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R8C2K Datasheet(PDF) 424 Page - Renesas Technology Corp |
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R8C2K Datasheet(HTML) 424 Page - Renesas Technology Corp |
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424 / 471 page  R8C/2K Group, R8C/2L Group 22. Electrical Characteristics Rev.1.10 Dec 21, 2007 Page 407 of 450 REJ09B0406-0110 Figure 22.2 Time delay until Suspend NOTES: 1. The measurement condition is VCC = 2.2 to 5.5 V and Topr = −20 to 85°C (N version) / −40 to 85°C (D version). 2. Necessary time until the voltage detection circuit operates when setting to 1 again after setting the VCA25 bit in the VCA2 register to 0. NOTES: 1. The measurement condition is VCC = 2.2 to 5.5 V and Topr = −20 to 85°C (N version) / −40 to 85°C (D version). 2. Time until the voltage monitor 1 interrupt request is generated after the voltage passes Vdet1. 3. Necessary time until the voltage detection circuit operates when setting to 1 again after setting the VCA26 bit in the VCA2 register to 0. 4. This parameter shows the voltage detection level when the power supply drops. The voltage detection level when the power supply rises is higher than the voltage detection level when the power supply drops by approximately 0.1 V. NOTES: 1. The measurement condition is VCC = 2.2 to 5.5 V and Topr = −20 to 85°C (N version) / −40 to 85°C (D version). 2. Time until the voltage monitor 2 interrupt request is generated after the voltage passes Vdet2. 3. Necessary time until the voltage detection circuit operates after setting to 1 again after setting the VCA27 bit in the VCA2 register to 0. Table 22.6 Voltage Detection 0 Circuit Electrical Characteristics Symbol Parameter Condition Standard Unit Min. Typ. Max. Vdet0 Voltage detection level 2.2 2.3 2.4 V − Voltage detection circuit self power consumption VCA25 = 1, VCC = 5.0 V − 0.9 −µA td(E-A) Waiting time until voltage detection circuit operation starts(2) −− 300 µs Vccmin MCU operating voltage minimum value 2.2 −− V Table 22.7 Voltage Detection 1 Circuit Electrical Characteristics Symbol Parameter Condition Standard Unit Min. Typ. Max. Vdet1 Voltage detection level(4) 2.70 2.85 3.00 V − Voltage monitor 1 interrupt request generation time(2) − 40 −µs − Voltage detection circuit self power consumption VCA26 = 1, VCC = 5.0 V − 0.6 −µA td(E-A) Waiting time until voltage detection circuit operation starts(3) −− 100 µs Table 22.8 Voltage Detection 2 Circuit Electrical Characteristics Symbol Parameter Condition Standard Unit Min. Typ. Max. Vdet2 Voltage detection level 3.3 3.6 3.9 V − Voltage monitor 2 interrupt request generation time(2) − 40 −µs − Voltage detection circuit self power consumption VCA27 = 1, VCC = 5.0 V − 0.6 −µA td(E-A) Waiting time until voltage detection circuit operation starts(3) −− 100 µs FMR46 Suspend request (maskable interrupt request) Fixed time td(SR-SUS) Clock-dependent time Access restart |
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