74ACTQ16244MTD データシートの表示（PDF） - Fairchild Semiconductor
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74ACTQ16244MTD Datasheet PDF : 7 Pages
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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
Inputs
OE1
I0–I3
L
L
L
H
H
X
Outputs
O0–O3
L
H
Z
Inputs
OE2
I4–I7
L
L
L
H
H
X
Outputs
O4–O7
L
H
Z
Inputs
OE3
L
L
H
I8–I11
L
H
X
Outputs
O8–O11
L
H
Z
Inputs
OE4
L
L
H
H HIGH Voltage Level
L LOW Voltage Level
X Immaterial
Z High Impedance
I12–I15
L
H
X
Outputs
O12–O15
L
H
Z
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