Duty cycle independent tunable clock

摘要

An internal clock that generates a signal from a system clock is provided. The signal generated by the internal clock has a duty cycle that is independent of the system clock. The internal clock may be tuned to provide a desired duty cycle that corresponds to the period required for an operation such as a write to memory. The internal clock may provide a duty cycle that is longer or shorter than the system clock. The signal generated by the internal clock has the same period as the signal generated by the system clock to maintain synchronization of system operations.