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MB91F577CSPMC 数据表(PDF) 120 Page - Cypress Semiconductor |
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MB91F577CSPMC 数据表(HTML) 120 Page - Cypress Semiconductor |
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120 / 163 page ![]() Document Number: 002-04725 Rev.*A Page 120 of 163 MB91570 Series 13.4.4 Power-on Conditions (TA: Recommended operating conditions, VSS = 0.0V) Parameter Symbol Pin name Conditions Value Unit Remarks Min Typ Max Level detection voltage – VCC5 – 2.1 2.3 2.5 V When turning on power for microcontroller Level detection hysteresis width – VCC5 – – – 125 mV During voltage drop Level detection time – – – – – 30 us *1 Slope detection undetected standard – VCC5 VCC5 = at level detection release level time – – 4 mV/µs *2 Power off time tOFF VCC5 – 50 – – ms *3 *1: If the fluctuation of the power supply is faster than the low voltage detection time, there is the possibility to generate or release after the power supply voltage has exceeded the detection voltage range. *2: When setting the power supply fluctuation to this standard or less, it is possible to suppress the slope detection. This is the standard when the power supply fluctuation is stable. *3: This time is to start the slope detection at next power on after power down and internal charge loss |
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