開(kāi)關(guān)選擇24小時(shí)循環(huán)定時(shí)器芯片，定時(shí)模式多樣，睡眠功耗低，低至5ua以下。工作電壓范圍

寬，定時(shí)IC工作電壓2.4V-5.5V。有9種不同的循環(huán)定時(shí)模式。定時(shí)時(shí)間到自動(dòng)停止工作，自動(dòng)開(kāi)

始工作，使用方便，可設(shè)定時(shí)間為：

                                                                                2小時(shí)ON~ 22小時(shí)OFF

                                                                                4小時(shí)ON~ 4小時(shí)OFF

                                                                                4小時(shí)ON~ 20小時(shí)OFF

                                                                                6小時(shí)ON~ 6小時(shí)OFF

                                                                                6小時(shí)ON~ 18小時(shí)OFF

                                                                                8小時(shí)ON~ 8小時(shí)OFF

                                                                                8小時(shí)ON~ 16小時(shí)OFF

                                                                               10小時(shí)ON~ 14小時(shí)OFF

         定時(shí)IC芯片上電后，如果晶振不起振，芯片不能工作。時(shí)鐘振蕩采用32.768KHZ晶體振蕩，計(jì)

時(shí)精準(zhǔn)，無(wú)誤差。定時(shí)芯片用IO來(lái)選擇定時(shí)模式，當(dāng)某IO接通地時(shí)，工作為對(duì)應(yīng)的定時(shí)時(shí)間。