Chapter 11 Memory and Advanced Digital Circuits

1. Chapter 11Memory and Advanced Digital Circuits • Introduction • 11.1 Latches and flip-flops • 11.3 Semiconductor memories : types and architectures • 11.4 Random- Access-Memory (RAM) • 11.5 Sense amplifiers and address decoders • 11.6 Read-Only- Memory • 11.8 BiCMOS digital ciruits

2. 11.1 Latches and Flip- flopsFig. 11.1 (a) Basic latch . (b) The latch with the feedback loop opened .

3. Fig. 11.1 (cont’d) . (c)Determining the operating points of the latch

10. 11.1.2 The SR Flip- FlopFig. 11.2 (a) The set/ reset flip flop and (b) its truth table .

14. Example 11.1

21. 11.1.5 D Flip- Flop Circuits

22. Fig. 11.7 A simple implementation of the D flip- flop with its waveforms

26. Fig. 11.8 (b) Waveform of the master-slave D flip-flop

29. 11.3 Semiconductor memories : types and architectures

30. 11.3.1 Memory chip organization

34. DRAM vs SRAM

35. DRAM refresh cycle and refresh rate(after writing a 1 and subsequent refresh operations)

36. 11.3.2 Memory -chip timing

37. Exercise 11.8

39. 11.4 Random access memory (RAM) cells

40. Fig. 11.18A CMOS SRAM memory cell

46. Example 11.2