What does nvSRAM do when power is interrupted?

When power is interrupted, nvSRAM (non-volatile Static RAM) is designed to preserve the data stored in its memory. This technology combines the speed of SRAM with non-volatile storage capabilities, ensuring that the data remains intact even when there is a power loss. Unlike traditional SRAM, which loses its data when power is cut, nvSRAM automatically writes the contents to a non-volatile memory component (such as EEPROM) upon power loss. This feature makes nvSRAM especially useful in applications where data integrity and retention during power outages are critical, allowing the system to quickly recover and resume operations without data loss.

In contrast, the other options do not accurately describe the functionality of nvSRAM. Shutting down all network operations pertains to network management procedures rather than memory behavior. Increasing data transfer speed is a characteristic more related to communication protocols or different types of memory technology, rather than the reaction to power loss. Lastly, replacing existing memory storage doesn't reflect the nature of nvSRAM, which is intended to function alongside existing memory technologies rather than outright replacing them.