This two-bit non-inverting translator is a bidirectional
voltage-level translator and can be used to establish
digital switching compatibility between mixed-voltage
systems. It uses two separate configurable power-supply
rails, with the A ports supporting operating voltages from
1.65V to 5.5V while it tracks the VCCA supply, and the B
ports supporting operating voltages from 2.3V to 5.5V
while it tracks the VCCB supply. This allows the support of
both lower and higher logic signal levels while providing
bidirectional translation capabilities between any of the
1.8V, 2.5V, 3.3V, and 5V voltage nodes.
When the output-enable (OE) input is low, all I/Os are
placed in the high-impedance state, which significantly
reduces the power-supply quiescent current consumption.
OE has an internal pull-down current source, as long as
VCCA is powered.
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. SGM4553YN8G/TR SGM4553YXDO8G/TR
资料下载
