https://blog.youkuaiyun.com/rtgchymzh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/rtgchym/article/details/21467839https://blog.youkuaiyun.com/rtgchym/article/details/21467839rtgchymTue, 18 Mar 2014 17:00:39 +0800https://blog.youkuaiyun.com/rtgchym/article/details/11109357https://blog.youkuaiyun.com/rtgchym/article/details/11109357rtgchymThu, 05 Sep 2013 09:56:49 +0800https://blog.youkuaiyun.com/rtgchym/article/details/10826117https://blog.youkuaiyun.com/rtgchym/article/details/10826117rtgchymSun, 01 Sep 2013 15:12:43 +0800https://blog.youkuaiyun.com/rtgchym/article/details/9817443https://blog.youkuaiyun.com/rtgchym/article/details/9817443rtgchymWed, 07 Aug 2013 15:27:21 +0800https://blog.youkuaiyun.com/rtgchym/article/details/8180639https://blog.youkuaiyun.com/rtgchym/article/details/8180639rtgchymTue, 13 Nov 2012 22:17:07 +0800https://blog.youkuaiyun.com/rtgchym/article/details/7568184https://blog.youkuaiyun.com/rtgchym/article/details/7568184rtgchymTue, 15 May 2012 12:33:02 +0800https://blog.youkuaiyun.com/rtgchym/article/details/7520041https://blog.youkuaiyun.com/rtgchym/article/details/7520041rtgchymSat, 28 Apr 2012 14:27:01 +0800https://blog.youkuaiyun.com/rtgchym/article/details/7372781https://blog.youkuaiyun.com/rtgchym/article/details/7372781rtgchymTue, 20 Mar 2012 12:51:03 +0800https://blog.youkuaiyun.com/rtgchym/article/details/6422428https://blog.youkuaiyun.com/rtgchym/article/details/6422428rtgchymSun, 15 May 2011 14:37:00 +0800https://blog.youkuaiyun.com/rtgchym/article/details/6420269https://blog.youkuaiyun.com/rtgchym/article/details/6420269rtgchymSat, 14 May 2011 20:47:00 +0800https://blog.youkuaiyun.com/rtgchym/article/details/6222500https://blog.youkuaiyun.com/rtgchym/article/details/6222500rtgchymFri, 04 Mar 2011 10:11:00 +0800https://blog.youkuaiyun.com/rtgchym/article/details/6215184https://blog.youkuaiyun.com/rtgchym/article/details/6215184rtgchymTue, 01 Mar 2011 13:02:00 +0800https://blog.youkuaiyun.com/rtgchym/article/details/6209933https://blog.youkuaiyun.com/rtgchym/article/details/6209933rtgchymSat, 26 Feb 2011 16:17:00 +0800https://blog.youkuaiyun.com/rtgchym/article/details/6207692https://blog.youkuaiyun.com/rtgchym/article/details/6207692rtgchymFri, 25 Feb 2011 15:06:00 +0800https://blog.youkuaiyun.com/rtgchym/article/details/6205654https://blog.youkuaiyun.com/rtgchym/article/details/6205654rtgchymThu, 24 Feb 2011 17:06:00 +0800      地球人都知道STC的51系列单片机的指令系统和AT的完全兼容，最近做一个小系统出了点问题，在网上四处寻觅他俩之间的区别，结果……到处充斥着同样一句废话——他俩完全可以替换，但事实上问题很多——
1.STC单片机执行指令的速度很快（其实这也是一句废话，呵呵），大约是AT的3-30倍，尽管快是好事，但这样一来，你在AT上好使的程序在STC上不一定好用，反之亦然，最典型的例子就是那些对时序有要严格求求的模块，比如IIC，18B20、DS1302等的时序。再者，既然执行速度快了，那]]>https://blog.youkuaiyun.com/rtgchym/article/details/5220324https://blog.youkuaiyun.com/rtgchym/article/details/5220324rtgchymThu, 21 Jan 2010 13:51:00 +0800https://blog.youkuaiyun.com/rtgchym/article/details/5218477https://blog.youkuaiyun.com/rtgchym/article/details/5218477rtgchymWed, 20 Jan 2010 21:12:00 +08002.4V，     输出低电平。     在室温下，一般输出高电平是3.5V，输出低电平是0.2V。     最小输入高/低电平：输入高电平>=2.0V，输入低电平。3.DB]]>https://blog.youkuaiyun.com/rtgchym/article/details/5218476https://blog.youkuaiyun.com/rtgchym/article/details/5218476rtgchymWed, 20 Jan 2010 21:10:00 +0800