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

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
</code>

<code>
PC13 BUTTON
PA5  LED GREEEN
</code>



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