Static Random-Access Memory (SRAM) ○ Entries

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Static Random-Access Memory (SRAM) ○｜Definition｜1st｜20260605184914-00-⌔

Static random-access memory - Wikipedia

Static random-access memory

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Static random-access memory (static RAM or SRAM) is a type of random-access memory (RAM) that uses latching circuitry (flip-flop) to store each bit. SRAM is volatile memory; data is lost when power is removed.

The static qualifier differentiates SRAM from dynamic random-access memory (DRAM):

• SRAM will hold its data permanently in the presence of power, while data in DRAM decays in seconds and thus must be periodically refreshed.
• SRAM is faster than DRAM but it is more expensive in terms of silicon area and cost.
• Typically, SRAM is used for the cache and internal registers of a CPU while DRAM is used for a computer’s main memory.

Printed 2026-06-28.

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