ROM Troubleshooting and K-Maps: 16x4 ROM Truth Table Homework Problem

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SUMMARY

The discussion focuses on a homework problem involving a 16x4 ROM truth table and K-maps for functions F, G, and H. Participants express confusion regarding the absence of specific functions needed to complete the truth table and K-maps. It is established that four functions are required for the four outputs, and the mention of only eight product terms raises questions about the problem's feasibility. The consensus is to seek clarification from the instructor for the missing information.

PREREQUISITES
  • Understanding of ROM (Read-Only Memory) architecture
  • Familiarity with K-maps (Karnaugh maps) for simplification of Boolean functions
  • Knowledge of truth tables and their construction
  • Basic concepts of digital logic design
NEXT STEPS
  • Research how to construct a truth table for a 16x4 ROM
  • Learn the process of creating K-maps for multiple output functions
  • Study the implications of "don't care" conditions in digital logic
  • Explore common pitfalls in digital design homework assignments
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Students studying digital logic design, educators teaching ROM and K-map concepts, and anyone involved in troubleshooting digital circuit homework problems.

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Homework Statement



a) complete the table for the 16 x 4 ROM shown and indicate on the diagram how the inputs and outputs are connected to the ROM.

b) Show your K-maps for functions F, G, and H and complete diagram on following page. Note that only 8 product terms are needed.

Homework Equations


none


The Attempt at a Solution



In order to do the truth table, don't you need some sort of functions? In part b it says to k-map functions F G and H. But it doesn't give us an F G or H. And wouldn't there need to be 4 functions for the 4 outputs? And I don't see why only 8 terms would be needed for the diagram either. I can't see how this is possible to even start.
 

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Well, one of the outputs is marked as an X, presumably meaning "don't care" because it isn't used. But otherwise, yeah, you're going to need F, G, and H. Go ask your teacher for the rest of the problem.
 
Alright good, I thought I knew how to do these and this completely threw me off. I'll ask him for it tomorrow.

Thanks
 

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