74ACT273T Просмотр технического описания (PDF) - STMicroelectronics

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производитель

74ACT273T

OCTAL D-TYPE FLIP FLOP WITH CLEAR

STMicroelectronics 

74ACT273

INPUT AND OUTPUT EQUIVALENT CIRCUIT

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

D0 to D7

CLOCK

GND

VCC

NAME AND FUNCTION

Asyncronous Master

Reset (Active LOW)

Flip-Flop Outpus

Data Inputs

Clock Input

(LOW-to-HIGH, Edge-

Triggered)

Ground (0V)

Positive Supply Voltage

TRUTH TABLE

CLEAR

L

H

H

H

X:Don’t Care

INPUTS

D

X

L

H

X

LOGIC DIAGRAMS

CLOCK

X

OUTPUTS

Q

L

L

H

Qn

FUNCTION

CLEAR

NO CHANGE

Thislogic diagram has notbe used to esimate propagation delays

2/11

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