八路搶答器職業(yè)學(xué)院應(yīng)用電子技術(shù)畢業(yè)論文

1、編號：山西信息職業(yè)技術(shù)學(xué)院畢業(yè)論文(設(shè)計)題名 題名: 八位數(shù)字搶答器 八位數(shù)字搶答器姓名 姓名:白琳 白琳論文指導(dǎo)教師 楊敏利學(xué)生所在系部 信息工程系 專 業(yè) 名 稱 應(yīng)用電子技術(shù)論文提交日期 2012 年 3 月 日 論文答辯日期 2012 年 3 月 日2012 年 3 月 日山西信息職業(yè)技術(shù)學(xué)院畢業(yè)論文AbstractIntroduces a kind of commonly used with 74 series IC des

2、ign of digital display iscomposed of zhuhai circuit responder, design concept, function. This contest is a basicvies except function outside, still have timing, timing and alarm function. Host throughtime for vies preset

3、 switch preset time, the system will complete automatic countdown. Ifthe stipulated time someone contest, is timing will automatically stop, vies to answer firstcircuit digital tube demonstrated contestant Numbers. Buzze

4、r happen alarm, diodeluminescence, settle is circuit display countdown time. If the stipulated time no contest, issurely circuit, and system of display 00 buzzer will send ring, tip host this contest null andvoid, realiz

5、e alarm function. NI Multisim software combines the intuitive capture andpowerful simulation, can quickly, easily and effectively to circuit design and verified. Thisdesign is the use of the circuit drawing Multisim soft