Power Management ICs

105°C Operation, 3.8 μA Current Consumption Watchdog Timer with Reset Function S-1410/1411

DatasheetSep. 09, 2020


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The S-1410/1411 Series is a watchdog timer developed using CMOS technology, which can operate with low current consumption of 3.8 μA typ. The reset function and the low voltage detection function are available.


Detection voltage
2.0 V to 5.0 V, selectable in 0.1 V step
Detection voltage accuracy
Input voltage
Vdd = 0.9 V to 6.0 V
Hysteresis width
5% typ.
Current consumption during watchdog timer operation
3.8 μA typ.
Reset time-out period
14.5 ms typ. (Cpor = 2200 pF)
Watchdog time-out period
24.6 ms typ. (Cwdt = 470 pF)
Watchdog operation is switchable
Enable, Disable
Watchdog operation voltage range
VDD = 2.5 V to 6.0 V
Watchdog mode switching function*1
Time-out mode, window mode
Watchdog input edge is selectable
Rising edge, falling edge, both rising and falling edges
Product type is selectable
S-1410 Series
(Product with W/ T pin (Output : WDOpin))
S-1411 Series
(Product without W/ T pin (Output : RSTpin, WDOpin))
Operation temperature range
Ta = −40°C to +105°C
Lead-free (Sn 100%), halogen-free

*1. The S-1411 Series is fixed to the window mode.


  • Power supply monitoring of microcontroller mounted apparatus and system monitoring