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Chapter 20
Regulator
User’s Manual U16702EE3V2UD00
20.2 Operation
The regulator operates in all modes (Normal mode, HALT mode, IDLE1 mode, IDLE2 mode, STOP
mode, and during RESET).
Be sure to connect a capacitor (REGC0: 4.7 µF, REGC1: 1.0 µF) to the REGC0 and REGC1 pin to sta-
bilize the regulator output.
A diagram of the regulator pin connections is shown below.
Figure 20-2:
REGC Pin Connection (REGC = Capacity)
Regulator 0
Input vol t age
4.0 V-5.5 V
V
DD0
REGC0
Regulator 1
V
DD1
REGC1
Input vol t age
4.0 V-5.5 V
1.0 µF
4.7 µF
To internal logic
2.5 V
To internal logic
2.5 V
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