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基于可重构低功耗处理的高速乘法器设计OA

A high-speed multiplier based on reconfigurable low-power processing

中文摘要英文摘要

针对传统radix-4 Booth编码乘法器所导致的高延迟和高功耗,设计并实现了一种改进型radix-4 Booth编码的低功耗高速乘法器.该乘法器采用改进型radix-4 Booth编码,通过超前置零编码模块改善了原有编码带来的功耗损失,并采用预处理方法增加扩展符号位,减小关键路径延迟;通过优化生成规则部分积阵列,减少压缩器数量;通过改进压缩器结构和可重构压缩设计缩短关键路径长度,降低压缩树整体功耗.所设计的乘法器采用180 nm 工艺完成设计,通过Design Compiler进行综合,采用该结构32位乘法器关键路径延迟为6.73 ns,电路面积为116 736 μm2,通过随机产生5 000组随机数得到整体功耗为13 838 μW.

To address the issues of high latency and high-power consumption associated with tradi-tional radix-4 Booth-encoded multipliers,this paper introduces the implementation of a low-power,high-speed multiplier based on an improved Booth encoding scheme.The multiplier employs an im-proved radix-4 Booth encoding method and utilizes an advance zero encoding module to mitigate power losses caused by conventional encoding.Additionally,a preprocessing approach is adopted to increase extension sign bits,thereby reducing critical path delay.By optimizing the generation rules for the par-tial product array,the number of compressors is reduced.Furthermore,through enhancements to the compressor structure and the adoption of a reconfigurable compression design,the critical path is short-ened,leading to a reduction in overall power consumption of the compression tree.The designed multi-plier is implemented using 180 nm process and synthesized with Design Compiler.For a 32-bit multiplier employing this architecture,the critical path delay is 6.73 ns,the circuit area is 116 736 μm2,and the overall power consumption,obtained through random generation of 5 000 sets of random numbers,is 13 838 μW.

陈一凡;杨宇恒;姜岩峰;蔡孟冶

江南大学集成电路学院,江苏 无锡 214122北京鸿翼芯汽车电子科技有限公司,北京 100191江南大学集成电路学院,江苏 无锡 214122江南大学集成电路学院,江苏 无锡 214122

信息技术与安全科学

Booth编码低功耗设计可重构设计

Booth encodinglow-power designreconfigurable design

《计算机工程与科学》 2026 (4)

608-616,9

国家重点研发计划(2024YFB4505405)

10.3969/j.issn.1007-130X.2026.04.005

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