SRAM and flash memory

Which interface standard, built on PCI Express, is widely used to connect high-speed SSDs to the host?

  1. AIDE
  2. BUSB 1.1
  3. CNVMe
Show answer and explanation

Answer: C. NVMe

NVMe (NVM Express) is an interface standard designed to handle flash memory efficiently over PCI Express. It can process many command queues in parallel, achieving lower latency and higher bandwidth than SATA (AHCI), which was designed for HDDs.

  • A. IDE is an old parallel interface for HDDs.
  • B. USB 1.1 is a slow general-purpose interface.
  • C. Correct. It is the standard for high-speed PCIe SSDs.
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More SRAM and flash memory questions

  1. In SRAM, which correctly describes the "data retention voltage" that sets the lower limit when the supply is lowered during standby to reduce leakage?
  2. In a 6T SRAM cell, which design is needed so that the cell contents are not flipped during a read (to prevent read upset)?
  3. Which is an example of a "write assist" technique to prevent SRAM write failures at low voltage?
  4. In multi-level (MLC or TLC) NAND flash, why are the bit patterns assigned to adjacent threshold-voltage states chosen to differ by only one bit?
  5. In 3D NAND, what is the structure called in which the edge of the stack is shaped into steps so that each layer's word line can be connected?