Which volatile semiconductor memory uses transistor latch cells, requires no…
2023
Which volatile semiconductor memory uses transistor latch cells, requires no periodic refresh while powered, and provides faster data access than DRAM?
Answer: B. Static RAM (SRAM) — ConceptSRAM and DRAM are volatile random-access memories, but their bit cells operate differently. SRAM stores a bit in a bistable transistor latch, whereas…
- A.
Dynamic ROM
- B.
Static RAM (SRAM)
- C.
Dynamic RAM (DRAM)
- D.
Static ROM
- E.
Question not attempted
Attempted by 2780 students.
Show answer & explanation
Correct answer: B
Concept
SRAM and DRAM are volatile random-access memories, but their bit cells operate differently. SRAM stores a bit in a bistable transistor latch, whereas DRAM stores charge in a capacitor selected by a transistor.
A latch preserves its state while power is present, so SRAM needs no periodic refresh and supports lower access latency. A DRAM capacitor leaks charge, so DRAM needs refresh and extra activation/sensing work.
Application
The memory in the stem uses transistor latch cells.
It retains each powered bit without periodic refresh.
It is explicitly faster to access than DRAM; together these properties identify Static RAM (SRAM).
Contrast and cross-check
Dynamic RAM (DRAM) uses refreshed transistor-capacitor cells and is optimized for density.
Dynamic ROM and Static ROM are not standard RAM-cell memory classes.
Question not attempted does not identify a memory architecture.
Therefore, the answer is Static RAM (SRAM), matching RSSB’s final key for the source question.