ZHCSO59D August 1997 – May 2021 CD54HC21 , CD74HC21
PRODUCTION DATA
請參考 PDF 數據表獲取器件具體的封裝圖。
In this application, this device is used to directly control the RESET pin of a motor controller. The controller requires four input signals to all be HIGH before being enabled, and should be disabled in the event that any one signal goes LOW. The 4-input AND gate function combines the four individual reset signals into a single active-low reset signal.