Based on RS filp flop,the logical function of Timer 555 is discussed. When provided a voltage over 2 Ucc /3 to high flip plop terminal of Timer 555,a voltage no more Ucc /3 to terminal of it,Basic RS flip flop is set 1.
英
美
- 從基本RS觸發(fā)器功能出發(fā) ,對 5 5 5定時(shí)器的邏輯功能進(jìn)行了討論 ,認為 5 5 5集成定時(shí)器高電平觸發(fā)端加小于 2Ucc/ 3的電平 ,低電平觸發(fā)端加小于Ucc/ 3的電平時(shí) ,觸發(fā)器置“1”
