Articles :: A Description of Common Memory ::

Doc Overclock · 12-29-2000 · Category: Tech-planations


SDRAM (Synchronous Dynamic Random Access Memory) is the most commonly used memory on the market at the present time. It has a 168-pin configuration and is powered by 3.3 volts, and is made by many manufactures in memory sizes of 32 to 512 MB single-chip solutions. All SDRAM are DIMMS (Dual In-line Memory Modules). The DIMM uses a 64-bit data path, or a 72-bit data path with parity bits. The SDRAM memory chips are based on a 64-bit data channel. Therefore, if using SDRAM memory chips, only one DIMM would fill the data channel. As for the older SIMM modules, they required the memory to be used in pairs, making it so you had to use two at a time.


  1. SDRAM
  2. RDRAM
  3. DDR
  4. Flash ROM
  5. Cache