模拟石英钟电路(E1444YA)是一块用在指针式石英钟上的大规模CMOS集成电路,采用8脚双列直插式封装.它的典型应用电路如图1所示图中集成电路由1.5V电池供电,⑦脚和⑧脚之间接32768Hz的石英晶振,它与集成电路内两级倒相器构成基准频率振荡器.在集成电路内部经过16级分频器,在③脚和⑤脚分别输出周期为2秒,两者之差为1秒的负脉冲,两脚对地输出波形如附图2所示 The analog quartz clock circuit (E1444YA) is a large-scale CMOS integrated circuit used in an analog quartz clock with an 8-pin dual in-line package, and its typical application circuit is shown in Figure 1. The integrated circuit is powered by a 1.5V battery , ⑦ feet and ⑧ feet followed by 32768Hz quartz crystal oscillator with the integrated circuit within the two inverters form the reference frequency oscillator inside the integrated circuit after 16 divider, ③ feet and ⑤ pin, respectively, the output cycle is 2 seconds, the difference between the two negative pulses for 1 second, two feet to the ground output waveform shown in Figure 2