The TLC542CDWR can sink or source up to 25mA of current per output.
To ensure that the outputs are in a high-impedance state during power-up or power-down, connect a 1kΩ to 10kΩ pull-up resistor to VCC on each output pin.
The recommended operating voltage range for the TLC542CDWR is 4.5V to 5.5V.
To reduce EMI, use a ground plane, keep signal traces short, and use a low-pass filter or a ferrite bead on the output lines.
Yes, the TLC542CDWR can be used as a level translator. It can translate logic levels from 3.3V to 5V or vice versa.