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STM705-2005 데이터시트

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STM705
ST-Microelectronics
STMicroelectronics ST-Microelectronics
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SUMMARY 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.

FEATURES SUMMARY
■ 5V OPERATING VOLTAGE
■ PRECISION VCC MONITOR
   – STM705/707/813L
      4.50V ≤ VRST ≤ 4.75V
   – STM706/708
      4.25 ≤ VRST ≤ 4.50V
■ RST AND RST OUTPUTS
■ 200ms (TYP) trec
■ WATCHDOG TIMER - 1.6sec (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)

 

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