ETA4554QHM與TI TXB0304RUTR完全p2p =LSF0204RUTR=TXB0104QRUTR

Level-Shift,ETA, ETA4554QHM,4-bit,QFN12

4-Bit Bidirectional Voltage-Level Translator for Open-Drain & Push-Pull Applications

ETA4554, four-bit non-inverting translator, is a bidirectional voltagelevel translator and can be used to establish digital switching compatibility between mixed-voltage systems. It uses four 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. ETA4554 provide enable control pin, OE. 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 drive