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概览

描述

The RRG5004 (Gen 4 RCD) is a registering clock driver used on DDR5 RDIMMs. It supports DDR5 server speeds up to 7200 MT/s. Its primary function is to buffer the Command Address (CA) bus, chip selects, and clock between the host controller and the DRAMs. 

  • Dual-Channel Design: Operates independently with shared common logic such as clocking, enhancing performance and reliability.
  • High-Speed Support: Achieves speeds up to 7200 MT/s, catering to the demands of modern server environments.
  • Versatile Compatibility: Supports both x4 and x8 DRAM configurations, providing flexibility for various applications.
  • I3C Bus Interface: Facilitates sideband communication with the CPU or motherboard Baseboard Management Controller (BMC), ensuring smooth operations and management.
  • Efficient Data Handling: Each channel features a 7-bit double data rate CA bus input, single parity input, two chip-select inputs, and produces two copies of 14-bit single data rate CA bus outputs and chip-select outputs.
  • Integrated Clock Management: Common clock input and PLL with separate clock outputs for each DRAM channel, optimizing synchronization and performance.

特性

  • This RCD enhances the performance and reliability of memory modules by ensuring precise timing and signal integrity. Renesas RCD RRG5004 is validated by all major memory vendors.
  • Compliant with JEDEC DDR5RCD04 specification
  • Pinout optimized for DDR5 RDIMM PCB layout
  • DDR5 server speeds up to 7200MT/s
  • Supports power-down modes to conserve server power
  • Supports 1-rank/2-rank DIMM configurations
  • Supports single die package (SDP), dual die package (DDP), and 3D stacking DRAM types
  • Provides access to internal control words for configuring device features and adapting to different RDIMM system applications
  • I2C and I3C sideband access for asynchronous register access control
  • Loopback and pass-through modes
  • Package: 8.7 × 13.5 mm, 240-FCBGA

产品对比

应用

文档

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数据手册 - 精简版 PDF 107 KB
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设计和开发

模型

ECAD 模块

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Diagram of ECAD Models

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