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微处理器的进展微处理器问世以来,已经历十几年了。当前,微处理器系统被用在一切领域,其用途日益广泛。随着半导体技术的进展,微处理器也向多功能、高性能方面迈进,随之出现的从一次能够处理8位数据的8位微处理器到16位微处理器乃至32位微处理器。另外,由于微处理器系统的不断扩大,系统的功耗及散热则是系统设计上的主要焦点,当前迫切希望实现低功耗。典型低功耗器件有CMOS器件,以前,CMOS器件虽然实现了低功耗,但它有速度慢的缺点,一般,高速器件还是采用NMOS器件。随着半导体技术的进展,CMOS器件已达到了和NMOS器件相同的速度。
Microprocessors Progress Microprocessors have been around for more than a decade. Currently, microprocessor systems are used in all fields and their use is becoming more widespread. As semiconductor technology advances, microprocessors move toward multifunctionality and high performance, starting with 8-bit microprocessors capable of handling 8-bit data, up to 16-bit microprocessors and even 32-bit microprocessors. In addition, due to the continuous expansion of microprocessor systems, system power consumption and heat dissipation are the main focuses of system design. There is an urgent need to achieve low power consumption. Typical low-power devices have CMOS devices. In the past, although CMOS devices achieved low power consumption, they had the disadvantage of slow speed. Generally, high-speed devices use NMOS devices. As semiconductor technology advances, CMOS devices have reached the same speed as NMOS devices.