This document discusses different types of semiconductor memory used in computing systems. It describes volatile memory like static RAM (SRAM) and dynamic RAM (DRAM), as well as non-volatile memory such as ROM, MRAM, and flash memory. The basic unit of semiconductor memory is the memory cell, which can store a single bit using MOS or CMOS fabrication. Memory architectures are organized in arrays or hierarchies to store large amounts of data within computer systems.

1. Semiconductor Memories www.ustudy.in

3. Semiconductor memory www.ustudy.in

6. Memory cell operation www.ustudy.in

8. Semiconductor memory classification www.ustudy.in

9. Memory Architecture: Decoders www.ustudy.in

10. Array-Structured memory Architecture www.ustudy.in

11. Hierarchical memory Architecture www.ustudy.in

12. Memory Timing Definitions www.ustudy.in

13. Memory Timing Approaches www.ustudy.in

16. 6- Transistor CMOS SRAM Cell www.ustudy.in

17. CMOS SRAM Analysis (Write) www.ustudy.in

18. CMOS SRAM Analysis (Read) www.ustudy.in

19. 6T- SRAM - Layout www.ustudy.in V DD GND Q Q WL BL BL M1 M3 M4 M2 M5 M6

20. 3- Transistor DRAM Cell www.ustudy.in

21. 3-T DRAM Layout www.ustudy.in BL2 BL1 GND RWL WWL M3 M2 M1

23. 1-T DRAM cell www.ustudy.in

24. Semiconductor Memory Trends Memory Size as a function of time: x 4 every three years www.ustudy.in

25. Semiconductor Memory Trends Increasing die size factor 1.5 per generation Combined with reducing cell size factor 2.6 per generation www.ustudy.in

26. Semiconductor Memory Trends Technology feature size for different SRAM generations www.ustudy.in