STM6821中文资料复位 + 看门狗数据手册ST规格书

描述 Description

The STM6xxx supervisors are self-contained devices which provide microprocessor supervisory functions. A precision voltage reference and comparator monitors the VCCinput for an out-of-tolerance condition. When an invalid VCCcondition occurs, the reset output (RST) is forced low (or high in the case of RST). These devices also offer a watchdog timer (except for STM6322/6825) and/or a push-button (MR) reset input.

These devices are available in a standard 5-pin SOT23 package.

特性 Features

• Precision VCC monitoring of 5, 3.3, 3, or 2.5 V power supplies
• RST outputs (active low, push-pull or open drain)
• RST outputs (active high, push-pull)
• Reset pulse width of 1.4 ms, 200 ms and 240 ms (typ.)
• Watchdog timeout period of 1.6 s (typ.)
• Manual reset input (MR)
• Low supply current - 3 μA (typ.)
• GuaranteedRST(RST) assertion down to VCC= 1.0 V
• Operating temperature: –40 to +85 °C (industrial grade)
• RoHS complianceLead-free components are compliant with the RoHS directive

简介

STM6821属于集成电路（IC）的监控器。由ST制造生产的STM6821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。