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| 供应商 | Rambus |
|---|---|
| 型号 | Optimized for high bandwidth and low latency, the HBM2E PHY delivers maximum performance and flexibility in a compact form facto |
| 类型 | Hard IP |
| 到期日 | Available on request |
| 源网址 | View more |
| 特征 | Co-verified with available Rambus HBM2E controller Flexible delivery of IP core: works with ASIC/SoC layout requirements Speed bins: 0.5, 1.0, 1.5, 1.6, 1.8, 2.0, 2.4, 3.0, 3.2, 3.6 Gbps 8 channels and 16 pseudo-channels Support for stacks of 2, 4, 8 or 12 DRAM DFI 3.1 style interface for easy integration with memory controller Memory controller or PHY can be ASIC interface master (PHY independent mode) Selectable low-power operating states Programmable output impedance Pin programmable support for lane repair |
| 详情页 | View more |
| 附件链接 | View more |
Optimized for high bandwidth and low latency, the HBM2E PHY delivers maximum performance and flexibility in a compact form factor and power-efficient envelope. With the co-verified Rambus HBM2E Controller it comprises a complete HBM2E memory interface subsystem. HBM2E is a high-performance memory that features reduced power consumption and a small form factor. It combines 2.5D packaging with a wider interface at a lower clock speed (as compared to GDDR6) to deliver higher overall throughput at a higher bandwidth-per-watt efficiency for AI/ML and high-performance computing (HPC) applications. The Rambus HBM2E interface is fully compliant with the JEDEC JESD235B standard. It supports data rates up to 3.6 Gbps per data pin. The interface features 8 independent channels, each containing 128 bits for a total data width of 1024 bits. The resulting bandwidth is 461 GB/s per stack, with the stack consisting of 2, 4, 8 or 12 DRAMs. The interface is designed for a 2.5D system with an interposer used for routing signals between the 3D DRAM stack and the PHY on the SoC. This combination of signal density and stacked form factor requires special design consideration. In order to enable easy implementation and improved flexibility of design, Rambus performs complete signal and power integrity analysis on the entire 2.5D system to ensure that all signal, power and thermal requirements are met. The Rambus HBM2E controller supports both HBM2 and HBM2E devices with data rates of up to 3.6 Gbps per data pin. It supports all standard channel densities including 4, 6, 8, 12, 16 and 24 Gb. The controller maximizes memory bandwidth and minimizes latency via Look-Ahead command processing. The core is DFI compatible (with extensions added for HBM2E) and supports AXI, OCP or native interface to user logic. The HBM2E PHY and Rambus HBM2E controller used together comprise a complete HBM2E memory interface subsystem. Alternatively, these cores can be licensed separately to be paired with 3rd-party HBM2E controller or PHY solutions.
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