XCKU115-2FLVB2104E 是 AMD Xilinx Kintex UltraScale 系列 FPGA,基于 20 nm 工艺制造,定位于"性价比/功耗比"极佳的中高端可编程逻辑器件。该系列旨在为 100 GbE 网络、数据中心、医学成像、8K × 4K 视频处理以及异构无线基础设施等场景提供高带宽 DSP 能力和低成本封装的最佳平衡。

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逻辑资源:
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系统逻辑单元(System Logic Cells):约 1,451,100 个,相当于 663,360 个 CLB LUT + 1,326,720 个 Flip-Flop;
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ALM(Adaptive Logic Module):82,920 个,每个 ALM 可配置为 LUT 或寄存器,提高资源利用效率;
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点评:与同节点器件相比,Kintex UltraScale 系列在逻辑密度上提供了极高的可定制性,适合大规模状态机和复杂运算。
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存储资源:
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分布式 RAM:18.3 Mbit,低延迟、分散分布于 CLB,适合小容量、多端口存储;
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块 RAM(BRAM):75.9 Mbit,由 2,160 个 36 Kb 块组成;
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点评:丰富的 BRAM 方便大规模缓存、FIFO 以及片上数据库实现,但需注意访问冲突与带宽分配。
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DSP & 算术加速:
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DSP48E2 切片:5,520 个,支持 27×18 位乘加、浮点和分数模式;
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点评:标准乘法性能高达 737 GMAC/s,适用高性能滤波和矩阵运算,但功耗密集,需要在设计中结合时钟门控优化。
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高速串行接口:
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GTH 收发器:64 路,16.3 Gb/s,支持 PCIe Gen3、SATA、10/25/40/100 GbE;
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时钟管理:24 个 MMCM/PLL,支持超低抖动输出;
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点评:多通道高带宽方案让它在数据中心互联中极具竞争力,但需精细抖动管理与信号完整性仿真。
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功耗与热设计
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典型核心功耗:约 12 W(空载),满载 DSP+IO 下可达 30~35 W;
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功耗优化功能:
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动态功率门控(power gating):空闲模块自动断电;
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多电源域设计:核心、收发器、辅助逻辑可独立调节;
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点评:20 nm 工艺虽成熟,但在高频、高密度应用中热耗仍是挑战,需要配合散热片与风冷/液冷方案。
封装与部署
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FCBGA-2104:47.5 mm × 47.5 mm,球间距 1 mm;
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MSL 等级:3,需在规定时间内回流焊;
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点评:大尺寸封装提高引脚数,但对PCB布局和电源网络设计要求极高,不适合低成本小尺寸方案。
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Kintex UltraScale 系列 FPGA 其他型号选型:
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XCKU9P-L1FFVE900I XCKU11P-L1FFVD900I XCKU060-1FFVA1517C
XCKU9P-2FFVE900I XCKU11P-2FFVE1517I XCKU060-1FFVA1156I
XCKU9P-2FFVE900E XCKU11P-2FFVE1517E XCKU060-1FFVA1156C
XCKU9P-1FFVE900I XCKU11P-2FFVE1517 XCKU060-1FFVA1156
XCKU9P-1FFVE900E XCKU11P-2FFVD900I XCKU040-L1FFVA1156I
XCKU5P-L2FFVB676E XCKU11P-2FFVD900E XCKU040-3FFVA1156E
XCKU5P-3FFVB676E XCKU11P-2FFVA1156I XCKU040-2SFVA784E
XCKU5P-2SFVB784I XCKU11P-2FFVA1156E XCKU040-2FFVA1156I
XCKU5P-2FFVD900I XCKU11P-1FFVA1156E XCKU040-2FFVA1156E
XCKU5P-2FFVB676I XCKU115-L1FLVA1517I XCKU040-2FBVA676I
XCKU5P-2FFVB676E XCKU115-2FLVF1924I XCKU040-2FBVA676E
XCKU5P-2FFVA676I XCKU115-2FLVF1924E XCKU040-1SFVA784C
XCKU5P-1SFVB784E XCKU115-2FLVD1924I XCKU040-1FFVA1156I
XCKU5P-1FFVD900I XCKU115-2FLVD1517I XCKU040-1FFVA1156C
XCKU5P-1FFVD900E XCKU115-2FLVB2104I XCKU040-1FBVA676I
XCKU5P-1FFVB676I XCKU115-2FLVB2104E XCKU035-2FFVA1156I
XCKU5P-1FFVB676E XCKU115-2FLVB1760I XCKU035-2FFVA1156E
XCKU5P-1FFVA676E XCKU115-2FLVB1760E XCKU035-2FBVA900I
XCKU3P-L2FFVB676E XCKU115-2FLVA1517I XCKU035-2FBVA900E
XCKU3P-L1FFVB676I XCKU115-2FLVA1517E XCKU035-2FBVA676I
XCKU3P-2FFVD900I XCKU115-2FLVA1517C XCKU035-2FBVA676E
XCKU3P-2FFVB676I XCKU115-1FLVF1924I XCKU035-1SFVA784C
XCKU3P-2FFVB676E XCKU115-1FLVB2104C XCKU035-1FFVA1156I
XCKU3P-2FFVA676I XCKU115-1FLVA1517I XCKU035-1FFVA1156C
XCKU3P-1SFVB784I XCKU115-1FLVA1517C XCKU035-1FBVA900C
XCKU3P-1SFVB784E XCKU095-2FFVB2104I XCKU035-1FBVA676I
XCKU3P-1FFVB676I XCKU095-2FFVB1760E XCKU035-1FBVA676C
XCKU3P-1FFVB676E XCKU095-2FFVA1156I XCKU025-2FFVA1156I
XCKU3P-1FFVA676E XCKU095-2FFVA1156E XCKU025-2FFVA1156E
XCKU15P-L2FFVE1517E XCKU095-1FFVC1517I XCKU025-1FFVA1156I
XCKU15P-L2FFVA1156E XCKU095-1FFVB1760C XCKU025-1FFVA1156C
XCKU15P-3FFVE1517E XCKU095-1FFVA1156I XCKU035‑1SFVA784C
XCKU15P-2FFVE1760I XCKU085-2FLVB1760I XCKU035‑1SFVA784I
XCKU15P-2FFVE1517I XCKU085-2FLVB1760E XCKU035‑2SFVA784I
XCKU15P-2FFVE1517E XCKU085-2FLVA1517I XCKU035‑2SFVA784C
XCKU15P-2FFVA1760E XCKU085-2FLVA1517E XCKU035‑3SFVA784E
XCKU15P-2FFVA1156I XCKU085-1FLVA1517I
XCKU15P-2FFVA1156E XCKU085-1FLVA1517C
XCKU15P-1FFVE1517I XCKU060-3FFVA1517E
XCKU15P-1FFVE1517E XCKU060-3FFVA1156E
XCKU15P-1FFVA1156I XCKU060-2FFVA1517I
XCKU15P-1FFVA1156E XCKU060-2FFVA1517E
XCKU13P-L1FFVE900I XCKU060-2FFVA1156I
XCKU13P-2FFVE900I XCKU060-2FFVA1156E
XCKU13P-2FFVE900E XCKU060-2FFVA1156
XCKU13P-1FFVE900E XCKU060-1FFVA1517I