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一种高精度8TSRAM存储阵列存内计算电路
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作者 韦雪明 周立昕 +3 位作者 尹仁川 许仕海 蒋丽 李建华 《桂林电子科技大学学报》 2023年第6期465-472,共8页
为解决传统“冯·诺依曼”架构功耗墙瓶颈,提升人工智能应用中点乘求和计算能效,设计了一种基于8T静态随机存储器阵列的存内计算电路,可有效解决“内存墙”问题。通过对存储单元的偏置电压设计来稳定充放电电流,可改善位线放电线性... 为解决传统“冯·诺依曼”架构功耗墙瓶颈,提升人工智能应用中点乘求和计算能效,设计了一种基于8T静态随机存储器阵列的存内计算电路,可有效解决“内存墙”问题。通过对存储单元的偏置电压设计来稳定充放电电流,可改善位线放电线性度,提高计算准确性。同时,在保证放电电流相同的前提条件下,减少了模数转换器(ADC)阈值编码,存储阵列的面积明显减小。电路基于65 nm CMOS工艺设计,通过8×72存储阵列的并行计算结构完成了64 Byte二进制点乘累加计算功能。仿真结果表明,在3位ADC输出、8 bit比较输出模式下,使用0.8、1.2 V的核心电源电压和250 MHz的时钟频率,可达到每比特1.69 GOPS/W的计算能效。与理论值基线相比,计算输出的平均计算偏差最大为1.05%,有效提高了计算准确率,并减小了电路面积。 展开更多
关键词 存内计算 CMOS 8t sram 点乘累加计算 高线性度
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一种用于提高读写操作的新型8管SRAM单元设计
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作者 李颂 孟坚 《电脑知识与技术》 2015年第6期254-256,共3页
随着MOS制造工艺的不断发展,晶体管的特征尺寸越来越小,SRAM存储单元对制造工艺的要求也越来越高,功耗问题也越来越突出,该文设计的新型8管采用单个位线来进行读写操作,在两个交叉耦合的反相器之间加入PMOS晶体管来提高写能力。仿真的... 随着MOS制造工艺的不断发展,晶体管的特征尺寸越来越小,SRAM存储单元对制造工艺的要求也越来越高,功耗问题也越来越突出,该文设计的新型8管采用单个位线来进行读写操作,在两个交叉耦合的反相器之间加入PMOS晶体管来提高写能力。仿真的结果表明:与传统6管和7管相比,这种8管呈现出更好的读噪声容限、写裕度和保持存储数据的能力。 展开更多
关键词 新型8管 单个位线读写 静态噪声容限 保持噪声容限
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Design and Implement of Low Power Consumption SRAM Based on Single Port Sense Amplifier in 65 nm
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作者 Shunrui Li Jianjun Chen +2 位作者 Zuocheng Xing Jinjin Shao Xi Peng 《Journal of Computer and Communications》 2015年第11期164-168,共5页
With the rapid development of integrated circuits [1], low power consumption has become a constant pursuiting goal of the designer in chip design. As the memory almost takes up the area of the chip, reducing memory po... With the rapid development of integrated circuits [1], low power consumption has become a constant pursuiting goal of the designer in chip design. As the memory almost takes up the area of the chip, reducing memory power consumption will significantly reduce the overall power consumption of the chip;according to ISSCC’s 2014 report about technology trends discussions, there two points of the super-low power SRAM design: 1) design a more effective static and dynamic power control circuit for each key module of SRAM;2) ensure that in the case of the very low VDD min, SRAM can operating reliably and stably. This paper makes full use reliable of 8T cell, and the single-port sense amplifier has solved problems in the traditional 8T cell structure, making the new structure of the memory at a greater depth still maintain good performance and lower power consumption. Compared with the designed SRAM the SRAM generated by commercial compiler, as the performance loss at SS corner does not exceed 10%, the whole power consumption could be reduced by 54.2%, which can achieve a very good effect of low-power design. 展开更多
关键词 Single PORT SENSE AMPLIFIER sram DESIGN Low Power DESIGN 8t sram
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