Instant recovery power saving mode

Conventional power-saving modes work by turning off the power to a circuit block when it is not in use. In these modes, all state nodes lose their data, requiring complex initialization processes to restore functionality to the circuit. This typically requires long recovery times. Circuit blocks, which can contain thousands or even millions of gates, must remain fully active if even one gate is in use. Even when idle, the circuit must remain idle long enough to offset the energy overhead required to enter and exit power-saving mode. Reactivating a circuit block involves recharging the entire block, consuming significant energy. As a result, conventional circuits are often inefficient even when controlled by conventional power management methods, consuming power most of the time—even when they are not actively performing work.​

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UniRAM’s patented GreenMOS Hybrid Circuit, featuring a proprietary “Instant Recovery Power-Saving Mode,” sets CMOS circuits into a natural power saving state that consumes less than 1% of the standby power of conventional CMOS circuits. In this mode, state nodes retain their data, enabling the circuit to resume operation instantly without the need for complex recovery procedures. During active mode, GreenMOS Hybrid Circuits deliver the same performance and reliability as conventional CMOS circuits.​

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GreenMOS Hybrid Circuits are typically organized using a “small block architecture,” where an integrated circuit is divided into numerous small blocks. Each block remains in hybrid power-saving mode when idle and transitions to active mode the moment it is needed. With proper design, these circuits consume less than 1% of the active and standby power of conventional CMOS circuits. GreenMOS Hybrid Circuits are versatile, suitable for both core logic and embedded memory.