Reduced Latency DRAM (RLDRAM) is a type of specialty
dynamic random-access memory
Dynamics (from Greek language, Greek δυναμικός ''dynamikos'' "powerful", from δύναμις ''dynamis'' "power (disambiguation), power") or dynamic may refer to:
Physics and engineering
* Dynamics (mechanics), the study of forces and t ...
(DRAM) with a
SRAM-like interface originally developed by
Infineon Technologies
Infineon Semiconductor solutions is the largest microcontroller manufacturer in the world, as well as Germany's largest semiconductor manufacturer. It is also the leading automotive semiconductor manufacturer globally. Infineon had roughly 58,0 ...
. It is a high-bandwidth, semi-commodity, moderately low-latency (relative to contemporaneous SRAMs) memory targeted at embedded applications (such as
computer networking
A computer network is a collection of communicating computers and other devices, such as printers and smart phones. In order to communicate, the computers and devices must be connected by wired media like copper cables, optical fibers, or b ...
equipment) requiring memories that have moderate costs and low latency (relative to commodity DRAM); and capacities greater than those offered by SRAMs.
[Jacob, Bruce et al. (2008). ''Memory Systems: Cache, DRAM, Disk''. Morgan Kaufmann Publishers. pp. 494.] RLDRAM also has better performance compared to contemporaneous commodity DRAMs when there are back-to-back read and write accesses, or completely random accesses.
The first generation RLDRAM devices appeared in 1999, and were initially only
fabricated by Infineon. Later,
Micron Technology
Micron Technology, Inc. is an American producer of computer memory and computer data storage including dynamic random-access memory, flash memory, and solid-state drives (SSDs). It is headquartered in Boise, Idaho. Micron's consumer produc ...
was brought in as a development partner and
second source
In the electronics industry, a second source is a company that is licensed to manufacture and sell components originally designed by another company (the first source).
It is common for engineers and purchasers to seek components that are availab ...
for RLDRAM devices.
The second-generation RLDRAM II specification was announced by Infineon and Micron in 2003.
Infineon subsequently decided to abandon RLDRAM development, and RLDRAM II devices were introduced by Micron.
The first RLDRAM II samples appeared in the same year.
In 2012, Micron demonstrated the first third-generation RLDRAM 3 devices.
Xilinx and Micron demo interoperability of FPGA and RLDRAM 3 memory interface standard
/ref>
References
{{DRAM
SDRAM