M88DR5RCD01 (Gen1 DDR5 RCD)

Product Description

M88DR5RCD01 is a JEDEC-compliant Gen1 DDR5 Registering Clock Driver (RCD), supporting data rates up to 4800MT/s and VDD supply of 1.1V. It is a two-channel RCD designed for driving addresses and controlling nets between the host controller and the DDR5 SDRAMs. The RCD can be used independently as a central buffer on an RDIMM or used in conjunction with Gen1 DDR5 data buffers (DBs) on an LRDIMM to enable higher capacity and lower power consumption for memory systems.


Notes: Here shows the application of RCD on the DDR5 RDIMM as an example.


  • Fully compliant with JEDEC DDR5RCD01 specification
  • Speed up to 4800MT/s
  • 1.1V VDD and 1.0V VDDIO voltages
  • Two channel 1:2 registering buffer for address and control signals
  • Integrated PLL clock driver distributing one differential clock pair to five differential pairs per channel
  • Dual chip selects
  • Parity checking across CA and DPAR separately on two sub-channels
  • Output characteristics configurable through control registers
  • CA, CS and DFE training modes and Dual Frequency support
  • Sideband bus interface supporting I²C and I3C Basic modes
  • Power saving modes: PDE power down, Self refresh w/wo Clock Stop modes
  • Green package: 240-ball FCBGA



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