Development of High-speed and Large-capacity 2U MRDIMM: First-ever MRDIMM with Dual PMICs

Continuous increase in the demand for high-speed and large-capacity memory modules is being intensified by the development of numerous memory-intensive applications. In order to fulfill these demands, Multiplexed Rank Dual In-line Memory Module (MRDIMM) has been newly proposed in JEDEC, with its main objective being doubling of the data bandwidth without having to overcome the physical limitations in DRAM scaling. In this paper, we introduce the design concept of 2U MRDIMM that can fulfill both speed and capacity needs of various memory-intensive applications. The proposed concepts have been verified through a series of signal and power simulations, as well as Proof of Concept (PoC)-based measurements.