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高速CMOS电路54HC/74HC系列是八十年代初开发的一种性能优异的集成电路.这种集成电路采用3.5μ硅栅工艺,其开关速度比标准铝栅CMOS电路CD4000系列提高一个数量级,与LSTTL基本相仿,比STTL和ALSTTL慢一倍左右.54HC/74HC系列具有铝栅标准CMOS电路低功耗的优点.静态功耗或低频下的动态功耗在微瓦以下.54HC/74HC系列电路的外引线排列和逻辑功能与同序号的54LS/74LS系列完全相同.此外,还有一些与CD4000系列同序号的电路,其外引线排列和逻辑功能与标准CMOS电路相同,但具有显著高的开关速度.
High-Speed CMOS Circuits The 54HC / 74HC Series is a high-performance integrated circuit developed in the early 1980s that uses a 3.5μ silicon gate technology with an order of magnitude faster switching speed than the CD4000 series of standard aluminum gate CMOS circuits, and LSTTL Basically similar to STTL and ALSTTL about twice as slow .54HC / 74HC series has the advantages of aluminum gate standard CMOS circuit low power consumption. Dynamic power consumption under static power or low frequency below the microwatts .54HC / 74HC series of circuits The pinout and logic functions are identical to the 54LS / 74LS family of identical serial numbers, with some of the same sequence numbers as the CD4000 series, with the same pinout and logic functions as the standard CMOS circuitry but with significantly higher switching speeds.