Description
The STM705/706/707/708/813L 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 STM707/708) as well as a power-fail comparator to provide the system with an early warning of impending power failure.
These devices are available in a standard 8-pin SOIC package or a space-saving 8-pin TSSOP package.

• 5 V operating voltage
• Precision VCC monitor
   – STM705/707/813L
   – 4.50 V ≤ VRST ≤ 4.75 V
   – STM706/708
   – 4.25 ≤ VRST ≤ 4.50 V
• RST and RST outputs
• 200 ms (typ) trec
• Watchdog timer - 1.6 s (typ)
• Manual reset input (MR)
• Power-fail comparator (PFI/PFO)
• Low supply current - 40 μA (typ)
• Guaranteed RST (RST) assertion down to VCC = 1.0 V
• Operating temperature:
   –40 °C to 85 °C (industrial grade) or
   –40 °C to 125 °C (automotive grade for the STM706 only)
• RoHS compliance
   – Lead-free components are compliant with the RoHS directive