
STMicroelectronics
SUMMARY DESCRIPTION
The STM70x Supervisors are self-contained devices which provide microprocessor supervisory
functions. A precision voltage reference and comparator monitors the VCCinput for an out-of-toler
ance condition. When an invalid VCC condition occurs, the reset output (RST) is forced low (or
high in the case of RST).
FEATURES SUMMARY
■ PRECISION VCCMONITOR
– STM706/708
T: 3.00V ≤VRST ≤3.15V
S: 2.88V ≤VRST ≤3.00V
R; STM706P: 2.59V ≤VRST ≤2.70V
■ RST AND RSTOUTPUTS
■ 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)