74VHC273M 데이터 시트보기 (PDF) - STMicroelectronics

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74VHC273M

OCTAL D-TYPE FLIP FLOP WITH CLEAR

STMicroelectronics 

74VHC273

INPUT EQUIVALENT CIRCUIT

TRUTH TABLE

CLEAR

L

H

H

H

X:Don’t Care

INPUTS

D

X

L

H

X

LOGIC DIAGRAMS

PIN DESCRIPTION

PIN No

1

2, 5, 6, 9,

12, 15, 16,

19

3, 4, 7, 8,

13, 14, 17,

18

11

10

20

S YM BO L

CLEAR

Q0 to Q7

NAME AND FUNCTION

Asyncronous Master

Reset (Active LOW)

Flip-Flop Outputs

D0 to D7 Data Inputs

CLOCK

GND

VCC

Clock Input

(LOW-to-HIGH, Edge-

Triggered)

Ground (0V)

Positive Supply Voltage

CLOCK

X

OUTPUTS

Q

L

L

H

Qn

FUNCTION

CLEAR

NO CHANGE

Thislogic diagram has notbe used to esimate propagation delays

2/10

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