74ACT16540SSCX View Datasheet(PDF) - Fairchild Semiconductor
Part Name
Description
MFG CO.
74ACT16540SSCX Datasheet PDF : 7 Pages
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Functional Description
The ACT16540 contains sixteen inverting buffers with 3-
STATE standard outputs. The device is byte controlled with
each byte functioning identically, but independent of the
other. The control pins may be shorted together to obtain
full 16-bit operation. The 3-STATE outputs are controlled by
an Output Enable (OEn) input for each byte. 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
OE2
L
L
H
X
X
H
L
L
Inputs
OE3
L
OE4
L
H
X
X
H
L
L
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
I0–I7
H
X
X
L
I8–I15
H
X
X
L
Outputs
O0–O7
L
Z
Z
H
Outputs
O8–O15
L
Z
Z
H
Logic Diagram
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