fxla102 Fairchild Semiconductor, fxla102 Datasheet - Page 2

• Manufacturer Part Number: fxla102
• Description: Low Voltage Dual Supply 2-bit Voltage Translator With Configurable Voltage Supplies And Signal Levels, 3-state Outputs, And Auto Direction Sensing
• Manufacturer: Fairchild Semiconductor

©2008 Fairchild Semiconductor Corporation
FXLA102 Rev. 1.0.0
Connection Diagram
Pin Description
Number
2, 3
6, 7
1
4
5
8
V
CCB
Name
A
B
V
V
GND
0
OE
1
V
CCA
CCB
(Top Thru View)
, A
, B
B
CCA
8
1
7
0
1
0
B
A
6
2
1
0
A Side Power Supply
A Side Inputs or 3-State
Outputs
Output Enable Input
A Side Inputs or 3-State
Outputs
B Side Power Supply
OE
A
5
4
3
1
Description
GND
2
Functional Diagram
Function Table
H = HIGH Logic Level
L = LOW Logic Level
Power-Up/Power-Down Sequencing
FXL translators offer an advantage in that either V
may be powered up first. This benefit derives from the
chip design. When either V
a high-impedance state. The control input (OE) is
designed to track the V
tying OE to V
contention, excessive currents, or oscillations do not
occur during power-up/power-down. The size of the
pull-up resistor is based upon the current-sinking
capability of the device driving the OE pin.
The recommended power-up sequence is the following:
1. Apply power to the first V
2. Apply power to the second V
3. Drive the OE input LOW to enable the device.
The recommended power-down sequence is the
following:
1. Drive OE input HIGH to disable the device.
2. Remove power from either V
3. Remove power from other V
Control
OE
OE
A
A
H
L
0
1
CCA
V
should be used to ensure that bus
CCA
Normal Operation
3-State
CCA
CC
CC
Outputs
supply. A pull-up resistor
is at 0 volts, outputs are in
.
CC
CC
CC
.
V
.
.
CCB
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B
B
0
1
CC