
STM32H503CBT6
r-pv/STM32H503CBT6
ST development board based on the STM32H503CBT6 MCU. Compatible with Arduino.

The STM32H503CBT6 is a microcontroller made by STMicroelectronics in a LQFP-48(7x7) package with 48 pins. -40℃~+85℃ 1.71V~3.6V 128KB 250MHz 32 Bit 32KB 35 ARM Cortex-M33 Built-in+External FLASH LQFP-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHS.
PCBKit's library has its KiCad symbol (MCU_ST_STM32H5:STM32H503CBTx, from KiCad's library) and its footprint (Package_QFP:LQFP-48_7x7mm_P0.5mm, from KiCad's library), ready for a KiCad board. 279 are in stock at JLCPCB (part C17700273). 2 open-source boards in 2 repositories on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | VBAT | Power in |
| 2 | PC13 | Input/output |
| 3 | PC14 | Input/output |
| 4 | PC15 | Input/output |
| 5 | PH0 | Input/output |
| 6 | PH1 | Input/output |
| 7 | NRST | Input |
| 8 | VSSA | Power in |
| 9 | VDDA | Power in |
| 10 | PA0 | Input/output |
| 11 | PA1 | Input/output |
| 12 | PA2 | Input/output |
| 13 | PA3 | Input/output |
| 14 | PA4 | Input/output |
| 15 | PA5 | Input/output |
| 16 | PA6 | Input/output |
| 17 | PA7 | Input/output |
| 18 | PB0 | Input/output |
| 19 | PB1 | Input/output |
| 20 | PB2 | Input/output |
| 21 | PB10 | Input/output |
| 22 | VCAP | Power out |
| 23 | VSS | Power in |
| 24 | VDD | Power in |
| 25 | PB12 | Input/output |
| 26 | PB13 | Input/output |
| 27 | PB14 | Input/output |
| 28 | PB15 | Input/output |
| 29 | PA8 | Input/output |
| 30 | PA9 | Input/output |
| 31 | PA10 | Input/output |
| 32 | PA11 | Input/output |
| 33 | PA12 | Input/output |
| 34 | PA13(JTMS | Input/output |
| 35 | VSS | Passive |
| 36 | VDD | Power in |
| 37 | PA14(JTCK | Input/output |
| 38 | PA15(JTDI) | Input/output |
| 39 | PB3(JTDO | Input/output |
| 40 | PB4(NJTRST) | Input/output |
| 41 | PB5 | Input/output |
| 42 | PB6 | Input/output |
| 43 | PB7 | Input/output |
| 44 | BOOT0 | Input |
| 45 | PB8 | Input/output |
| 46 | VCAP | Power out |
| 47 | VSS | Passive |
| 48 | VDD | Power in |

r-pv/STM32H503CBT6
ST development board based on the STM32H503CBT6 MCU. Compatible with Arduino.

<iframe src="https://pcbkit.io/embed/parts/st/STM32H503CBT6" title="STM32H503CBT6 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/st/STM32H503CBT6.jpg" alt="STM32H503CBT6" width="1200" height="900">[](https://pcbkit.io/parts/st/STM32H503CBT6)Yes. The symbol is MCU_ST_STM32H5:STM32H503CBTx and the footprint Package_QFP:LQFP-48_7x7mm_P0.5mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
LQFP-48(7x7), with 48 pins. Its footprint is drawn on this page.
STMicroelectronics publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C17700273, with 279 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the AT32F435CGT7 by ARTERY, the AT32F435CMT7 by ARTERY, the STM32H523CCT7 by STMicroelectronics and the STM32H523CET6 by STMicroelectronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.
2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.