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Low-Energy Pipelined Multiple-Valued Current-Mode Circuit Based on Current-Level Control Technique

机译:基于电流水平控制技术的低能耗流水线多值电流模式电路

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A multiple-valued current-mode (MVCM) circuit with a current-level control technique is proposed for application to low-energy pipelined systems. The current-control block embedded in each pipeline stage automatically determines the minimum current bias that guarantees correct logic operations within a cycle time by using critical path replicas and minimizes the amount of current flow in the datapath block. The use of this current-level control technique enables the minimization of power dissipation while maintaining the operating frequency. The proposed circuit is applied to a pipelined MVCM multiplier, and its effectiveness is confirmed by carrying out an HSPICE simulation in 0.13um CMOS technology. In addition, the relationship between the current-level control granularity and the rate of performance improvement is confirmed. As compared to a conventional MVCM implementation, the MVCM multiplier with an 8-level current-control scheme achieves a power reduction of 65.1% at an operating frequency of 100 MHz and 26.5% at 500 MHz with an area overhead of 6.88%.
机译:提出了一种具有电流水平控制技术的多值电流模式(MVCM)电路,以应用于低能耗流水线系统。嵌入在每个流水线级中的电流控制模块通过使用关键路径副本自动确定最小电流偏置,该最小电流偏置保证在一个周期时间内进行正确的逻辑操作,并使数据路径模块中的电流量最小。使用这种电流水平控制技术可以在保持工作频率的同时将功耗降至最低。将该电路应用于流水线式MVCM乘法器,并通过在0.13um CMOS技术中进行HSPICE仿真来证实其有效性。另外,确认了当前级别的控制粒度与性能提高率之间的关系。与传统的MVCM实现相比,具有8级电流控制方案的MVCM乘法器在100 MHz的工作频率下可实现65.1%的功耗降低,在500 MHz的情况下可实现26.5%的功耗降低,而面积开销为6.88%。

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