IC packaging terminology: When used with an integrated circuit part description, the term “QUAD” indicates the device contains how many identical circuits (functions) in one package?

Difficulty: Easy

Correct Answer: 4 circuits

Explanation:


Introduction / Context:
Digital logic ICs are commonly described as single, dual, triple, quad, or hex, indicating how many identical gate functions are integrated in one package. This helps with part selection and schematic reading.



Given Data / Assumptions:

  • “Quad” is a standard descriptor across TTL/CMOS families.
  • Examples: 7408 (quad 2-input AND), 7432 (quad 2-input OR).



Concept / Approach:
“Quad” means four. Therefore a quad IC contains four identical functions (e.g., four AND gates) within the package.



Step-by-Step Solution:
Interpret term “quad.”Map to quantity → 4.Answer: 4 circuits per package.



Verification / Alternative check:
Compare with “hex” (6 inverters in 7404) and “dual” op-amps (two amplifiers per chip).



Why Other Options Are Wrong:
2, 6, 8, 12 circuits: do not match the definition of “quad.”



Common Pitfalls:
Confusing “quad” with “hex” (common because 7404 is hex inverters, not quad).



Final Answer:
4 circuits

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