Crystal oscillator with an operating range of 1 MHz to 25 MHz.
Programmable watchdog oscillator with a frequency range of 7.8 kHz to 1.8 MHz.
PLL allows CPU operation up to the maximum CPU rate without the need for a high-frequency crystal. May be run from the system oscillator or the internal RC oscillator.
Clock output function with divider that can reflect the system oscillator clock, IRC clock, CPU clock, and the Watchdog clock.
Power control:
Integrated PMU (Power Management Unit) to minimize power consumption during Sleep, Deep-sleep, and Deep power-down modes.
Three reduced power modes: Sleep, Deep-sleep, and Deep power-down.
Processor wake-up from Deep-sleep mode via a dedicated start logic using up to 13 of the functional pins.
Power-On Reset (POR).
Brownout detect with four separate thresholds for interrupt and forced reset.
Unique device serial number for identification.
Single 3.3 V power supply (1.8 V to 3.6 V).
Available as 33-pin HVQFN package.
EM773应用：
Smart Metering
图1。EM773方框图
图2。EM773智能电表原理方框图
图3。EM773 CGU方框图
图4。EM773电表主要元件BOM
图5。EM773插头式电表外形图
图6。EM773智能电表无线插头电表电路图
[开关电源]CT取电-高压输电线路监本帖最后由power265于2017-5-509:12编辑
【感应取电资料集锦】CT取电电源技术-从电力系统高压母线获取低压电源
目录
1电流感应电源（CT取电）概述
1.1电流感应电源定义
1.2电流 [转载]采用磁致伸缩技术的位移传感 无接触的位移传感器，是对基于电位技术的位移传感器的革命性改进，相比于过去复杂的应用，采用磁致伸缩技术的位移传感器，无论在界面还是性能上，都有很大提升。您知道磁致伸缩技术 一体成型电感特点及相关技技术资料 一体成型电感与传统电感到底有何区别
一体成型电感属软磁粉末里的新式电感器，由于它有着自成闭合磁路机构与软磁材料选用的多样性。
一体成型电感的主要特 贴片元器件封装之SMT基础知识讲解贴片元件封装--SMT基础知识介绍简介：SMT(Surface Mount Technology)是电子业界一门新兴的工业技术，它的兴起及迅猛发展是电子组装业的一次革命，被誉为电子业的”明日之星&
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