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74ACTQ16244 Datasheet(PDF) 2 Page - Fairchild Semiconductor

Part No. 74ACTQ16244
Description  16-Bit Buffer/Line Driver with 3-STATE Outputs
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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74ACTQ16244 Datasheet(HTML) 2 Page - Fairchild Semiconductor

   
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Connection Diagram
Logic Diagram
Functional Description
The ACTQ16244 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 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.
Truth Tables
H
HIGH Voltage Level
L
LOW Voltage Level
X
Immaterial
Z
High Impedance
Inputs
Outputs
OE1
I0–I3
O0–O3
LL
L
LH
H
HX
Z
Inputs
Outputs
OE2
I4–I7
O4–O7
LL
L
LH
H
HX
Z
Inputs
Outputs
OE3
I8–I11
O8–O11
LL
L
LH
H
HX
Z
Inputs
Outputs
OE4
I12–I15
O12–O15
LL
L
LH
H
HX
Z


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