CD74HC540 Datasheet, PDF (2/8 Pages) Texas Instruments – High Speed CMOS Logic Octal Buffer and Line Drivers, Three-State

CD74HC540, CD74HCT540, CD74HC541, CD74HCT541
Functional Diagram
OE_A
OE_B
540 541
D₀
Y₀ Y₀
D₁
Y₁ Y₁
D₂
Y₂ Y₂
D₃
Y₃ Y₃
D₄
Y₄ Y₄
D₅
Y₅ Y₅
D₆
Y₆ Y₆
D₇
Y₇ Y₇
INPUTS
OE1
OE2
L
L
H
X
X
H
L
L
NOTE:
H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
Z = High Impedance
TRUTH TABLE
An
H
X
X
L
OUTPUTS
540
541
L
H
Z
Z
Z
Z
H
L
2