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R5F72115D160FPV Datasheet(PDF) 1107 Page - Renesas Technology Corp |
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R5F72115D160FPV Datasheet(HTML) 1107 Page - Renesas Technology Corp |
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1107 / 1228 page ![]() Section 27 Electrical Characteristics Rev. 2.00 May. 08, 2008 Page 1083 of 1200 REJ09B0344-0200 AVcc (5.0-V power supply) AVcc Min. voltage (4.5 V) VccQ (3.3-V power supply) VccQ Min. voltage (3.0 V) Vcc, PLLVcc (1.5-V power supply) Vcc, PLLVcc Min. (1.4 V) GND Pin initial status Normal operation period Figure 27.2 Power-On Sequence Notes: 1. AVcc = AVREF > Vcc = PLLVcc is recommended. Either AVcc or VccQ power supply can be turned on or off first. However, note that the equation AVcc ± 0.3 V = AVREF should always be true. Using the LSI under the following conditions may result in decreased reliability or permanent damage to the LSI. AVREF > AVcc ± 0.3 V 2. To prevent the pin and internal states from being undefined, VccQ and AVcc should be kept GND voltage level (0 V) and they should not be placed in floating state until Vcc reaches the Min. voltage. In addition, the RES pin should be input low to place power- on reset state. In this case, care must be taken for the power consumption increase caused by sink current because each pin is placed in low-impedance state until VccQ reaches the Min. voltage. |
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