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HD74HC541 Datasheet

  • HD74HC541

  • Octal Buffers/Line Drivers (with 3-state outputs)

  • 9頁

  • HITACHI

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HD74HC540/HD74HC541
Octal Buffers/Line Drivers (with 3-state outputs)
Description
The HD74HC540 is an inverting buffer and the HD74HC541 is a non-inverting buffer. The 3-state control
gate operates as a two-input NOR such that if either G
1
or G
2
are high, all eight outputs are in the high-
impedance state.
Features
鈥?/div>
High Speed Operation: t
pd
= 11.5 ns typ (C
L
= 50 pF)
鈥?/div>
High Output Current: Fanout of 15 LSTTL Loads
鈥?/div>
Wide Operating Voltage: V
CC
= 2 to 6 V
鈥?/div>
Low Input Current: 1 碌A(chǔ) max
鈥?/div>
Low Quiescent Supply Current: I
CC
(static) = 4 碌A(chǔ) max (Ta = 25擄C)
Function Table
Inputs
G
1
L
L
H
X
X :
Z :
G
2
L
L
X
H
A
L
H
X
X
Output Y
HD74HC540
H
L
Z
Z
HD74HD541
L
H
Z
Z
irrelevant
off (high-impedance) state of a 3-state output.

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