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
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