1. ECE/CS 352 Digital System Fundamentals© T. Kaminski & C. Kime 1 ECE/CS 352 Digital Systems Fundamentals Spring 2001 Chapter 6 – Part 2 Tom Kaminski & Charles R. Kime

2. ECE/CS 352 Digital System Fundamentals Chapter 4 Page 2 Overview of Chapter 6 – Part 2 RAM Integrated Circuits  Dynamic RAM Array of RAM Integrated Circuits Arrays of Static and Dynamic RAMs Programmable Logic Technologies Introduction Read-Only Memory Programmable Logic Array Programmable Array Logic VLSI Programmable Logic

3. ECE/CS 352 Digital System Fundamentals Chapter 4 Page 3 Dynamic RAM (DRAM) Basic Principle: Storage of information on capacitors. Charge and discharge of capacitor to change stored value Use of transistor as “switch” to:  Store charge  Charge or discharge See Figure 6-12 in text for circuit, hydraulic analogy, and logical model.

4. ECE/CS 352 Digital System Fundamentals Chapter 4 Page 4 Dynamic RAM (DRAM) Block Diagram – See Figure 6-13 in text Refresh Controller and Refresh Counter Read and Write Operations –Application of row address –Application of column address –Why is the address split? –Why is the row address applied first? Timing – See Figure 6-15 in text

5. ECE/CS 352 Digital System Fundamentals Chapter 4 Page 5 Making Larger Memories

6. ECE/CS 352 Digital System Fundamentals Chapter 4 Page 6 Making Wider Memories

7. ECE/CS 352 Digital System Fundamentals Chapter 4 Page 7 Programmable Logic

8. ECE/CS 352 Digital System Fundamentals Chapter 4 Page 8 Programmable Part Types

9. ECE/CS 352 Digital System Fundamentals Chapter 4 Page 9 Programming Devices

10. ECE/CS 352 Digital System Fundamentals Chapter 4 Page 10 Read Only Memory

11. ECE/CS 352 Digital System Fundamentals Chapter 4 Page 11 Read Only Memories (Continued)

12. ECE/CS 352 Digital System Fundamentals Chapter 4 Page 12 Read Only Memories (Continued)

13. ECE/CS 352 Digital System Fundamentals Chapter 4 Page 13 Programmable Array Logic (PAL)

14. ECE/CS 352 Digital System Fundamentals Chapter 4 Page 14 Programmable Array Logic (Cont.)

15. ECE/CS 352 Digital System Fundamentals Chapter 4 Page 15 Programmable Array Logic (Cont.)

16. ECE/CS 352 Digital System Fundamentals Chapter 4 Page 16 Programmable Array Logic (Cont.)

17. ECE/CS 352 Digital System Fundamentals Chapter 4 Page 17 Programmable Logic Array (PLA)

18. ECE/CS 352 Digital System Fundamentals Chapter 4 Page 18 Summary of Programmable Logic

19. ECE/CS 352 Digital System Fundamentals Chapter 4 Page 19 ROM, PAL, PLA Examples

20. ECE/CS 352 Digital System Fundamentals Chapter 4 Page 20 ROM, PAL, PLA Implementations

21. ECE/CS 352 Digital System Fundamentals Chapter 4 Page 21 ROM Implementation

22. ECE/CS 352 Digital System Fundamentals Chapter 4 Page 22 ROM Implementation (Continued)

23. ECE/CS 352 Digital System Fundamentals Chapter 4 Page 23 PAL Implementation

24. ECE/CS 352 Digital System Fundamentals Chapter 4 Page 24 PAL Implementation (Continued)

25. ECE/CS 352 Digital System Fundamentals Chapter 4 Page 25 PLA Implementation

26. ECE/CS 352 Digital System Fundamentals Chapter 4 Page 26 PLA Implementation (Continued)