The SN74LS590N can handle clock frequencies up to 40 MHz.
To ensure proper synchronization, connect the clock input (CLK) to a stable clock source, and use the clock enable input (CE) to control the clock signal. Also, make sure to meet the setup and hold times for the clock and data inputs.
The SN74LS590N has a maximum data transfer rate of 40 Mbits/s.
To minimize metastability issues, ensure that the clock frequency is within the recommended range, and use synchronous design techniques. You can also use synchronization circuits or metastability-hardened flip-flops to reduce the risk of metastability.
The SN74LS590N is a 5V device, but it can be used in a 3.3V system with proper level shifting. Use a level translator or a voltage regulator to ensure that the voltage levels are compatible.