共查询到20条相似文献,搜索用时 93 毫秒
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提出了几种分别采用两个锁存器和单个锁存器的三值双边沿触发器设计方案,这些方案包括动态、半静态和静态结构。双锁存器三值双边沿触发器是通过将两个透明的三值闩锁并列构成的。单个锁存器的三值双边沿触发器设计是通过时钟信号的上升沿及下降沿后分别产生的窄脉冲使锁存器瞬时导通完成取样求值。三值双边沿触发器具有对时钟信号的两个跳变均敏感的特点,因此可以抑制时钟信号的冗余跳变。较之三值单边沿触发器,在保持相同数据吞吐量的条件下,采用三值双边沿触发器可使时钟信号的频率减半,从而降低系统功耗。最后给出了采用0.25μm CMOS工艺参数的HSPICE模拟结果及其功耗比较。 相似文献
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根据在保持电路原有性能的前提下可通过降低时钟频率来降低系统功耗的原理和双边沿触发器的设计思想,本文将多值信号信息量大的优点应用于时钟网络上设计了基于三值时钟的四边沿触发器,消除了三值时钟的冗余跳变,从而通过降低时钟频率的方式达到降低功耗的目的。本文设计的四边沿触发器电路结构简单,既可以用于二值时序电路中也可以用于多值时序电路中。模拟结果表明,本文设计的四边沿触发器具有正确的逻辑功能且能有效地降低系统功耗。 相似文献
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电流型CMOS脉冲D触发器设计 总被引:1,自引:0,他引:1
该文根据脉冲触发器的设计要求,结合阈算术代数系统,提出一种电流型CMOS脉冲D触发器的通用结构,用于二值及多值电流型CMOS脉冲触发器的设计,并可方便地应用于单边沿和双边沿触发。在此结构的基础上设计了电流型CMOS二值、三值以及四值脉冲D触发器。采用TSMC 180 nm CMOS工艺参数对所设计的电路进行HSPICE模拟后表明所设计的电路具有正确的逻辑功能和良好的瞬态特性,且较以往文献提出的电流型D触发器,优化了触发器的建立时间和保持时间,二值和四值触发器最差最小D-Q延时比相关文献的主从触发器降低了59.67%和54.99%,比相关文献的边沿触发器降低了4.62%以上,所用晶体管数也相对减少,具有更简单的结构以及更高的电路性能。 相似文献
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分析了三模冗余(TMR)型D触发器和双互锁存储单元(DICE)型D触发器各自的优点和缺点,基于三模冗余和双互锁存储单元技术的(TMRDICE)相融合方法,设计实现了基于双互锁存储单元技术的三模冗余D触发器。从电路级研究了TMRDICE型D触发器抗单粒子翻转的性能,与其他传统类型电路结构的D触发器进行了抗单粒子翻转性能比较,并通过电路仿真和辐照实验进行了验证。仿真结果表明,TMRDICE型D触发器的抗单粒子翻转性能明显优于传统的普通D触发器、TMR型D触发器和DICE型D触发器。辐照实验结果表明,TMRDICE型D触发器具有最小的翻转截面。 相似文献
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对基于模代数的三值触发器的研究 总被引:9,自引:0,他引:9
本文用模代数讨论三值触发器。提出了基于模代数的三值 JK 触发器。与基于 Post代数的三值 JK 触发器相比,它的逻辑功能是均衡的,它能像二值 JK 触发器一样方便地构成另外二种常用的触发器:三值 D 型触发器与三值 T 型触发器。此外,由时序电路的设计实例,也证实了因它的功能较强而能导致较简单的激励函数与组合电路。 相似文献
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构建的两种适用于谐振时钟的CMOS触发器结构:SAER(Sense Amplifier Energy Recovery)和SDER(Static Differential Energy Recovery),克服了传统触发器在谐振时钟触发下短路功耗大的问题,适用于对时钟网络实现能量回收与节省的系统.在SMIC 0.13 μm工艺下进行功耗和时序参数仿真,对比应用在同样谐振时钟下的传统主从结构触发器MSDFF(Master-Slave D Flip-flop)和高性能触发器HLFF(Hybrid Latch Flip-flop),SAER在测试的频率范围内保证高性能时序参数的同时,实现了三分之一以上的功耗节省. 相似文献
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Weiming Zhang Shuozhong Wang Xinpeng Zhang 《Communications Letters, IEEE》2007,11(8):680-682
In image steganography, each pixel can carry a ternary message by choosing adding/subtracting one to/from the gray value. Although ternary covering functions can provide embedding efficiency higher than binary ones, it is necessary to convert the binary message into a ternary format. We propose a novel method that improves the embedding efficiency of binary covering functions by fully exploiting the information contained in the choice of addition or subtraction in the embedding. The improved scheme can perform equally well with, or even outperform, ternary covering functions without ternary conversion of the message. 相似文献
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本文根据基于模代数的各种三值触发器的次态方程,提出用U_k通用门实现各种三值触发器。在此基础上,利用U_k门阵列实现三值时序电路。 相似文献
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According to the next-state equations of various ternary flip-flops(tri-flop),whichare based upon ternary modular algebra,various ternary flip-flops are implemented by usinguniversal-logic-modules,U_hs.Based on it,ternary sequential circuits are implemented by usingarray of universal-logic-modules,U_hs. 相似文献
