电平转换器-自动双向

GT0104

This 4-bit non-inverting translator is a bidirectional voltage-level translator and can be used to build digital switching compatibility between multi voltage systems. It uses two separate configurable power supply rails that including A ports supporting operating voltages from 1.65 V to 3.6 V with tracking VCCA supply, and also including B ports supporting operating voltages from 2.3 V to 5.5 V with tracking VCCB supply. The advantage above provides the support of both lower and higher logic signal levels while providing bidirectional translation capabilities between any of the 1.8-V, 2.5-V, 3.3-V, and 5- V voltage circuit points. Placing output-enable (OE) input to low level, all I/Os are forced to high-impedance state that significantly lower the quiescent current consumption. In order to ensure the high-impedance state during power up or power down, OE pin should be tied to GND via a pulldown resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver.