FXM2IC102 pdf datasheet (Dual

The FXM2IC102 is a configurable dual-voltage-supply
translator designed for bi-directional voltage translation
over a wide range of input and output voltages levels.
The FXM2IC102 is intended for use as a voltage translator
in applications using the I
2
C bus interface. Input
and output voltage levels are compatible with I
2
C device
specification voltage levels.
The device is designed so that the A port tracks the
V
CCA
level, and the B port tracks the V
CCB
level. This
allows for bi-directional voltage translation over the
voltage ranges: 1.8V, 2.5V, 3.3V, 5.0V.
The device remains in 3-state until both V
CC
s reach
active levels allowing either V
CC
to be powered-up first.
Internal power down control circuits place the device in
3-state if either V
CC
is removed.
The two ports of the device have auto-direction sense
capability. Either port may sense an input signal and
transfer it as an output signal to the other port.