欢迎来到天天文库
浏览记录
ID:61005266
大小:476.50 KB
页数:17页
时间:2021-01-19
《CAD课程设计-数字电子钟的设计与制作.doc》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、摘要:爵布囡豚装胧击鏖成褪屺馇址设计一个周期为24小时,显示满刻度为23时59分59秒,具有校时功能和报时功能的电子钟。本系统的设计电路由时钟译码显示电路模块、脉冲逻辑电路模块、时钟脉冲模块、电源模块、整电报时模块、校时模块等部分组成。为了用电池作电源,采用低功耗的CMOS芯片及液晶显示器,计数器采用同步双十进制计数器CC4518,锁存译码器是CC4543,发生器使用计数振荡器CC4060及双D触发器CC4013,整电报时电路用CD4082,CD4011及扬声器构成。呻髋讠掼夕双涸檗束霈蠡沐喹驻止拐羹
2、炊裳忽删蛲匠惺肾南目录:页次苷泯墒傩懵谥叛饲蔡婷驰团蕊摘要...........................................................................................................................1啉洞笳财篚苞莰拾元讲莲垩了目录.....................................................................................
3、......................................1锈八舀焘渌阅袖噜畏砟掣镅渴图表目录....................................................................................................................2无老铹父桩砚辊葵虐颁锞魔晕一、设计概述.............................................................
4、..............................................3柬曼蚧攀翰替泓八艽末谏庠萱1.1设计目标.....................................................................................................3判俎诤跗肌帅彦孩靴哌歉嗽宀1.2功能特性................................................................
5、.....................................3蜜躇南含美舰讣垓苋甾惩坛际1.3原理框图.....................................................................................................3彷惜穗坼囹拆软芑拖蠢邹句钼二、设计原理..........................................................................
6、.................................3择礻楗棍酽噗偬朴农企懵虬靼三、设计步骤...........................................................................................................4娆朽钾淝布耢脞抑楼舨逭馁抑3.1计数器电路.......................................................................
7、..........................4膀诡眩狗迨栗竹贯醭湓六熘痛3.2译码和数码显示电路.................................................................................5钔以光褡蛎展萜蛤芋粝泼稿猜3.3振荡器电路.................................................................................................6
8、坞溽盲螵蛙庶铄茑轼泯挠浸迁3.4校时电路.....................................................................................................7伯赉雕邾蒌镦颟氖惭雷弹呙蚱3.5整点报时电路.....................................................................................
此文档下载收益归作者所有