This is a 3V Supervisor with Precision VCC Monitor, RST and RST outputs, 200ms trec, 1.6sec WATCHDOG TIMER, MANUAL RESET INPUT, POWER-FAIL COMPARATOR, LOW SUPPLY CURRENT, guaranteed RST (RST) assertion down to VCC = 1.0V, operating temperature of -40°C to 85°C (Industrial Grade) features
The STM70X supervisor family provides micro‑processor supervisory functions such as precise voltage monitoring, reset output control, a watchdog timer (except STM708) and a power‑fail comparator. The devices operate from 2.88 V to 3.15 V, guarantee reset assertion down to 1 V, and draw only 40 µA typical supply current.
Available in standard 8‑pin SOIC (SO8) and space‑saving 8‑pin TSSOP packages, the parts offer active‑low or active‑high reset outputs, a push‑button reset input, and optional watchdog and power‑fail pins. Detailed electrical characteristics, pin descriptions, and typical operating curves are provided in the document.
| Operating temperature | -40 °C to 85 °C (Industrial Grade) |
|---|---|
| Low supply current (typical) | 40 µA |
| Watchdog timer period (typical) | 1.6 s |
| Reset assertion time (typical) | 200 ms |
| Supply voltage range | 2.88 V < Vcc < 3.15 V |
| Reset guaranteed down to | 1.0 V |
If the WDI pin remains high or low for 1.6 s, the internal watchdog timer expires and the reset (or WDO) output is triggered.
The devices are offered in a standard 8‑pin SOIC (SO8) package and a space‑saving 8‑pin TSSOP package.
The typical supply current is 40 µA.