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Double Data Rate Synchronous Dynamic Random-Access Memory (DDR SDRAM) is a double data rate (DDR) synchronous dynamic random-access memory (SDRAM) class of memory integrated circuits used in computers. DDR SDRAM, also retroactively called DDR1 SDRAM, has been superseded by DDR2 SDRAM, DDR3 SDRAM, DDR4 SDRAM and DDR5 SDRAM.
9 wrz 2024 · What is DDR? DDR, short for double data rate, was introduced in 2000 as the next generation following SDRAM. DDR transfers data to the processor on both the downbeat and upbeat of the clock signal, so twice per cycle.
28 wrz 2022 · DDR is a version of SDRAM, a type of computer memory. Unlike SDR (single data rate) SDRAM, which can perform a read or write action once per clock cycle, DDR can perform two—one on the rising edge of the electrical signal and again on the falling edge.
3 lut 2023 · Learn about double date rate (DDR) memory key concepts and applications surrounding this digital communication technique, where two data words are transferred during one clock cycle.
10 lut 2021 · Double Data Rate (DDR) Synchronous Dynamic Random Access Memory (SDRAM) is a common type of memory used as RAM for most every modern processor. First on the scene of this stack of acronyms was Dynamic Random-Access Memory (DRAM), introduced in the 1970s. DRAM is not regulated by a clock.
The most significant difference between DDR and SDR is that DDR reads data on both the rising and falling edges of the clock signal, enabling a DDR memory module to transfer data twice as fast as an SDR memory module.
26 gru 2023 · Short for double data rate, DDR is memory that utilizes both the rising and falling edge of the system clock, potentially doubling its speed. The first version, sometimes called DDR1, was only used on high-end video cards and desktop computer memory.