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本文根据基于模代数的各种三值触发器的次态方程,提出用Uh通用门实现各种三值触发器。在此基础上,利用Uh门阵列实现三值时序电路。 相似文献
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According to the next-state equations of various ternary flip-flops (tri-flop), which are based upon ternary modular algebra,
various ternary flip-flops are implemented by using universal-logic-modules,U
hs. Based on it ternary sequential circuits are implemented by using array of universal-logic-modules,U
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Supported by the National Natural Science Foundation of Zhejiang Province, China. 相似文献
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Sepehr Tabrizchi Hojjat Sharifi Fazel Sharifi Keivan Navi 《Circuits, Systems, and Signal Processing》2016,35(9):3310-3322
Using multiple-valued logic provides more information transmission over a signal line. So it could solve the binary logic circuits problems such as interconnections requirement. In this paper, a universal method for designing ternary 3-2 and 4-2 compressor cells based on carbon nanotube field-effect transistors (CNTFETs) is presented. The proposed circuits use unique properties of CNTFETs, such as adjustable threshold voltage by changing CNT diameter and ballistic carrier transportation. In both designs transmission gates, ternary decoder and standard ternary buffers with different threshold voltages are used. The proposed compressors receive three (for 3-2 compressor) or four (for 4-2 compressor) ternary digits, produce the summation of these digits and show the results in two ternary digits (Sum, Carry). For evaluation and simulation the proposed circuits, Synopsys HSPICE simulator with 32 nm compact model is used in different simulation conditions. 相似文献
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By researching the ternary counter and low power circuit design method, a novel design of low power ternary Domino counter on switch-level is proposed. Firstly, the switch-level structure expression of ternary loop operation circuit with enable pin is derived according to the switch-signal theory, and the one bit ternary counter is obtained combining the ternary adiabatic Domino literal operation circuit and buffer. Then the switch-level structure expression of enable signal circuit is derived, and the four bits ternary counter is obtained by cascade connection. Finally, the circuit is simulated by Spice tool and the output waveforms transform in proper order indicating that the logic function is correct. The energy consumption of the four bits ternary adiabatic Domino counter is 63% less than the conventional Domino counterpart. 相似文献
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通过对碳纳米管场效应晶体管(Carbon Nanotube Field Effect Transistor,CNFET)和物理不可克隆函(Physical Unclonable Functions,PUF)电路的研究,提出一种高性能三值SRAM-PUF电路结构.该电路结构首先利用交叉耦合三值反相器产生随机电流,并对其电流进行失配分析;然后结合三值SRAM单元的电流竞争得到随机的、不可克隆的三值输出信号"0"、"1"和"2".在32nm CNFET标准模型库下,采用HSPICE对所设计的三值SRAM-PUF电路进行Monte Carlo仿真,分析其随机性、唯一性等性能.模拟结果表明所设计的三值SRAM-PUF电路归一化随机性偏差和唯一性偏差均为0.03%,且与传统二值CMOS设计的PUF电路相比工作速度提高33%,激励响应对数量为原来的(1.5)n倍. 相似文献