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Transmeta LongRun2 Technology

Transmeta’s LongRun2, an upgrade version of its power management technology sports a new capability for dynamically adjusting a processor’s threshold voltage to reduce power leakage. The software will not ship in the first generation 130-nm Efficeon parts but follow at a later date. LongRun2 is a potentially broad solution to leakage problems that are emerging in chips made at the 90- and 65-nm nodes. Transmeta showed a demonstration in which LongRun2 adjusted threshold voltage on a CPU to virtually eliminate leakage current, taking power consumption in idle mode down from 144 to just 2mW. It depends on both hardware circuitry already in Efficeon and the software that is still in development.

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