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74LCXH16244 Datasheet, PDF (2/9 Pages) Fairchild Semiconductor – Low Voltage 16-Bit Buffer/Line Driver with Bushold | |||
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Truth Tables
Inputs
OE1
L
L
H
I0âI3
L
H
X
Outputs
O0âO3
L
H
Z
Inputs
OE3
L
L
H
I8âI11
L
H
X
Outputs
O8âO11
L
H
Z
Inputs
Outputs
OE2
L
L
H
H = HIGH Voltage Level
L = LOW Voltage Level
I4âI7
L
H
X
O4âO7
L
H
Z
Functional Description
The LCXH16244 contains sixteen non-inverting buffers
with 3-STATE standard outputs. The device is nibble
(4 bits) controlled with each nibble functioning identically,
but independent of the other. The control pins can be
shorted together to obtain full 16-bit operation. The
Logic Diagram
Inputs
OE4
L
L
H
X = Immaterial
Z = High Impedance
I12âI15
L
H
X
Outputs
O12âO15
L
H
Z
3-STATE outputs are controlled by an Output Enable (OEn)
input for each nibble. When OEn is LOW, the outputs are in
2-state mode. When OEn 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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