Renesas RL78/G1P Hardware User Manual page 680

RL78/G1P
21.1 Regulator Overview
The RL78/G1P contains a circuit for operating the device with a constant voltage. At this time, in order to stabilize the
regulator output voltage, connect the REGC pin to V
characteristics, since it is used to stabilize internal voltage.
Caution Keep the wiring length as short as possible for the broken-line part in the above figure.
The regulator output voltage, see Table 21-1.
Mode
LS (low-speed main) mode
HS (high-speed main) mode
Note When it shifts to the STOP mode during the on-chip debugging, the regulator output voltage is kept at 2.1 V (not
decline to 1.8 V).
R01UH0895EJ0100 Rev.1.00
Nov 29, 2019
CHAPTER 21 REGULATOR
SS
Table 21-1. Regulator Output Voltage Conditions
Output Voltage
1.8 V
1.8 V In STOP mode
2.1 V Other than above (include during OCD mode)
via a capacitor (0.47 to 1
REGC
V
SS
Condition
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CHAPTER 21 REGULATOR
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F). Also, use a capacitor with good
Note
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