Static random-access memory
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Static random-access memory is a type of random-access memory that uses latching circuitry to store each bit. SRAM is volatile memory; data is lost when power is removed.
A static RAM chip from a Nintendo Entertainment System clone (2K × 8 bits)
Imaged by scanning electron microscope; cell topology is clearly visible
Imaged by optical microscope
Ferroelectric RAM
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Ferroelectric RAM is a random-access memory similar in construction to DRAM but using a ferroelectric layer instead of a dielectric layer to achieve non-volatility. FeRAM is an alternative non-volatil
FeRAM by Ramtron