Fast programmable divider

Electrical pulse counters – pulse dividers – or shift registers: c – Systems – Pulse multiplication or division

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Details

377116, H03K 2100, H03K 2116

Patent

active

057546150

ABSTRACT:
This invention relates to a programmable frequency divider that includes a plurality of flip-flops that are clocked at a frequency to be divided. The plurality of flip-flops is operatively arranged to allow the connection in a ring of a predetermined number of them, selected according to a desired frequency division ratio. In one embodiment, the smallest selectable ring includes at least two successive flip-flops that are initialized to a first state, immediately followed by at least two successive flip-flops that are initialized to the opposite state.

REFERENCES:
patent: 4951303 (1990-08-01), Larson
patent: 5077764 (1991-12-01), Yamashita
JP-A-56 107636 (Tateshi Denki K.K.).

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