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CDT3345 Datasheet(PDF) 7 Page - BOWIN ELECTRONIC CO. |
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CDT3345 Datasheet(HTML) 7 Page - BOWIN ELECTRONIC CO. |
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7 / 11 page ![]() CDT-3345 --- 7 CDT3345 P. 7 四段輸入倒時定時器 IC (b). 時間由 ZC 決定(ACS = 1) : (AC 使用) 說 明 1. 使用 Rosc 時 – 可使用於 AC50/60Hz -- BZ 有聲, LED 會閃 2. 不接 Rosc 時 – 只可使用於 AC60Hz -- BZ 不會響, LED 不會閃 3. ACS PIN 接到 VDD 4. 使用 AC 時可推 TRIAC,須接振盪電阻 Rosc 時才可使用 VSS BZ1 OSCO ZC OUT1 BZ2 VDD K1 K2 K3 K4 LED LEVEL HOLD 560K OSCI OUT3 HIGH CDS CDS OUT2 LOW ACS Buzzer CDT3345 TSA TSB AC50/60Hz ※ ※ Rosc TRIAC OUT3 load Triac 473 10K 5. 使用 Triac 時: 線路參考用 |
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