https://blog.youkuaiyun.com/yulianqingzh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/yulianqing/article/details/82348130https://blog.youkuaiyun.com/yulianqing/article/details/82348130yulianqingMon, 03 Sep 2018 14:24:12 +0800https://blog.youkuaiyun.com/yulianqing/article/details/80417480https://blog.youkuaiyun.com/yulianqing/article/details/80417480yulianqingWed, 23 May 2018 11:22:41 +0800https://blog.youkuaiyun.com/yulianqing/article/details/80254919https://blog.youkuaiyun.com/yulianqing/article/details/80254919yulianqingWed, 09 May 2018 15:58:48 +0800https://blog.youkuaiyun.com/yulianqing/article/details/80253289https://blog.youkuaiyun.com/yulianqing/article/details/80253289yulianqingWed, 09 May 2018 14:39:55 +0800https://blog.youkuaiyun.com/yulianqing/article/details/5828964https://blog.youkuaiyun.com/yulianqing/article/details/5828964yulianqingSat, 21 Aug 2010 17:34:00 +0800最近有个项目用到了华邦（W77E058）、宏晶（STC90C54RD+、STC12C5A60S2）51单片机，按照数据手册，W77E058机器周期是4T，STC90C54RD+是12T，STC12C5A60S2是1T，粗略测试了一下，大致不错：
晶振22.1184M，执行10个NOP指令
STC90C54RD+ ： 10us
STC12C5A60S2： 750ns 
W77E058         ： 3us
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