论文部分内容阅读
在数字设备中,计数器是最经常使用的,在仪器仪表、计算机外部设备的控制装置上尤其如此.本文介绍使用最广的T210十进计数器的各种用途,以供读者应用时参考.T210十进计数器相当于美国TI公司的SN7490和日本三菱公司的M53290P.它由4个主从触发器组成,在内部连成一个2分频计数器和一个5分频计数器,封在一个双列直插式管壳中,它的真值表如表1所示.
In digital devices, the counter is the most commonly used, in instrumentation, computer peripherals control device especially.This article describes the most widely used variety of T210 decimal counter for readers reference .T210 ten Into the counter equivalent to the United States TI’s SN7490 and Japan’s Mitsubishi M53290P. It consists of four master-slave flip-flop, internally connected into a divide-by-2 counter and a divide-by-5 counter, sealed in a dual in-line Tube shell, its truth table in Table 1 below.