This 2-bit non-inverting translator uses two separate
configurable power-supply rails. The A ports are
designed to track VCCA. VCCA accepts any supply voltage
from 1.2V to 5.0V. The B ports are designed to track VCCB.
VCCB accepts any supply voltage from 1.65 V to 5.5V.
This allows for universal low-voltage bidirectional
translation between any of the 1.2V, 1.5V, 1.8V, 2.5V,
3.3V and 5V voltage nodes. VCCA should not exceed
VCCB.
When the output-enable (OE) input is low, all outputs are
placed in the high-impedance state. OE has an internal
pull-down current source, as long as VCCB is powered.
This device is fully specified for partial-power-down
applications using IOFF. The IOFF circuitry disables the
outputs, preventing damaging current backflow through
the device when it is powered down.
To ensure the high-impedance state during power up or
power down, OE should be tied to GND through a
pull-down resistor; the minimum value of the resistor is
determined by the current-sourcing capability of the
driver. SGM4556YN8G/TR SGM4556YXDO8G/TR
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