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