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Shadow nonvolatile backup is a feature of the standalone serial SRAM memory known as EERAM from Microchip Technology.
When system power is lost, EERAM uses a tiny external capacitor to supply the necessary energy to transfer the contents of the SRAM to the nonvolatile cells. There is no requirement for an extra battery, unlike nvSRAM.
Our serial EERAM is a cutting-edge, reasonably priced SRAM chip with a nonvolatile memory backup for use in automotive systems that must swiftly and reliably restore data during a power outage.
The active SRAM array content is transferred to the device’s nonvolatile bits during any power outage. The nonvolatile data is automatically copied back to the SRAM array so that operation may resume when the power is restored.
EERAM offers more than 1,000,000 backups to the nonvolatile cells in addition to limitless read and write cycles for SRAM.
Our automotive serial EERAM devices, like all of our automotive-grade memory products, are AEC-Q100 certified and ISO/TS16949 compliant to fulfil the exacting standards for quality, dependability, and a lengthy product lifecycle demanded by automotive designers.
The Global Automotive Serial EERAM Market accounted for $XX Billion in 2022 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2023 to 2030.
With Microchip Technology’s newest EERAM product, an older incumbent memory might compete with MRAM’s desire to replace SRAM with battery backup.
A new generation of freestanding, Serial Peripheral Interface (SPI) EERAM was recently introduced by the business.
It is designed for applications that require the capacity to automatically restore material if power is interrupted while processing and entail repetitive task data logging. Examples of applications for this capacity include smart metres and manufacturing equipment.
Long-standing solutions have included SRAM with a battery to keep memory active in the event of a power outage, but Microchip product marketing manager Grant Hulse noted that such a nonvolatile serial RAM (NVSRAM) solution tends to be the most expensive per-bit memory option, despite typically low densities.
The EERAM from Microchip is essentially a serial SRAM with non-volatile transistors in every cell. No external battery is required, in contrast to NVSRAM, he claimed.
When system power is lost, it uses a small external capacitor to store the energy required to transfer the contents of the SRAM to the nonvolatile cells. This is done by the IC monitoring the voltage at the common collector and handling the transfer of data between the SRAM and the nonvolatile memory when necessary.
