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M88DR4DB02P/M88NR4DB02P - Gen2 Plus DDR4 Data Buffer (DB)

M88DR4DB02P/M88NR4DB02P is a dual 4-bit bidirectional Data Buffer (DB) with differential strobes. The chip is compliant with JEDEC DDR4DB02 specification and can support speed up to DDR4-3200. Nine DBs are used in conjunction with one DDR4 Registering Clock Driver (RCD) on an LRDIMM to provide advanced memory solutions with high capacity, high speed and low power for the next generation of server platforms. In addition, M88NR4DB02P has a NVDIMM (Non-Volatile Dual In-line Memory Module) support feature, which provides a new level of functionality to the computer memory hierarchy, and allows the high-end data center servers to utilize persistent memory at DRAM speeds.


Compliant with JEDEC DDR4DB02 standard

Speed up to DDR4-3200

Optional NVDIMM support features (only for M88NR4DB02P)

Bidirectional retiming and 1:1 redriving of DDR4 data (DQ) signals

Regeneration of data strobe (DQS) signals from input clock

FIFOs on the DQ path for decoupling Host and DRAM interface time domains

Up to four package ranks supported

Package rank timing alignment supported on the Host interface

x4 DRAM devices supported

VDD voltage support: 1.2V

Parity error checking and sequence error checking on the BCOM interface

Different power saving modes such as CKE low power mode, CK stop mode, etc

Green package: Fine-pitch Ball Grid Array (FBGA)



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