Power-On/Off Sequence Without 2.5-V Built-In Regulator; Figure 2.1 Power-On/Off Sequence (Without 2.5-V Built-In Regulator); Figure 2.2 Power Supply Channel To R-In32M4-Cl3 (Without 2.5-V Built-In Regulator) - Renesas R-IN32M4-CL3 User Manual

R-IN32M4-CL3 User's Manual: Board design edition
2.1.1

Power-On/Off Sequence without 2.5-V built-in Regulator

(1) Supplying Power Voltages
Supply power voltages so that the following two conditions are both satisfied.
1. The period from when VDD33, VDD25, or VDD11 reaches 10% VDD to when all of them reach 90% VDD or
higher is within 100 ms.
2. The period from when VDD33, VDD25, or VDD11 reaches 95% VDD to when all of them reach 95% VDD or
higher is within 50 ms.
(2) Turning Off Power Voltages
Turn off power voltages so that the following two conditions are both satisfied.
1. The period from when VDD33, VDD25, or VDD11 reaches 90% VDD to when all of them reach 10% VDD or
lower is within 100 ms.
2. The period from when VDD33, VDD25, or VDD11 reaches 95% VDD to when all of them reach 95% VDD or
lower is within 50 ms.
External power supply
VDD33
90% VDD33
VDD25
VDD11
10% VDD11
GND

Figure 2.1 Power-On/Off Sequence (without 2.5-V built-in Regulator)

Figure 2.2 Power Supply Channel to R-IN32M4-CL3 (without 2.5-V built-in Regulator)

R18UZ0074EJ0100
Dec 24, 2019
50 ms
100 ms
3.3 ± 0.165 V
Regulator
R-IN32M4-CL3
95% VDD33
95% VDD25
95% VDD11
2.5 ± 0.125 V 1.15 ± 0.06 V
Gigabit
Ethernet
PHY
2. Power/Reset Pins
90% VDD33
10% VDD11
50 ms
100 ms
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