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一种具有饱和处理功能的24位并行乘加单元优化设计

张萌 贾俊波

东南大学学报(英文版)2006,Vol.22Issue(4):475-478,4.
东南大学学报(英文版)2006,Vol.22Issue(4):475-478,4.

一种具有饱和处理功能的24位并行乘加单元优化设计

Optimization design of 24 bit parallel MAC unit with saturation

张萌 1贾俊波1

作者信息

  • 1. 东南大学国家专用集成电路系统工程技术研究中心,南京,210096
  • 折叠

摘要

Abstract

An efficient design method for a 24×24 bit + 48 bit parallel saturating multiply-accumulate (MAC)unit is described. The augend in the MAC is merged as a partial product into Wallace tree array. The optimized saturation detection logic is proposed. The 679. 2 μm×132.5 μm area size has been achieved in 0.18 μm 1.8 V 1P6M CMOS technology by the full-custom circuit layout design. The simulation results show that the design way has significantly less area (about 23.52% reduction) and less delay than those of the common saturating MAC based on standard cell library.

关键词

乘加器/Booth编码/Wallace树/饱和检测/布局

Key words

multiply-accumulate/Booth encoding/Wallace tree/saturation detection/layout design

分类

信息技术与安全科学

引用本文复制引用

张萌,贾俊波..一种具有饱和处理功能的24位并行乘加单元优化设计[J].东南大学学报(英文版),2006,22(4):475-478,4.

基金项目

The National Natural Science Foundation of China (No. 90407009), the National High Technology Research and Development Program of China(863 Program) (No. 2003AA1Z1340). (No. 90407009)

东南大学学报(英文版)

1003-7985

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