The FXM2IC102 is a configurable dual-voltage-supply translator designed for
bi-directional voltage translation over a wide range of input and output voltage
levels..
The FXM2IC102 is intended for use as a voltage translator in applications
using the I2C bus interface. Input and output voltage levels are
compatible with I2C device specification voltage levels.
The device is designed so that the A port tracks the VCCA level
and the B port tracks the VCCB level. This allows for bi-directional
voltage translation over voltage ranges: 1.8V, 2.5V, 3.3V, and 5.0V.
The device remains in 3-state until both VCCs reach active levels,
allowing either VCC to be powered up first. Internal power-down
control circuits place the device in 3-state if either VCC 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.
Schmitt triggers are used on data inputs for signal noise suppression.
Typically the inputs have 100 millivolts of hysteresis over the full
VCC range.
The FXM2IC102 typically consumes only 230nA during “no I2Cdata
transactions” when VCCA = 1.8V and VCCB = 3.3V.
FXM2IC102 exhibits robust I2C repeater performance due to strong
current sinking capability in > 400pf bus segments.
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