M54HC273F1R(1992) Просмотр технического описания (PDF) - STMicroelectronics

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Компоненты Описание

производитель

M54HC273F1R
(Rev.:1992)

OCTAL D TYPE FLIP FLOP WITH CLEAR

STMicroelectronics 

M54/M74HC273

PIN DESCRIPTION

PIN No

1

2, 5, 6, 9,

12, 15, 16,

19

3, 4, 7, 8,

13, 14, 17,

18

11

10

20

SYMBOL

CLEAR

Q0 to Q7

D0 to D7

CLOCK

GND

VCC

NAME AND FUNCTION

Master Reset Input

(Active LOW)

Flip Flop Outputs

Data Inputs

Clock Input (LOW to

HIGH, Edge Triggered)

Ground (0V)

Positive Supply Voltage

IEC LOGIC SYMBOL

TRUTH TABLE

CLEAR

L

H

H

H

X: Don’t Care

LOGIC DIAGRAM

INPUTS

CLOCK

X

OUTPUS

D

Q

X

L

L

L

H

H

X

Qn

FUNCTION

CLEAR

NO CHANGE

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