求人用555逻辑器件做个计时器！！！！
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5\u811a\u7ecf0.01uF\u7535\u5bb9\u63a5\u5730\uff0c\u6bd4\u8f83\u5668C1\u548cC2\u7684\u6bd4\u8f83\u7535\u538b\u4e3a\uff1aUR1=2/3VCC\u3001UR2=1/3VCC\u3002
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NE555\u65f6\u57fa\u7535\u8def\u5c01\u5f62\u5f0f\u6709\u4e24\u79cd\uff0c\u4e00\u662fDIP\u53cc\u5217\u76f4\u63d28\u811a\u5c01\u88c5\uff0c\u53e6\u4e00\u79cd\u662fSOP-8\u5c0f\u578b\uff08SMD\uff09\u5c01\u88c5\u5f62\u5f0f\u3002\u5176\u4ed6HA17555\u3001LM555\u3001CA555\u5206\u5c5e\u4e0d\u540c\u7684\u516c\u53f8\u751f\u4ea7\u7684\u4ea7\u54c1\u3002\u5185\u90e8\u7ed3\u6784\u548c\u5de5\u4f5c\u539f\u7406\u90fd\u76f8\u540c\u3002NE555\u5c5e\u4e8eCMOS\u5de5\u827a\u5236\u9020\uff0c\u4e0b\u9762\u6211\u4eec\u5c06\u5bf9\u5176\u8fdb\u884c\u4ecb\u7ecd\u3002
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NE555\u7684\u5c01\u88c5\u5f62\u5f0f
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+18V 600mW -10\u2014+70\u2103
\u519b\u7528-55\u2014+125\u2103 -65\u2014+150\u2103 300\u2103
555\u8ba1\u65f6\u5668\u5b83\u5185\u90e8\u5305\u62ec\u4e24\u4e2a\u7535\u538b\u6bd4\u8f83\u5668\uff0c\u4e09\u4e2a\u7b49\u503c\u4e32\u8054\u7535\u963b\uff0c\u4e00\u4e2a
rs
\u89e6\u53d1\u5668\uff0c\u4e00\u4e2a\u653e\u7535\u7ba1
t
\u53ca\u529f\u7387\u8f93\u51fa\u7ea7\uff0c\u5e76\u63d0\u4f9b\u4e24\u4e2a\u57fa\u51c6\u7535\u538bvcc
/3
\u548c
2vcc
/3\u3002
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如图：
交通灯这电路比较复杂，它有逻辑电路。
如问题的要求，买数显时间继电器就可以了。
不知采用哪一个。
绛旓細濡傚浘锛
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绛旓細灏辨槸涓涓暟瀛绉掕〃鐢佃矾鍥,涓绉嶆槸绾閫昏緫鍣ㄤ欢鎼缓锛屽彟涓绉嶆槸鐢ㄥ崟鐗囨満锛岀數璺涓嬶細閫昏緫鍣ㄤ欢锛歨ttp://wenku.baidu.com/view/5f4638ef172ded630b1cb683.html?re=view 鍗曠墖鏈猴細http://wenku.baidu.com/view/634a326aa45177232f60a261.html?re=view ...
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绛旓細void tim(void) interrupt 1 using 1 //瀹氭椂鍣0涓柇 { static uchar second=99,count; //99鍙槸涓涓暟锛屽彲浠ヤ换鎰忔敼锛屽洜涓鸿繖閲屽彧瀛︿範鎬庢牱瀹炵幇鍊璁℃椂 TH0=0xd8; //瀹氭椂10姣 TL0=0xf0;count++;if(count==100) //10姣瀹氭椂锛10*100=1000锛堟绉)=1绉 { count=0;second--;...
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绛旓細璁℃暟鍣ㄥ畬鎴30绉璁℃椂鍔熻兘锛岃屾帶鍒剁數璺畬鎴愯鏁板櫒鐨勭洿鎺ユ竻闆躲佸惎鍔ㄨ鏁般佹殏鍋/杩炵画璁℃暟銆佽瘧鐮佹樉绀虹數璺殑鏄剧ず涓庣伃鐏佸畾鏃舵椂闂村埌鎶ヨ绛夊姛鑳姐傜鑴夊啿鍙戠敓鍣ㄤ骇鐢熺殑淇″彿鏄數璺殑鏃堕挓鑴夊啿鍜屽畾鏃舵爣鍑嗭紝浣嗘湰璁捐瀵规淇″彿瑕佹眰骞朵笉澶珮锛屾晠鐢佃矾鍙閲囩敤555闆嗘垚鐢佃矾鎴栫敱TTL涓庨潪闂ㄧ粍鎴愮殑澶氳皭鎸崱鍣ㄦ瀯鎴愩傝瘧鐮佹樉绀虹數璺敱74LS...
绛旓細555鏃跺熀鐢佃矾锛岄氬父鐢ㄦ潵鍋氬畾鏃跺櫒鎴栨槸鎸崱鍣紝鏄殑澶у瀹為獙璇惧繀瀛︿範鐨鍣ㄤ欢锛屽洜涓哄叾鍘熺悊绠鍗曪紝鏄暟瀛楃數璺拰妯℃嫙鐢佃矾杞崲鍣ㄤ欢锛屼篃鏄數璺叆闂ㄥ繀椤诲涔犵殑鍣ㄤ欢锛岀浉鍏崇數璺彲浠ュ湪鎴戠殑绌洪棿鍥剧墖閲岀湅鍒帮紝鍏蜂綋鐢佃矾鍘熺悊绛夌煡璇嗗彲浠ョ粰鎴戠暀瑷鈥︹
绛旓細鍒╃敤51鍗曠墖鏈,4涓暟鐮佺璁捐涓涓鏃跺櫒,瑕佹眰鍦ㄦ暟鐮佺涓婃樉绀虹殑鏁版嵁浠0寮濮嬫瘡1绉掗挓鍔1銆 鎴戞潵绛 5涓洖绛 #娲诲姩# 鍙備笌閫犲彞澶ф寫鎴,绛旈鐡滃垎涓囧厓璞ぜ zlzskddj2602 鎺ㄨ崘浜2017-09-27 鐭ラ亾绛斾富 鍥炵瓟閲:19 閲囩撼鐜:0% 甯姪鐨勪汉:0 鎴戜篃鍘荤瓟棰樿闂釜浜洪〉 ...
