Integrated Circuit Reset Extension for Low-Voltage Standby Blocks

The patent introduces a voltage boosting circuit as an intermediary component between the low-voltage memory portion and the reset logic. This circuit temporarily boosts the supply voltage from the second voltage level to the first voltage level during reset operations, enabling the reset function to operate reliably even when the memory portion runs on lower voltage for energy savings. The intermediary circuit resolves the contradiction by providing voltage enhancement only when needed for resetting, without requiring the entire system to operate at higher voltage continuously.

The patent implements dynamic voltage adjustment where the supply voltage to the memory portion is adaptively changed based on operational requirements. During normal standby operation, the voltage remains at the lower second level to minimize power consumption. However, when a reset operation is detected or required, the voltage is dynamically boosted to the first level to ensure proper reset functionality. This dynamic switching resolves the contradiction between low power consumption and effective reset operation.

The patent changes the voltage parameter dynamically during the reset process. When a reset signal is received at the lower voltage level (0.66V-0.9V), the system detects this condition and automatically adjusts the supply voltage upward to the first voltage level (above 0.9V) to complete the reset operation successfully. This parameter change ensures that the reset logic receives sufficient voltage to properly reset the circuit, even though the memory portion operates at lower voltage for power savings. The resolution maintains reliable reset completion while preserving energy-efficient operation during normal states.