電平轉(zhuǎn)換器-自動(dòng)雙向
GT0101
This one-bit non-inverting translator which is a bidirectional voltage-level translator and can be used to build digital switching compatibility between multi voltage systems. This IC uses two separate configurable power supply tracks that including A port supporting operating voltages from 1.65 V to 3.6 V with tracking VCCA supply, and also including B port 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.
特性
- No direction-control
- Data rates 24 Mbps (Push Pull) 2 Mbps (Open Drain)
- 1.65 V to 3.6 V on A port and 2.3 V to 5.5 V on B port (VCCA ≤ VCCB)
- VCC isolation feature: if either VCC input is at GND, both ports are in the high-impedance state
- No power-supply sequencing required: either VCCA or VCCB can be ramped first
- Ioff supports partial-power-down mode operation
- Operating temperature range:-40℃ to +85℃
應(yīng)用
- I2C/SMBus
- UART
- GPIO
