STM6822

STM632x, STM682x 5-pin supervisor with watchdog timer and push-button reset Datasheet - production data 627/ 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.) 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 Description 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. These devices are available in a standard 5-pin SOT23 package. Part number STM632x STM682x STM6321 STM6322 STM6821 STM6822 STM6823 STM6824 STM6825 Table 1. Device summary Watchdog input ✔ ✔ ✔ ✔ ✔ Manual reset input Active low (push-pull) ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ Reset output Active high (push-pull) ✔ ✔ ✔ Active low (open drain) ✔ ✔ ✔ ✔ ✔ January 2023 This is information on a product in full production. DocID11110 Rev 14 1/31...