STM6822 5引脚与看门狗定时器和按钮复位
The STM6xxx supervisors are self-contained devices which provide microprocessor supervisory functions. A precision voltage reference and comparator monitors the VCC input for an out-of-tolerance condition. When an invalid VCC condition 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.
STM6822 产品特性:
- 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)(a)
- Watchdog timeout period of 1.6 s (typ)(a)
- Manual reset input (MR)
- Low supply current - 3 μA (typ)
- Guaranteed RST (RST) assertion down to VCC = 1.0 V
- Operating temperature: –40 to +85°C (industrial grade)
- RoHS compliance Lead-free components are compliant with the RoHS directive
STM6822 订购型号:
| Part number | Reset threshold (V) | Reset pulse width (ms) | Topside marking |
| STM6322LWY6F | 4.630 | 200 | 5BAx |
| STM6322MWY6F | 4.390 | 200 | 5BBx |
| STM6322TWY6F | 3.080 | 200 | 5BCx |
| STM6322SWY6F | 2.930 | 200 | 5BDx |
| STM6322RWY6F | 2.630 | 200 | 5BEx |
STM6822 技术支持与电子电路设计开发资源下载
- STM6822 数据手册Datasheet 下载.PDF
- 微处理器监控器选型指南
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