To begin the design process, determine the following:
- Input voltage range
- Use the supply voltage of the device that is driving the SN74LXC8T245 device to determine the input voltage range. For a valid logic-high, the value must exceed the positive-going input-threshold voltage (Vt+) of the input port. For a valid logic low the value must be less than the negative-going input-threshold voltage (Vt-) of the input port.
- Output voltage range
- Use the supply voltage of the device that the SN74LXC8T245 device is driving to determine the output voltage range.