DDR memory

The computer memory is the key determinant of the number of programmes and applications that can run on a computer simultaneously. The DDR SDRAM represents Synchronous Dynamic Random Access Memory and features a synchronous interface. This means that before it reacts with the control inputs it awaits the signal from the clock, which pipelines the incoming instructions. The DDR SDRAM that stands for Double Data Rate SDRAM offers much greater bandwidth as compared to SDRAM. DDR SDRAM achieves double the rate of data transfer through the data transmission both on the rising and the falling edge of the clock. While a 133 MHz SDR SDRAM has an effective clock rate of 133 MHz, the effective clock rate of 133 MHz DDR SDRAM is 266 MHz.

The DDR SDRAM is available in different stick and module specifications. The PC-1600 is DDR SDRAM that’s specified to run at 100 MHz utilising DDR-200 chips, while the PC-2100 is a DDR-SDRAM memory module slated to operate at 133 MHz utilising DDR-266 chips. The DDR SDRAMs primarily use 184-pin DIMMs. RAM chips are available in various configurations that span from 128 MB to 256 MB to 512 MB to 1GB, etc. The DDR2 SDRAM is a double-data-rate two synchronous dynamic random access memory which runs at an even faster rate than the DDR memory.