FLEX10K logic element type Evaluate the statement: “The Altera FLEX10K family uses a look-up table (LUT) architecture within its logic elements.”

Difficulty: Easy

Correct Answer: Correct

Explanation:


Introduction / Context:
Many modern programmable devices implement combinational logic using look-up tables (LUTs). Knowing whether a given family is LUT-based helps predict resource mapping, timing, and synthesis behavior.



Given Data / Assumptions:

  • FLEX10K is an Altera (now Intel) FPGA family.
  • Its logic elements (LEs) implement functions using LUT-style structures and optional flip-flops for registered operation.
  • Routing and LAB organization support typical LUT-based compilation flows.


Concept / Approach:
LUT-based logic stores truth tables in small SRAM cells, allowing arbitrary Boolean functions up to a certain input width per LE. FLEX10K follows this paradigm, enabling synthesis tools to map sum-of-products or other forms into LUTs and registers efficiently.



Step-by-Step Solution:

Identify the family (FLEX10K) as FPGA, not PROM/PAL/CPLD.Recall that its LEs are LUT-driven with optional registers.Confirm that the core combinational fabric is LUT-based.Conclude the statement is accurate.


Verification / Alternative check:
Review family overviews: FLEX series documentation consistently describes LUT/LE organization within LABs.



Why Other Options Are Wrong:
“Incorrect” would deny vendor documentation and established architecture summaries.



Common Pitfalls:
Confusing FLEX10K with some CPLD families that rely on product-term macrocells rather than LUTs; FLEX10K is on the FPGA side.



Final Answer:
Correct

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