CPLD vs. PLD relationship “A CPLD is basically a simplified PLD.” Decide whether this statement accurately describes how CPLDs relate to simple PLDs.

Introduction / Context:
Programmable logic spans from simple devices (PALs/GALs) to complex devices (CPLDs) and large FPGAs. Accurately describing their relationship helps set expectations about capacity, speed, and suitability for a task.

Given Data / Assumptions:

• SPLDs (simple PLDs) implement relatively small SOP logic.
• CPLDs scale that concept with many more macrocells, interconnect, and features.
• Claim says a CPLD is “simplified” relative to a PLD.

Concept / Approach:
A CPLD is not a simplified form of a PLD; it is a more complex, higher-capacity evolution. The “C” in CPLD stands for “Complex,” indicating more resources, richer interconnect, and often better timing control than small PALs/GALs. While CPLDs preserve the sum-of-products style, they expand it significantly. Therefore, the statement inverts the relationship and is incorrect.

Step-by-Step Solution:
Recognize SPLD → CPLD progression: capacity and features increase.Note that “simplified” would imply fewer resources or reduced features.Conclude the description is backwards; select Incorrect.

Verification / Alternative check:
Vendor documentation and textbooks consistently define CPLDs as larger, more capable logic devices than SPLDs.

Why Other Options Are Wrong:
“Correct” contradicts the definition. Density or “marketing phrase” do not change the fundamental meaning.

Common Pitfalls:
Confusing the similarity of logic style (SOP) with device complexity; assuming the naming is arbitrary.

Final Answer:
Incorrect