Jumper
JP17
VDD is connected to VDD_ADJ when JP17 is set as shown:
1. The default setting is in bold.
Note:
The VDD_MCU Idd measurement can be done by the current meter that is mounted on JP18 when it is OFF.
But JP18 must not be OFF without a current meter. Otherwise, MCU may be damaged due to the lack of power
supply on its power pins.
Note:
LD5 is lit when VDD < 2.7 V and in this case IOs and some Analog IPs of MCU work with degraded
performances.
Note:
The UCPD daughterboard works with VDD = 3.3 V, so it is mandatory to close JP17 pin1 and pin2. The
LED LD7 is lit when the STM32G0C1E-EV Evaluation board is powered by the 5 V correctly.
the low-voltage limitations that may apply depending on the characteristics of some peripheral components.
Components may work incorrectly when the power level is lower than the limitation.
Table 5.
Low voltage limitation
Board
Peripheral
Component
I/O name
Low-voltage limitation
Mother board MB1581
Audio amplifier
U17
Audio output
2.2 V
Mother board MB1581
Microphone amplifier
U12
Audio input
2.7 V
Legacy
daughterboardMB1351
Smartcard
MB1351_CN2
USART2
2.7 V
UM2783
Power supply
UM2783
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Rev 1
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