SN74LVC1T45DBVRG4

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SN74LVC1T45DBVRG4 is a logic translator, level shifter which is available in the Ultra-small 0.80 mm x0.90 mm Thin-Small-Outline (TSO) Package. It translates 77 mV to 2000 mV input signals to digital inputsand output signals from low voltage devices to 3.3 V CMOS in Automotive (AEC-Q100) Grade 0applications.

This input translator contains one bidirectional translating buffer in which the upper VCCIO is 3.3 Vwhen VCCA is 3.3 V. VCCA can be 2.5 V for automotive applications. The bidirectional pins can beconfigured as either an input or output, offering increased design flexibility.

The bidirectional translators typically feature a reduced-power mode during device operation whenthe output levels are at a known logic state. Internal pulls on the inputs eliminate the need for externalpull-up resistors, reducing power consumption.The device is designed to optimize power, speed and size for applications such as Automotive,Robotics, Industrial and Mobile products.

Application Field

SN74LVC1T45DBVRG4 logic translator, level shifter is used to convert logic signals from one voltage domain toanother, thus making it possible to use one device in several different systems. The most commonapplications of level shifting include:

• Communication and computer interfaces
• Automotive systems
• Industrial systems
• Computer peripherals
• Game consoles
• Power supply systems

The SN74LVC1T45DBVRG4 logic translator, level shifter also has a wide range of applications in variousautomotive applications such as automotive ECUs, airbag systems, carbon monoxide detectors andfuel injection systems. Other applications include portable electronics, medical systems andConsumer Electronics.

Working Principle

The SN74LVC1T45DBVRG4 logic translator, level shifter converts the voltage levels at the input pins tomatch the levels at the output pins. The translator is a bi-directional device providing bidirectionalvoltage level translation between two voltage domains. when high voltage is applied to the input andlow voltage is applied to the output, the translator will drive the output low based on the input.When the output is driven high and the input is driven low, the translator will drive the output lowbased on the input.

The logic level of the output voltage is the same as that of the input voltage. This provides a stablevoltage level while translating input and output, which gives designers the ability to design systemsthat can function over a wide range of voltages.

The SN74LVC1T45DBVRG4 logic translator, level shifter has an auto-switch mode that allows for automaticlevel shifting when the input and output levels are different. This helps reduce design time andcomplexity as the translator will automatically switch between different voltage levels and maintainconsistent logic levels across the translator.

The SN74LVC1T45DBVRG4 logic translator, level shifter is also capable of hot-swapping, which allows forthe replacement of devices without powering down the system. Hot-swap capability preventscorruption of data or performance degradation when removing and replacing devices.

Conclusion

The SN74LVC1T45DBVRG4 logic translator, level shifter is an invaluable integrated circuit for applicationsrequiring logic level translation. With its wide range of applications, small size and power efficiency,the SN74LVC1T45DBVRG4 provides designers with an efficient, cost-effective solution for signal leveltransformation and hot-swapping.

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