STATIC
MEMORY
EMON SHAHRIARE
ID : 232-15-725
Md. Mehedi Hasan
ID : 232-15-497
Maria Rashid
ID : 232-15-160
OUR TEAM
ID : 232-15-725
Md. Mehedi Hasan
ID : 232-15-497
ID : 232-15-272
Farhan Rahman
ID : 232-15-562
Md Alif Rabbi
ID : 232-15-601
OVERVIEW
• Introduction
• What is Static Memory?
• Static vs Dynamic Memory
• Structure of SRAM Cell
• Working of Static Memory
• Advantages
• Disadvantages
• Static Memory in Modern Processors
• Future Trends in Static Memory
• Applications
• Conclusion
INTRODUCTIO
N
Static memory, a key component in digital logic design, refers to memory that
retains stored data as long as power is supplied. Unlike dynamic memory, which
requires constant refreshing to maintain information, static memory holds its
contents using flip-flop circuits. This characteristic makes it highly reliable and
faster in performance. Static memory is commonly implemented in the form of
Static Random Access Memory (SRAM) and is widely used in applications that
require high-speed data access, such as processor cache and embedded
systems. Its role in enhancing overall system performance makes it an essential
topic in the study of digital electronics.
WHAT IS STATIC MEMORY?
• SRAM uses flip-flops to store each bit.
• Data is stable and does not need to be
refreshed.
• Faster and more reliable than DRAM.
• More expensive and consumes more power.
Feature Static Memory (SRAM)
Dynamic Memory
(DRAM)
Data Retention
Retains as long as power
is on
Needs to be refreshed
Speed Faster Slower
Cost Expensive Cheaper
Power Consumption Higher Lower
Usage Cache Main memory
STATIC VS DYNAMIC
MEMORY
STRUCTURE OF SRAM CELL
• Typically made using 6 transistors (6T) per bit:
⚬ 2 cross-coupled inverters (4 transistors)
⚬ 2 access transistors
• Stores one bit per cell.
• Includes diagrams of 6T SRAM cell (optional
visual).
WORKING OF STATIC
MEMORY
• Write Operation: Data is written by enabling
word line and passing data through bit lines.
• Read Operation: Data is read from the bit lines
while the word line is active.
• No refresh needed as data is stored in bistable
latches.
ADVANTAGES
• High speed
• Simpler control logic (no refresh
circuitry)
• Data retention as long as power is
supplied
• Reliable and consistent performance
DISADVANTAGES
• Higher cost per bit
• Larger cell size (takes more chip
area)
• Higher power consumption
• Not suitable for high-density
memory applications
Static Memory in Modern
Processors
• SRAM is used in CPU caches (L1, L2, L3)
• Enables fast access to frequently used data
• Found in registers, buffers, and pipelines
• Reduces latency and boosts performance
• Common in embedded systems and SoCs
Future Trends in Static
Memory
• SRAM scaling issues at advanced nodes
• FinFET SRAM improves stability & leakag
• STT-RAM and MRAM show future promise
• Focus on low-power, high-density designs
• Balancing speed, efficiency, and scalability
APPLICATIONS
• CPU cache (L1, L2, L3).
• Embedded systems.
• High-speed registers.
• Networking devices and routers.
CONCLUSION
• Static Memory plays a crucial role in high-speed data
access in digital systems.
• Its speed and reliability make it ideal for critical
components like cache memory.
• Despite being costly, its benefits make it essential in
modern digital design.
THANK
YOU

Static Memory Understanding Static Memory: Principles and Applications in Digital Systems.pptx

  • 1.
  • 2.
    EMON SHAHRIARE ID :232-15-725 Md. Mehedi Hasan ID : 232-15-497 Maria Rashid ID : 232-15-160 OUR TEAM ID : 232-15-725 Md. Mehedi Hasan ID : 232-15-497 ID : 232-15-272 Farhan Rahman ID : 232-15-562 Md Alif Rabbi ID : 232-15-601
  • 3.
    OVERVIEW • Introduction • Whatis Static Memory? • Static vs Dynamic Memory • Structure of SRAM Cell • Working of Static Memory • Advantages • Disadvantages • Static Memory in Modern Processors • Future Trends in Static Memory • Applications • Conclusion
  • 4.
    INTRODUCTIO N Static memory, akey component in digital logic design, refers to memory that retains stored data as long as power is supplied. Unlike dynamic memory, which requires constant refreshing to maintain information, static memory holds its contents using flip-flop circuits. This characteristic makes it highly reliable and faster in performance. Static memory is commonly implemented in the form of Static Random Access Memory (SRAM) and is widely used in applications that require high-speed data access, such as processor cache and embedded systems. Its role in enhancing overall system performance makes it an essential topic in the study of digital electronics.
  • 5.
    WHAT IS STATICMEMORY? • SRAM uses flip-flops to store each bit. • Data is stable and does not need to be refreshed. • Faster and more reliable than DRAM. • More expensive and consumes more power.
  • 6.
    Feature Static Memory(SRAM) Dynamic Memory (DRAM) Data Retention Retains as long as power is on Needs to be refreshed Speed Faster Slower Cost Expensive Cheaper Power Consumption Higher Lower Usage Cache Main memory STATIC VS DYNAMIC MEMORY
  • 7.
    STRUCTURE OF SRAMCELL • Typically made using 6 transistors (6T) per bit: ⚬ 2 cross-coupled inverters (4 transistors) ⚬ 2 access transistors • Stores one bit per cell. • Includes diagrams of 6T SRAM cell (optional visual).
  • 8.
    WORKING OF STATIC MEMORY •Write Operation: Data is written by enabling word line and passing data through bit lines. • Read Operation: Data is read from the bit lines while the word line is active. • No refresh needed as data is stored in bistable latches.
  • 9.
    ADVANTAGES • High speed •Simpler control logic (no refresh circuitry) • Data retention as long as power is supplied • Reliable and consistent performance
  • 10.
    DISADVANTAGES • Higher costper bit • Larger cell size (takes more chip area) • Higher power consumption • Not suitable for high-density memory applications
  • 11.
    Static Memory inModern Processors • SRAM is used in CPU caches (L1, L2, L3) • Enables fast access to frequently used data • Found in registers, buffers, and pipelines • Reduces latency and boosts performance • Common in embedded systems and SoCs
  • 12.
    Future Trends inStatic Memory • SRAM scaling issues at advanced nodes • FinFET SRAM improves stability & leakag • STT-RAM and MRAM show future promise • Focus on low-power, high-density designs • Balancing speed, efficiency, and scalability
  • 13.
    APPLICATIONS • CPU cache(L1, L2, L3). • Embedded systems. • High-speed registers. • Networking devices and routers.
  • 14.
    CONCLUSION • Static Memoryplays a crucial role in high-speed data access in digital systems. • Its speed and reliability make it ideal for critical components like cache memory. • Despite being costly, its benefits make it essential in modern digital design.
  • 15.