74HCT126NB 查看數據表（PDF） - Philips Electronics

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74HCT126NB

Quad buffer/line driver; 3-state

Philips Electronics 

Philips Semiconductors

Quad buffer/line driver; 3-state

Product specification

74HC/HCT126

PIN DESCRIPTION

PIN NO.

1, 4, 10, 13

2, 5, 9, 12

3, 6, 8, 11

7

14

SYMBOL

1OE to 4OE

1A to 4A

1Y to 4Y

GND

VCC

NAME AND FUNCTION

output enable inputs (active HIGH)

data inputs

data outputs

ground (0 V)

positive supply voltage

Fig.1 Pin configuration.

Fig.4 Functional diagram.

Fig.2 Logic symbol.

(a)

(b)

Fig.3 IEC logic symbol.

Fig.5 Logic diagram (one buffer).

FUNCTION TABLE

INPUTS

OUTPUT

nOE nA

nY

H

L

L

H

H

H

L

X

Z

Note

1. H = HIGH voltage level

L = LOW voltage level

X = don’t care

Z = high impedance OFF-state

December 1990

3

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