74LCX16240 Datasheet, PDF (2/8 Pages) Fairchild Semiconductor – Low Voltage 16-Bit Inverting Buffer/Line Driver with 5V Tolerant Inputs/Outputs

Truth Tables
Inputs
OE₁
I₀–I₃
L
L
L
H
H
X
Outputs
O₀–O₃
H
L
Z
Inputs
OE₃
L
L
H
I₈–I₁₁
L
H
Z
Outputs
O₈–O₁₁
H
L
Z
Inputs
OE₂
L
L
H
H HIGH Voltage Level
L LOW Voltage Level
X Immaterial
Z High Impedance
I₄–I₇
L
H
X
Outputs
O₄–O₇
H
L
Z
OE₄
L
L
H
Inputs
I₁₂–I₁₅
L
H
Z
Outputs
O₁₂–O₁₅
H
L
Z
Functional Description
The LCX16240 contains sixteen inverting buffers with
3-STATE standard outputs. The device is nibble (4 bits)
controlled with each nibble functioning identically, but inde-
pendent of the other. The control pins may be shorted
together to obtain full 16-bit operation. The 3-STATE out-
Logic Diagram
puts are controlled by an Output Enable (OE_n) input for
each nibble. When OE_n is LOW, the outputs are in 2-state
mode. When OE_n is HIGH, the outputs are in the high
impedance mode, but this does not interfere with entering
new data into the inputs.
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