AN52433 - Advantages of Serial Peripheral Interface (SPI) nvSRAM over SPI EEPROM in Metering Applications
Last Updated: 06/26/2012
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Version: *E
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Cypress’s serial peripheral interface(SPI) nvSRAM nonvolatile memory technology has significant advantages when compared to conventional SPI EEPROM solutions. This technology is aimed at designers and architects of the latest ‘smart’ electrical energy meters.The nonvolatile memory is a critical component in such a meter. It stores valuable energy consumption and environmental data (such as suspicious physical changes which may signify an attempt to tamper with the meter) over time.
The smart meter uploads stored information over the network that links it to the supply infrastructure. In pursuit of reduced energy consumption and efficient electric energy use, different metrics of energy consumption (active power, reactive power, apparent power, sometimes both imported and exported) are recorded at fine granularity. More...
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Related Application Notes:
Domain Tags: Serial, SPI, Non Volatile Memories, non-RTC
Related Knowledge Base: Migration Path, nvSRAM, SPI, Vcap, RECALL, HOLD
Spec No: 001-52433;
Sunset Owner: ZSK;
Secondary Owner: PSR;
Sunset Date: 07/20/11
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