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S-1410G20-A8T1U4 Datasheet(PDF) 10 Page - Seiko Instruments Inc |
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S-1410G20-A8T1U4 Datasheet(HTML) 10 Page - Seiko Instruments Inc |
10 / 36 page LOW CURRENT CONSUMPTION WATCHDOG TIMER WITH RESET FUNCTION S-1410/1411 Series Rev.2.0_00 10 Electrical Characteristics Table 9 (1 / 2) (WEN pin logic active "H" product, VDD = 5.0 V, Ta = +25°C unless otherwise specified) Item Symbol Condition Min. Typ. Max. Unit Test Circuit Detection voltage *1 −VDET − −VDET(S) × 0.985 −VDET(S) −VDET(S) × 1.015 V 1 Hysteresis width VHYS − −VDET × 0.03 −VDET × 0.05 −VDET × 0.07 V 1 Current consumption during operation ISS1 When watchdog timer operates − 3.8 7.8 μA 2 Reset time-out period tRST CPOR = 2200 pF 8.7 14.5 20 ms 3 Watchdog time-out period tWDU CWDT = 470 pF 15 24.6 34 ms 3 Watchdog double pulse detection time tWDL CWDT = 470 pF 461 769 1077 μs 4 Reset output voltage "H" VROH S-1411 Series A / B / C / D / E / F type only VDD − 1.0 − − V 5 Reset output voltage "L" VROL − − − 0.4 V 6 Reset output pull-up current IRUP VRST _______ = 0 V, S-1411 Series A / B / C / D / E / F type only − −0.85 −0.4 μA 7 Reset output current IROUT VDS = 0.4 V, S-1411 Series only VDD = 1.5 V 0.6 1.1 − mA 8 VDD = 1.8 V 1.1 1.6 − mA 8 VDD = 2.5 V 2.1 2.6 − mA 8 VDD = 3.0 V 2.8 3.3 − mA 8 Reset output leakage current IRLEAK VDS = 6.0 V, VDD = 6.0 V, S-1411 Series only − − 0.096 μA 9 Watchdog output voltage "H" VWOH A / B / C / D / E / F type only VDD − 1.0 − − V 10 Watchdog output voltage "L" VWOL − − − 0.4 V 11 Watchdog output pull-up current IWUP VWDO ________ = 0 V, A / B / C / D / E / F type only − −0.85 −0.4 μA 12 Watchdog output current IWOUT VDS = 0.4 V VDD = 1.5 V 0.6 1.1 − mA 13 VDD = 1.8 V 1.1 1.6 − mA 13 VDD = 2.5 V 2.1 2.6 − mA 13 VDD = 3.0 V 2.8 3.3 − mA 13 Watchdog output leakage current IWLEAK VDS = 6.0 V, VDD = 6.0 V − − 0.096 μA 14 Input pin voltage 1 "H" VSH1 WEN pin 0.7 × VDD − − V 15 Input pin voltage 1 "L" VSL1 WEN pin − − 0.3 × VDD V 15 Input pin voltage 2 "H" VSH2 W ___ / T pin, S-1410 Series only 0.7 × VDD − − V 15 Input pin voltage 2 "L" VSL2 W ___ / T pin, S-1410 Series only − − 0.3 × VDD V 15 Input pin voltage 3 "H" VSH3 WDI pin 0.7 × VDD − − V 15 Input pin voltage 3 "L" VSL3 WDI pin − − 0.3 × VDD V 15 |
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