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3 V supervisor with battery switchover

Quantity $ per Unit Savings
1 - 9$4.580%
10 - 24$4.1210%
25 - 99$3.8915%
100 - 180$3.3726%
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In stock
Parameter NameParameter Value
Operating RangeIndustrial
Packing TypeTape And Reel
RoHs compliantEcopack1
Package NameSO-8

The STM690/704/795/802/804/805/806 supervisors are self-contained devices which provide microprocessor supervisory functions with the ability to non-volatize and write-protect external LPSRAM. A precision voltage reference and comparator monitors the VCCinput for an out-of-tolerance condition. When an invalid VCCcondition occurs, the reset output (RST) is forced low (or high in the case of RST). These devices also offer a watchdog timer (except for STM704/795/806) as well as a power-fail comparator (except for STM795) 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.

Key features
  • RST orRSToutputs
  • NVRAM supervisor for external LPSRAM
  • Chip enable gating (STM795 only) for external LPSRAM (7 ns max prop delay)
  • Manual (push-button) reset input
  • 200 ms (typ) trec
  • Watchdog timer - 1.6 s (typ)
  • Automatic battery switchover
  • Low battery supply current - 0.4 μA (typ)
  • Power-fail comparator (PFI/PFO)
  • Low supply current - 40 μA (typ)
  • GuaranteedRST(RST) assertion down to VCC= 1.0 V
  • Operating temperature: –40 °C to 85 °C (industrial grade)
  • RoHS compliance
    • Lead-free components are compliant with the RoHS directive