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Home » NEWEST Products » New by Manufacturer » STMicroelectronics » STM705/706/708/813L Supervisors - STM
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STMicroelectronics STM705/706/708/813L Supervisors

STMicroelectronics STM705/706/708/813L Supervisors

STMicroelectronics STM705/706/708/813L 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. Typical applications include computers, controllers, intelligent instruments, critical μP power monitoring, terminals, base stations, medical equipment, and set-top boxes.

Features
  • 5V operating voltage
  • Precision VCC monitor
  • STM705/813L
    • 4.50V ≤ VRST ≤ 4.75V
  • STM706/708
    • 4.25V ≤ VRST ≤ 4.50V
  • RST and RST outputs
  • 200ms (typ) trec
  • Watchdog timer - 1.6s (typ)
  • Manual reset input (MR)
  • Power-fail comparator (PFI/PFO)
  • Low supply current - 40μA (typ)
  • Guaranteed RST (RST) assertion down to VCC = 1.0V
  • 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
Applications
  • Computers
  • Controllers
  • Intelligent instruments
  • Critical μP power monitoring
  • Terminals
  • Base stations
  • Medical equipment
  • Set-top box
Block Diagram
Block Diagram
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  • STMicroelectronics