Importance

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Abstract

Aspects of the disclosure are directed to multi-module frequency division. As may be implemented in accordance with one or more embodiments herein, an apparatus includes latching circuitry having three or fewer vertically-stacked transistors between power rails, which operate to provide output signals from input signals, the output signals having a frequency that is a divided representation of the frequency of the input signals. A pulse widening circuit modifies the output signals by widening a pulse thereof, providing a modified output signal. A further latching circuit may be utilized to perform a further frequency division of the modified output signal. The respective latching circuitry can be used to selectively provide frequency-divided output signals from input signals at respective divided frequencies.

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First Claim