fxla108 Fairchild Semiconductor, fxla108 Datasheet - Page 5

• Manufacturer Part Number: fxla108
• Description: Fxla108- Low-voltage Dual-supply 8-bit Voltage Translator With Configurable Voltage Supplies And Signal Levels, 3-state Outputs, And Auto Direction Sensing
• Manufacturer: Fairchild Semiconductor

© 2009 Fairchild Semiconductor Corporation
FLXA108 • Rev. 1.0.0
Power-Up/Power-Down Sequence
FXL translators offer an advantage in that either V
may be powered up first. This benefit derives from the
chip design. When either V
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 or power-down. The size of the
pull-up resistor is based upon the current-sinking
capability of the device driving the /OE pin.
CCA
should be used to ensure that bus
CCA
CC
supply. A pull-up resistor
is at 0V, outputs are in a
CC
5
The recommended power-up sequence is:
1.
2.
3.
The recommended power-down sequence is:
1.
2.
3.
Apply power to the first V
Apply power to the second V
Drive the /OE input LOW to enable the device.
Drive /OE input HIGH to disable the device.
Remove power from either V
Remove power from other V
CC
.
CC.
CC
CC
.
.
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