Static RAM (SRAM, S-RAM) is a type of memory system that requires power to store its data. It is commonly used for high-speed registers, caches, and smaller memory banks, like frame buffers in graphics cards. In contrast, a computer’s main memory is typically dynamic RAM (DRAM).
SRAM is fast and reliable because of the six transistors that maintain the current flowing in one direction or the other in its flip-flop circuits. This allows for quicker read and write operations without waiting for a capacitor to fill up or drain. Although SRAM cells take up more space than DRAM cells, their efficiency and speed make them ideal for certain applications.
Newer synchronous static RAM devices have overlapping read and write operations, making them even more efficient. Access times for SRAM chips are in the range of 10 to 30 ns, compared to over 50 ns for dynamic RAM.
FAQ:
What is SRAM used for?
SRAM is commonly used for high-speed registers, caches, and smaller memory banks, like frame buffers in graphics cards.
What makes SRAM faster than DRAM?
SRAM is faster because it uses six transistors to maintain current in its flip-flop circuits, allowing for quicker read and write operations.
What are the access times for SRAM?
Access times for SRAM chips are typically in the range of 10 to 30 ns.
In conclusion, SRAM is a fast, reliable, and efficient memory system that is commonly used in high-speed applications. Its six-transistor design makes it faster than DRAM, and newer devices with overlapping read and write operations are even more efficient. Access times for SRAM range from 10 to 30 ns, making it an ideal choice for certain applications.
