KP1878BE1 |
Part Number | KP1878BE1 |
Manufacturer | ETC |
Description | ® ÊÐ1878ÂÅ1 ÑÏÅÖÈÔÈÊÀ ÏÎÄÊËÞ×ÅÍÈß ÌÈÊÐÎÊÎÍÒÐÎËËÅÐÀ ÂÊËÞ×ÅÍÈÅ ÏÈÒÀÍÈß È ÏÓÑÊ ÌÈÊÐÎÊÎÍÒÐÎËËÅÐÀ Äëÿ óïðàâëåíèÿ ïóñêîì ìèêðîêîíòðîëëåðà èñïîëüçóåòñÿ âíåøíèé âûâîä óñòàíîâêè è ïðîãðàììèðîâàíèÿ RST. Åñëè ... |
Features |
èè ìèêðîêîíòðîëëåðà. Íåîáõîäèìî ñíèìàòü ñèãíàë RST (âûñîêèé óðîâåíü íà ýòîì âûâîäå) â òîò ìîìåíò, êîãäà ïèòàíèå ìèêðîêîíòðîëëåðà UCC èìååò óðîâåíü íå ìåíåå 3,5 V.
Ucc D C R1 R2
KP1878BE1
RST
R1 = 40 kOm ðåçèñòîð, çàäàþùèé âûñîêèé óðîâåíü íà âûâîäå RST. R2 = 100 Om ¸ 1 kOm ðåçèñòîð, îãðàíè÷èâàþùèé òîê, ïðîòåêàþùèé ÷åðåç âûâîä RST. Ñ êîíäåíñàòîð, çàäàþùèé çàäåðæêó ôîðìèðîâàíèÿ âûñîêîãî óðîâíÿ íà âûâîäå RST. D äèîä, îáåñïå÷èâàþùèé áûñòðûé ðàçðÿä êîíäåíñàòîðà C ïðè ñíÿòèè íàïðÿæåíèÿ ïèòàíèÿ. Ðèñ. 15. Ñõåìà ïîäêëþ÷åíèÿ äëÿ âûðàáîòêè ñèãíàëà RST Ïî âêëþ÷åíèè ïèòàíèÿ ðåãèñòðû ìèêðîêîíòðîëë... |
Document |
KP1878BE1 Data Sheet
PDF 108.38KB |
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