The maximum frequency of the clock signal that can be used with the TPIC6C595DRG4 is 30 MHz.
To ensure that the output pins are in a high-impedance state during power-up, connect the OE (output enable) pin to VCC through a pull-up resistor. This will keep the outputs in a high-impedance state until the OE pin is pulled low.
Each output pin of the TPIC6C595DRG4 can source up to 25 mA and sink up to 50 mA.
To reset the shift register to its initial state, pulse the MR (master reset) pin low. This will clear the shift register and set all outputs to a low state.
Yes, the TPIC6C595DRG4 can be used as a level shifter. The input voltage can be as low as 3.3V, and the output voltage can be as high as 5V.