74hct7540 NXP Semiconductors, 74hct7540 Datasheet - Page 4

• Manufacturer Part Number: 74hct7540
• Description: Octal Schmitt Trigger Buffer/line Driver; 3-state; Inverting
• Manufacturer: NXP Semiconductors

Philips Semiconductors
FUNCTION TABLE
Notes
1. H = HIGH voltage level
December 1990
Octal Schmitt trigger buffer/line driver;
3-state; inverting
OE
L = LOW voltage level
X = don’t care
Z = high impedance OFF-state
X
H
L
L
1
INPUTS
OE
H
X
L
L
2
A
H
X
X
L
n
OUTPUTS
Y
H
Z
Z
L
n
Fig.5 Logic diagram.
4
Fig.4 Functional diagram.
74HC/HCT7540
Product specification