74VHC374 데이터 시트보기 (PDF) - STMicroelectronics

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74VHC374

OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUT NON INVERTING

STMicroelectronics 

74VHC374

INPUT EQUIVALENT CIRCUIT

TRUTH TABLE

OE

H

L

L

L

X:Don’t care

Z: High impedance

LOGIC DIAGRAM

INPUTS

CK

X

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 Y M B OL

OE

Q0 to Q7

NAME AND FUNCTION

3 State Output Enable

Input (Active LOW)

3 State Outputs

D0 to D7 Data Inputs

CLOCK

GND

VCC

Clock Input (LOW to

HIGH, edge triggered)

Ground (0V)

Positive Supply Voltage

OUT PUTS

D

Q

X

Z

X

NO CHANGE

L

L

H

H

2/10

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