What does refresh rate or count refer to (such as, 1K, 2K, or 4K)?
The term “4K refresh,” for example, refers to the number of refresh cycles required to refresh all sections of the memory array and is determined by the number of row addresses. (12 addresses will address 4096, or 4K, locations. Similarly, 11 addresses will address 2048, or 2K, locations.) Data stored in DRAM devices is volatile. To maintain data integrity, DRAM requires a power source and continuous refreshing. DRAMs are specified at different refresh rates that may or may not be compatible with a particular PC model. Macintosh computers are compatible with widely available DRAM devices. For example, below are three common 16 MBit DRAM devices used to construct SIMMs or DIMMs. . Organization Refresh-Addressing Refresh-Addressing 4M x 4 4K – 12/10 2K – 11/11 2M x 8 4K – 12/9 2K – 11/10 1M x 16 4K – 12/8 1K – 10/10 . This information demonstrates that 4M x 4 devices come in 4K and 2K refresh rates, with 12/10 and 11/11 addressing, respectively. Addressing notation refers to a matrix arr
