74HC243NB 데이터 시트보기 (PDF) - Philips Electronics

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74HC243NB

Quad bus transceiver; 3-state

Philips Electronics 

Philips Semiconductors

Quad bus transceiver; 3-state

Product specification

74HC/HCT243

PIN DESCRIPTION

PIN NO.

1

2, 12

3, 4, 5, 6

7

11, 10, 9, 8

13

14

SYMBOL

OEA

n.c.

A0 to A3

GND

B0 to B3

OEB

VCC

NAME AND FUNCTION

output enable input (active LOW)

not corrected

data inputs/outputs

ground (0 V)

data inputs/outputs

output enable input

positive supply voltage

Fig.1 Pin configuration.

Fig.2 Logic symbol.

Fig.3 IEC logic symbol.

December 1990

3

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