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MB91F587LD датащи(PDF) 153 Page - SPANSION |
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MB91F587LD датащи(HTML) 153 Page - SPANSION |
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153 / 177 page ![]() D at aS h ee t 150 MB91F587LA_DS705-00012-2v0-E, August 22, 2014 CONFIDENTIAL (8) Low-voltage detection (External low-voltage detection) (TA: Recommended operating conditions, VSS=AVSS=0.0V) Parameter Symbol Pin name Conditions Value Unit Remarks Min Typ Max Power supply voltage range VDP5 VCC5 - - - 5.5 V Detection voltage VDL VCC5 *1 3.7 3.9 4.1 V When power supply voltage falls and detection level is set initially Hysteresis width VHYS VCC5 - - - 125 mV When power supply voltage rises Low-voltage detection time Td - - - - 30 μs Power supply voltage fluctuation rate - VCC5 - -2 - 2 V/ms *2 *1: If the fluctuation of the power supply has exceeded the detection voltage range within the time less than the low-voltage detection time (Td), there is the possibility to generate or release after the power supply voltage has exceeded the detection voltage range. *2: In order to perform the low-voltage detection at the detection voltage (VDL), be sure to suppress fluctuation of the power supply within the limits of the power supply voltage fluctuation rate. (9) Low-voltage detection (Internal low-voltage detection) (TA: Recommended operating conditions, VSS=AVSS=0.0V) Parameter Symbol Pin name Conditions Value Unit Remarks Min Typ Max Power supply voltage range VRDP5 - - - - 1.3 V Detection voltage VRDL - * 0.8 0.9 1.0 V When power supply voltage falls Hysteresis width VRHYS - - - - 50 mV When power supply voltage rises Low-voltage detection time - - - - - 30 μs *: If the fluctuation of the power supply is faster than the low-voltage detection time (Td), there is a possibility to generate or release after the power supply voltage has exceeded the detection voltage range. |
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