MIC812中文资料Microprocessor Reset Circuit with Manual Reset, Push-Pull Active-High Output, 4.0 V Thresh数据手册Microchip规格书

描述 Description

The MIC811 and MIC812 are inexpensive microprocessor supervisory circuits that monitor power supplies in microprocessor based systems.The function of this device is to assert a reset if either the power supply drops below a designated reset threshold level or /MR is forced low. Several different reset threshold levels are available to accommodate 3V, 3.3V or 5V powered systems.The MIC811 has an active low /RESET output, while the MIC812 offers an active high RESET output. The reset output is guaranteed to remain asserted for a minimum of 140ms after VCC has risen above the designed reset threshold level. Having a push-pull output stage, the MIC811/812 does not require a pull-up resistor at the output. The MIC811/812 comes in a 4-pin SOT-143 package.If a microprocessor voltage supervisor with an open-drain output stage is needed, see MIC6315.

特性 Features

•Precision voltage monitor for 3V, 3.3V or 5V power supplies
•/RESET remains valid with VCC as low as 1V
•5µA typical supply current
•140ms minimum reset pulse width available
•Manual reset input
•Available in 4-pin SOT-143 package

简介

MIC812属于集成电路（IC）的监控器。由制造生产的MIC812监控器PMIC 监控器用于监视和/或控制电路中的电压轨，能够连接微控制器以维持一定的功率限值。监控器类型包括电池备用电路、监控器、多电压监控器、电源监控器、稳压器/监控器、复位计时器、定序器、简单复位/上电复位、智能开/关控制器、系统管理器、电压检测器和看门狗电路。