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【Complete set of materials】Multisim simulation design of traffic lights in digital electricity course【Multisim simulation + report】.Digital electricity-Multisim simulation design two-digit multiplier.When the hexadecimal system reaches 6, the hexadecimal counter is cleared to zero and starts counting again. When it reaches 9, the decimal counter outputs a signal to the hexadecimal number on the left, and the hexadecimal number starts counting. Once it reaches 9, it will be cleared and restarted. When you click Start, the decimal counter on the right starts counting. The function of the display of the value of the table of the decoder of the seven sections The seven-segment display decoder is composed of seven-segment digital tubes, a, b, c, d, e, f, and g each control a segment of luminous tubes Seven-segment display decoder implementation Signal, start a new round of counting, clear when the modulo 6 counter reaches 6, and modulo 6 counter selection Q B ， Q CThe terminal is used as the feedback terminal, and the CLR terminal is cleared by the NAND gate output control to form a 6-ary counting form.ģ. When the modulo 10 counter reaches 10, it is cleared, and at the same time, a modulo 6 counter is provided. The modulo 10 counter outputs a signal to the modulo 6 counter when it completes a cycle. The six-decimal counter is composed of a modulo 6 counter and a modulo 10 counter. (2) The working principle of six decimal counter The display is realized by a six-decimal counter circuit composed of a counter and a decoder. Working process: A 1kHz power supply outputs the second pulse signal, and then sends the second pulse signal to the counter for counting, and the accumulated counting result is displayed in numbers. The six-decimal counter is composed of three parts: counter, decoder and display. (1) Introduction and principle of six decimal counter The circuit consists of two 74160N counters, two 74LS47D seven-segment display decoders, a NAND gate and two digital displays Master the analysis and design methods of sequential logic circuits, as well as simulation test methods.