Editing Clock signal (section)

=== Dynamic frequency change ===

The vast majority of digital devices do not require a clock at a fixed, constant frequency. As long as the minimum and maximum clock periods are respected, the time between clock edges can vary widely from one edge to the next and back again.
Such digital devices work just as well with a clock generator that dynamically changes its frequency, such as [[spread spectrum clock|spread-spectrum clock generation]], [[dynamic frequency scaling]], etc. Devices that use [[static logic (digital logic)|static logic]] do not even have a maximum clock period (or in other words, minimum clock frequency); such devices can be slowed and paused indefinitely, then resumed at full clock speed at any later time.