74HCT27U Ver la hoja de datos (PDF) - Philips Electronics

Número de pieza

componentes Descripción

Fabricante

74HCT27U

Triple 3-input NOR gate

Philips Electronics 

Philips Semiconductors

Triple 3-input NOR gate

PIN DESCRIPTION

PIN NO.

1, 3, 9

2, 4, 10

13, 5, 11

7

12, 6, 8

14

SYMBOL

1A to 3A

1B to 3B

1C to 3C

GND

1Y to 3Y

VCC

NAME AND FUNCTION

data inputs

data inputs

data inputs

ground (0 V)

data outputs

positive supply voltage

Product specification

74HC/HCT27

Fig.1 Pin configuration.

Fig.4 Functional diagram.

Fig.2 Logic symbol.

Fig.3 IEC logic symbol.

Fig.5 Logic diagram (one gate).

FUNCTION TABLE

INPUTS

OUTPUT

nA nB nC

nY

L

LL

H

X

XH

L

X

HX

L

H

XX

L

Notes

1. H = HIGH voltage level

L = LOW voltage level

X = don’t care

December 1990

3

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