User's Manual

EK-RA4W1 5. User Circuits
R20UT4683EJ0100 Rev.0.90 Page 13 of 30
Apr.28.20
5. User Circuits
5.1 Evaluation MCU
The MCU specifications for the power supply, system clock, and reset at the time of shipment are as follows.
 Power supply: Fixed 3.3 V (including the analog power supply)
 System clock: Operation with an on-chip oscillator
 Reset: Directed by the reset switch or IDE
5.2 Bluetooth

Low Energy
A BLE communications circuit is mounted on this board.
Figure 5-1 BLE Circuit
Note:
Never remodel the BLE circuit, as doing so will violate radio-related laws.