按照传统的观念，低功耗系统设计只是便携式电子系统中考虑的问题。而今已成为现代电子系统的普遍追求。这是因为低功耗是绿色电子的基本要求；高功耗是电子系统便携化趋势的主要障碍；低功耗系统具有可观的可靠性效益，而现代电子系统的普遍CMOS化又为低功耗设计提供了光明的? According to the traditional concept, low-power system design is only considered in portable electronic systems. Now it has become a common pursuit of modern electronic systems. This is because low power consumption is a basic requirement for green electronics; high power consumption is a major obstacle to the trend toward portability of electronic systems; low power systems have considerable reliability benefits while the prevalence of CMOS in modern electronic systems is low power Design provides a bright?