Search results
Results from the WOW.Com Content Network
The static qualifier differentiates SRAM from dynamic random-access memory (DRAM): SRAM will hold its data permanently in the presence of power, while data in DRAM decays in seconds and thus must be periodically refreshed. SRAM is faster than DRAM but it is more expensive in terms of silicon area and cost.
SRAM consists of a series of transistors arranged in a flip-flop, which will hold one of two states as long as power is applied. Since the transistors have a very low power requirement, their switching time is very low. However, since an SRAM cell consists of several transistors, typically four or six, its density is much lower than DRAM.
This led to his development of a single-transistor DRAM memory cell. [18] In 1967, Dennard filed a patent under IBM for a single-transistor DRAM memory cell, based on MOS technology. [23] The first commercial DRAM IC chip was the Intel 1103, which was manufactured on an 8 μm MOS process with a capacity of 1 kbit, and was released in 1970. [10 ...
It is a set of small DRAM banks with an SRAM cache in front to make it behave much like a true SRAM. It is used in Nintendo GameCube and Wii video game consoles. Cypress Semiconductor 's HyperRAM [ 66 ] is a type of PSRAM supporting a JEDEC -compliant 8-pin HyperBus [ 67 ] or Octal xSPI interface.
[a] DRAM dominates for desktop system memory. SRAM is used for CPU cache. SRAM is also found in small embedded systems requiring little memory. SRAM retains its contents as long as the power is connected and may use a simpler interface, but commonly uses six transistors per bit. Dynamic RAM is more complicated for interfacing and control ...
SRAM is less dense and more expensive per bit than DRAM, but faster and does not require memory refresh. It is used for smaller cache memories in computers. CAM ( Content-addressable memory ) – This is a specialized type in which, instead of accessing data using an address, a data word is applied and the memory returns the location if the ...
Non-volatile random-access memory (NVRAM) is random-access memory that retains data without applied power. This is in contrast to dynamic random-access memory (DRAM) and static random-access memory (SRAM), which both maintain data only for as long as power is applied, or forms of sequential-access memory such as magnetic tape, which cannot be randomly accessed but which retains data ...
Square array of DRAM memory cells being read. Logic circuits without memory cells are called combinational, meaning the output depends only on the present input. But memory is a key element of digital systems. In computers, it allows to store both programs and data and memory cells are also used for temporary storage of the output of ...