74vcx16827 Fairchild Semiconductor, 74vcx16827 Datasheet - Page 2

• Manufacturer Part Number: 74vcx16827
• Description: 74vcx16827 Low Voltage 20-bit Buffer/line Driver With 3.6v Tolerant Inputs And Outputs
• Manufacturer: Fairchild Semiconductor

www.fairchildsemi.com
Connection Diagram
2
Truth Tables
H
L
X
Z
Functional Description
The 74VCX16827 contains twenty non-inverting buffers
with 3-STATE outputs. The device is byte controlled with
each byte functioning identically, but independent of each
other. The control pins may be shorted together to obtain
full 16-bit operation. The 3-STATE outputs are controlled by
Output Enable (OE
LOW, O
or OE
impedance mode but this does not interfere with entering
new data into the inputs. The same applies for byte two
with OE
Logic Diagrams
LOW Voltage Level
High Impedance
HIGH Voltage Level
Immaterial (HIGH or LOW, inputs may not float)
OE
OE
H
X
H
X
L
L
L
L
2
1
3
3
0
are HIGH, the standard outputs are in the high
—O
and OE
10
are in the 2-state mode. When either OE
4
OE
OE
Inputs
Inputs
.
H
H
X
X
L
L
L
L
n
2
4
) inputs. When OE
I
I
0
0
H
X
X
H
X
X
–I
L
–I
L
9
9
1
, and OE
Outputs
Outputs
O
O
10
0
H
H
–O
L
Z
Z
–O
L
Z
Z
9
19
2
are
1