Precharging of DRAM's

After the data is being fetched from the memory,a command called precharge needs to be given.This will close the current memory row address that was being used and allowing a new row address to be activated for the next data fetch.From the DRAM point of view this command is known as RAS Precharge.The time taken between the precharge command and the next active command(Read or write Command) issued is known as RAS precharge time(Trp).This time will affects the speed performance of the DRAM.So lesser time might cause Greater speed performance.