M54HC193K1 Ver la hoja de datos (PDF) - STMicroelectronics

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M54HC193K1

RAD-HARD SYNCHRONOUS UP/DOWN BINARY COUNTER

STMicroelectronics 

M54HC193

IEC LOGIC SYMBOLS

INPUT AND OUTPUT EQUIVALENT CIRCUIT

TRUTH TABLE

COUNT UP

H

H

X

X

X : Don’t Care

COUNT DOWN

H

H

X

X

LOAD

H

H

H

H

L

X

PIN DESCRIPTION

PIN N°

3, 2, 6, 7

4

5

11

12

13

14

15, 1, 10, 9

8

16

SYMBOL

QA to QD

CCD

CCU

LOAD

CARRY

BORROW

CLR

A to D

GND

VCC

NAME AND FUNCTION

Flip-Flop Outputs

Count Down Clock Input

Count Up Clock Input

Asynchronous Parallel

Load Input (Active LOW)

Count Up (Carry)

Output (Active LOW)

Count Down (Borrow)

Output (Active LOW)

Asynchronous Reset

Input (Active High)

Data Inputs

Ground (0V)

Positive Supply Voltage

CLEAR

L

L

L

L

L

H

FUNCTION

COUNT UP

NO COUNT

COUNT DOWN

NO COUNT

PRESET

RESET

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