sdram synchronous dram

Dram sram sdram differences I read a book just now and have a better understanding of SRAM dram. The following statement is not comprehensive. I suggest reading a book to see why DRAM needs to be refreshed.This is determined by the ram design type. DRAM uses a T and

order, regardless of the location of the previous access.Each bit in the SRAM is stored in four transistors, which form two cross-coupled backbones. . This storage unit has two stable states, usually 0 and 1. In addition, two access transistors are required to control access to the storage units during read or write operations. Therefore, A storage space usually requires six Enis. . Symmetric circuit structure makes the access speed of SRAM faster than that of

ROM and ram refer to the semiconductor memory, ROM is the abbreviation of Read only memory, RAM is the abbreviation of random Access memory. Rom can still hold data while the system is powered off, and ram usually loses data after power-down, typical RAM is the memory of the computer. There are two main types of RAM, a static RAM, which is very fast, is the fastest storage device to read and write, but it is also very expensive, so it is only used in very demanding places, such as CPU Ram/sram,

refresh operation, of course) in each cycle. In fact, the current mainstream high-speed memory is Ssram (synchronous SRAM) and SDRAM (synchronous DRAM). At present, it is convenient to buy the maximum capacity of Ssram is 8mb/, the maximum working speed is 166MHz; can easily buy the

about the SRAM , DRAM , SDRAMSRAM : Static random memory, do not need to refresh the circuit, which makes static RAM faster than dynamic RAM, but, because he contains more devices, low integration, not suitable for large capacity of memory, generally used in the processor's cache, SRAM speed is very fast, In the fast read and refresh to ensure data integrity, SRAM circuit structure is very complex, the production of the same capacity SRAM than the cos

SRAM will still disappear (known as volatile memory), which is different from the ROM or flash memory that can store data after a power outage.Sdram:synchronous dynamic random access memory (synchronous dynamic random-access memory, referred to as SDRAM) is a dynamic random access memory (DRAM) with a synchronous inte

refers to the memory work needs synchronous clock, the internal command of the sending and transmission of data are based on it as a benchmark; dynamic means that the storage array needs to be constantly refreshed to ensure that the data is not lost; Flash is flash. It is a long-life non-volatile (in the case of a power outage can still hold the stored data information) of the memory, data deletion is not in a single byte units but in fixed chunks (n