你可以使用一个4060B二进制计数器/振荡器制成一个简单而又准确的长迟延定时器(如图1)。该图所示的电路能够比普遍集成电路定时器提供更长的迟延时间,一般从几毫秒到数小时。输入端的正逻辑电平将计数器置于复位状态,输出端的正逻辑电平将计数器置于低度状态。当输入 You can use a 4060B binary counter / oscillator to make a simple and accurate long delay timer (Figure 1). The circuit shown in this figure can provide longer latency than universal integrated circuit timers, typically from a few milliseconds to hours. The positive logic level at the input places the counter in reset and the positive logic level in the output places the counter low. When input