Winbond > Part Catalog/ Specialty DRAM > DDR SDRAM

DDR SDRAM

DDR SDRAM means Double Data Rate Synchronous DRAM.

Unlike SDR (Single Data Rate), which can only read or write once within a single clock cycle, the double data transfer rate of DDR refers to the ability to read or write twice within a single clock cycle, resulting in double the efficiency.

What is DDR SDRAM?

DDR SDRAM (Double-Data-Rate Synchronous- DRAM) is a type of DRAM that can read or write twice within a single clock cycle. It brings the double efficiency result.

The operation of DDR SDRAM reads data on both the rising and falling edges of each clock cycle, which makes DDR memory modules twice as fast in data transfer rate as SDR.

What are the benefits of Winbond DDR SDRAM?

Traditional SDR SDRAM can only transmit data on the rising edge of a signal, while DDR SDRAM can transmit data on both the rising and falling edges of a signal, allowing DDR to achieve twice the data transmission rate per clock cycle compared to SDR SDRAM.

Compared to the previous SDR SDRAM, DDR SDRAM can work with faster CPUs to produce better performance, making the system more efficient.

Winbond DDR SDRAM can provide a frequency of up to 250MHz.

What applications are suitable for DDR SDRAM?

DDR SDRAM is a widely used memory technology that can be applied to various types of computers and electronic devices to improve their performance and responsiveness.

E.g.

As a memory of the Mother board: DDR SDRAM is used to support running programs and data, in order to increase the computer's operation speed and performance.

As a memory of graphic card: to increase the speed and performance of graphics and media processing.

As a memory for switch /router and networking devices: to increase the data processing and response speed.

As a memory of embedded system: for application programs and data, to increase the device's running speed and performance.