RH850/F1Kx, RH850/F1K Series Hardware Design Guide
R01AN3841ED0110 Rev. 1.10 Page 44 of 108
August 8, 2019
1.5 Power Supply Overview of RH850/F1K
1.5.1 Power Supply Pin Overview of RH850/F1K
The devices of the RH850/F1K have the following power supply pins:
• Power supply voltage REGVCC for the on-chip voltage regulators. The output voltage of the voltage
regulators is supplied to the digital circuits in each power domain.
• Power supply voltage EVCC for the I/O ports.
• Power supply voltages A0VREF and A1VREF (depending on the device pin count) for the A/D converters and
the separated I/O ports.
Table 43: RH850/F1K Power supply pin overview
AWOVCL
Note
, AWOVSS
ISOVCL
Note
, ISOVSS
EVCC, EVSS
A0VREF, A0VSS
AWOVCL
Note
, AWOVSS
ISOVCL
Note
, ISOVSS
EVCC, EVSS
A0VREF, A0VSS
AWOVCL
Note
, AWOVSS
ISOVCL
Note
, ISOVSS
EVCC, EVSS
Note: The pins AWOVCL and ISOVCL are available on all devices to connect external stabilization capacitors. Do
not use AWOVCL and ISOVCL as power source of other devices.