Memory cell technology distinction: Evaluate the statement: "DRAM uses a cross-transistor configuration." Clarify the difference between dynamic RAM (DRAM) and static RAM (SRAM) cell structures.

Introduction / Context:
Dynamic RAM (DRAM) and static RAM (SRAM) implement memory cells differently, trading density for speed and complexity. Knowing the cell structure helps explain refresh requirements, power behavior, and typical applications.

Given Data / Assumptions:

• The claim says DRAM uses a “cross-transistor configuration.”
• We compare canonical DRAM and SRAM cell topologies.
• Terminology: cross-coupled (or cross-latched) generally refers to two inverters forming a bistable latch (SRAM).

Concept / Approach:
DRAM cells are typically 1T1C: one access transistor (the “T”) and one storage capacitor (the “C”). The capacitor holds charge to represent a bit and must be periodically refreshed because charge leaks over time. SRAM cells are commonly 6T in CMOS: two cross-coupled inverters (forming a stable latch) plus access transistors. Therefore, the phrase “cross-transistor configuration” fits SRAM, not DRAM.

Step-by-Step Solution:
1) Identify DRAM cell: one transistor connects the storage capacitor to the bitline when the wordline is asserted.2) Recognize the need for refresh: stored charge decays → periodic read/restore.3) Contrast with SRAM: two cross-coupled inverters maintain state without refresh while powered.4) Conclude the claim about DRAM is incorrect; cross-coupled topology characterizes SRAM.

Verification / Alternative check:
Introductory VLSI texts depict DRAM 1T1C cells and SRAM 6T latch cells; timing diagrams show DRAM refresh cycles absent in SRAM.

Why Other Options Are Wrong:
“Correct” contradicts mainstream DRAM design. The 6T/4T options mis-attribute SRAM-like latch structures to DRAM and omit the capacitor central to DRAM.

Common Pitfalls:
Assuming all memories use latches; overlooking the capacitor in DRAM; conflating cell topology with sense-amplifier cross-coupling (a separate concept).

Final Answer:
Incorrect