SYSTEM AND METHOD FOR IMPLEMENTING A SKEW-TOLERANT TRUE-SINGLE-PHASE-CLOCKING FLIP-FLOP
Patent, 2003

An exemplary skew-tolerant true-single-phase-clocking (TSPC) flip-flop is disclosed that reduces current spikes by allowing willful introduction of skew in the clock tree of a single-phase circuit design. More precisely, a split-clock TSPC flip-flop, which allows the flip-flop hold times to be met in the face of skewed clocks, which, in turn, reduces the maximum value of current spikes, can be substituted for a traditional TSPC flip-flop in a sequential logic circuit. The input of the split-clock TSPC flip-flop is latched according to a first clock signal, which was used in a preceding stage, while the output of the split-clock TSPC flip-flop is driven according to a second clock signal. The first and second clock signals can be skewed in time, but have the same frequency and substantially the same phase.; Metal Oxide Semiconductor (MOS) device can also be included within the split-clock TSPC flip-flop to reduce power dissipation in cases of large clock skew.

Uppfinnare

Alf Larsson

Organisation okänd

Lars Svensson

Chalmers, Institutionen för datorteknik

Telefonaktiebolaget L M Ericsson

US2003210085 (A1)

US19990306684 19990506

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Data- och informationsvetenskap

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2018-10-15