LS 表示 低功率蕭特基，低功率消耗執行速度更快！作者: manpower 時間: 2013-7-4 20:57:58
本帖最後由 manpower 於 2013-7-4 21:02 編輯
Schmitt-trigger buffered inputs at the enable/clock lines of the ’S373 and ’S374 devices simplify system design
as ac and dc noise rejection is improved by typically 400 mV due to the input hysteresis. A buffered
output-control (OC) input can be used to place the eight outputs in either a normal logic state (high or low logic
levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines
significantly.