.2.00, Jul.16.2004, page 2 of 6

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