====NUCLEO-H503RB=====

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{{boards:h503rb.jpg?200}}
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This demo board contains a 250 MHz STM32H503RBT6 Arm Cortex-M33 MCU
with 128KB Flash and 32KB RAM.


===Pinout===

<code>
PB14 USART1 TX ARDUINO D1 TX
PB15 USART1 RX ARDUINO D0 RX

PA3 USART3 RX VCP RX
PA4 USART3 TX VCP TX

PC13 BUTTON
PA5  LED GREEEN

LSE X2 32.768 KHz 
HSE X3 NX2016SA 24 MHz
</code>

<code>
Arduino compatible headers

                 PB6  D15 I2C1 SCL
                 PB7  D14 I2C1 SDA
                      AVDD
NC                    GND
IOREF        LED PA5  D13 SPI1 SCK
RESET            PA6  D12 SPI1 MISO     
3V3              PA7  D11 SPI1 MOSI
5V               PC9  D10 SPI1 CS
GND              PC6  D9
GND              PC7  D8
VIN
                 PA8  D7
                 PB10 D6
AD0 PA0          PB4  D5
AD1 PA1          PB5  D4
AD2 PA2          PB3  D3
AD3 PB0          PA10 D2
AD4 PC1          PB14 D1  USART1 TX
AD5 PC0          PB15 D0  USART1 RX
</code>
===Resources===

[[https://www.st.com/en/evaluation-tools/nucleo-h503rb.html|Product page]]

[[https://www.st.com/resource/en/data_brief/nucleo-h503rb.pdf|Data brief]]

[[https://www.st.com/resource/en/user_manual/um3121-stm32h5-nucleo64-board-mb1814-stmicroelectronics.pdf|User manual]]

[[https://www.st.com/resource/en/schematic_pack/mb1814-h503rb-b02-schematic.pdf|Schematic]]

[[https://www.st.com/en/microcontrollers-microprocessors/stm32h503rb.html|MCU product page]]

[[https://www.st.com/resource/en/datasheet/stm32h503rb.pdf|MCU data-sheet]]

[[https://www.st.com/resource/en/reference_manual/rm0492-stm32h503-line-armbased-32bit-mcus-stmicroelectronics.pdf|MCU reference manual]]

[[https://www.st.com/resource/en/errata_sheet/es0561-stm32h503cbebkbrb-device-errata-stmicroelectronics.pdf|MCU errata]]