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LED电子钟不仅显示清晰、美观,而且价格低,功能多,安装方便。若将其组装在测流计数装置中,在测流时可作秒表,既能显示测速历时,又可作定时控制。这种电子钟主要由一块大规模集成电路(IC_1)和一块数字显示屏组成。我们用的集成电路是LM8361,为PMOS电路,与CMOS电路共用一组电源,因而在仪器中采用电源负极接地。显示屏型号为FR1094-11T。IC_1的各引出脚功能见图1,显示屏外型及数字发光段排列见图2,其引线与数字发光段对照见附表。
LED electronic clock not only shows clear, beautiful, but low prices, multi-function, easy to install. If it is assembled in the flow counting device, it can be used as a stopwatch in the flow measurement, which can not only display the measurement duration, but also make the timing control. The clock consists mainly of a large scale integrated circuit (IC_1) and a digital display. The integrated circuit that we use is LM8361, it is PMOS circuit, share a group of power with CMOS circuit, therefore adopt the negative pole of the power to gnd in the apparatus. The display model is FR1094-11T. The pinout of IC_1 is shown in Figure 1. The appearance of the display and the arrangement of the digital LED segments are shown in Figure 2, and the leads and digital LED segments are shown in the attached table.