74HC_HCT541

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© NXP Semiconductors N.V. 2014. All rights reserved.

Product data sheet

Rev. 3 — 15 April 2014

5 of 19

NXP Semiconductors

74HC541; 74HTC541

Octal buffer/line driver; 3-state

5.

Pinning information

5.1 Pinning

5.2 Pin description

6.

Functional description

[1]

H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.

Fig 5.

Pin configuration DIP20, SO20 and (T)SSOP20

Table 2.

Pin description

Symbol

Pin

Description

OE1

1

output enable input (active LOW)

A0 to A7

2, 3, 4, 5, 6, 7, 8, 9

data input

GND

10

ground (0 V)

Y0 to Y7

18, 17, 16, 15, 14, 13, 12, 11 data output

OE2

19

output enable input (active LOW)

20

supply voltage

Table 3.

Functional table[1]

Control

Input

Output

OE1

OE2

An

Yn

LL

L

L

LL

H

H

XH

X

Z

HX

X

Z