Overview

The RG5R188 (MRCD) is a registering clock driver used on MCR DIMMs. It's primary function is to buffer the Command/Address (CA) bus, chip selects, and clock between the host controller and the DRAMs. It also creates a BCOM bus which control the data buffers.

RG5R188 - Block Diagram
RG5R188 - Ball Configuration
RG5R188 - Ball Assignment
RG5R188 - Block Diagram
RG5R188 - Ball Configuration
RG5R188 - Ball Assignment
  • MCR DIMM server speeds up to 8800MT/s
  • Supports power-down modes to conserve server power
  • Supports 1 rank per Pseudo-channel in x4 mode and 2 ranks per Pseudo-channel in x8 mode
  • Supports SDP, DDP, 3DS DRAM types
  • Provides access to internal control words for configuring device features and adapting to different system applications
  • I3C sideband access for asynchronous register access control
  • BCOM data buffer control
  • Loopback and pass-through modes
  • Package: 8.7 × 13.5 mm, 240-FCBGA

Applications

  • MCR DIMM modules for Enterprise Servers

Design & Development

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

Explore ECAD Models
Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Lead Count (#)
    Temp. Grade
    Pb (Lead) Free
    Carrier Type
    Moisture Sensitivity Level (MSL)
    Buy / Sample
    Part Number
    RG5R188A1AIGBY#BC0
    fast_forwardPreview
    memory
    view_in_ar
    Samples Available
    		 FCCSP 240 C Yes Tray 3 Get Samples,
    RG5R188A1AIGBY#HC0
    fast_forwardPreview
    memory
    view_in_ar
    Samples Available
    		 FCCSP 240 C Yes Reel 3 Get Samples,
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