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Serial SRAM is a type of memory that uses bistable latching circuitry (Flip-flop) to store each bit. The term static differentiates it from dynamic RAM which must be periodically refreshed. SRAM exhibits data remanence, which means there is a residual representation of the data that remains after the SRAM has been erased. However, it is still volatile in the conventional sense that data is eventually lost when the memory is not powered. onsemi serial SRAMs provide a lower-cost, more energy efficient alternative to EEPROM, FRAM, and standard SRAM. These SRAM products have been designed into smartwatches to provide buffer memory extension for the microcontroller. Many of the SRAM products have a battery-backed feature that allows them to function as if they were non-volatile. So even when the power goes out, the smart meter will not lose the information for a user’s power bill.
