The CD4067BM96 can operate up to 5 MHz, but the actual frequency of operation depends on the specific application and the quality of the clock signal.
To ensure signal integrity, use a low-impedance output driver, minimize trace lengths, and use a ground plane to reduce noise and crosstalk.
The recommended power-on sequence is to apply VCC first, followed by the clock signal, and then the input signals. This ensures proper initialization of the device.
Metastability can be handled by using synchronous design techniques, such as using a synchronizer or a metastable-hardened flip-flop, and ensuring that the clock frequency is at least 10 times the input signal frequency.
The maximum input voltage for the CD4067BM96 is 5.5V, which is the absolute maximum rating. The recommended operating voltage is 5V ± 10%.