Product Description
M88DR4DB02P/M88NR4DB02P is a Gen2 Plus DDR4 Data Buffer (DB), which is compliant with the JEDEC DDR4DB02 specification and supports data rates up to DDR4-3200. The DBs can be used in conjunction with Montage’s Gen2 Plus DDR4 RCD (M88DR4RCD02P) for LRDIMM and NVDIMM (Non-Volatile Dual In-line Memory Module) applications, that is, 1 * RCD + 9 * M88DR4DB02P used for one LRDIMM, or 1 * RCD + 9 * M88NR4DB02P used for one NVDIMM.
Notes: Here shows the application of DB on the DDR4 LRDIMM as an example.
Feature
- 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)
Application
- M88DR4DB02P for DDR4 LRDIMM
- M88NR4DB02P for DDR4 NVDIMM