

Overview
The STM32H523CEU6 is a microcontroller made by STMicroelectronics in a UFQFPN-48-EP(7x7) package with 49 pins. -40℃~+85℃ 1.71V~3.6V 250MHz 272KB 32 Bit 35 512KB ARM Cortex-M33 Built-in+External FLASH UFQFPN-48-EP(7x7) Microcontrollers (MCU/MPU/SOC) ROHS.
PCBKit's library has its KiCad symbol (MCU_ST_STM32H5:STM32H523CEUx, from KiCad's library) and its footprint (Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.6x5.6mm, from KiCad's library), ready for a KiCad board. 496 are in stock at JLCPCB (part C26082147). 3 open-source boards in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
10- CPU Core
- ARM Cortex-M33
- CPU Maximum Speed
- 250MHz
- Core Size
- 32 Bit
- Number of I/O
- 35
- Operating Temperature
- -40℃~+85℃
- Oscillator Type
- Built-in+External
- Program Memory Type
- FLASH
- Program Storage Size
- 512KB
- RAM Size
- 272KB
- Voltage - Supply
- 1.71V~3.6V
Order codes
1- STM32H523CEU6LCSC C26082147
Pinout
49| 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 |
| 49 | VSS | Passive |
Open-source boards using it
All 3- 2 layers100 × 65 mm

- 2 layers100 × 65 mm

- 2 layers100 × 65 mm

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Is there a KiCad symbol and footprint for the STM32H523CEU6?
Yes. The symbol is MCU_ST_STM32H5:STM32H523CEUx and the footprint Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.6x5.6mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the STM32H523CEU6?
UFQFPN-48-EP(7x7), with 49 pins. Its footprint is drawn on this page.
Where is the STM32H523CEU6 datasheet?
STMicroelectronics publishes it: the Datasheet link on this page opens it.
Where can I order the STM32H523CEU6?
JLCPCB lists it as part C26082147, with 496 in stock; the sellers' links on this page open their listings.
What can replace the STM32H523CEU6?
Parts like it in the library: the STM32H523CCU6 by STMicroelectronics, the STM32H503CBU6 by STMicroelectronics, the STM32G031C8U7 by STMicroelectronics and the STM32WB30CEU5A by STMicroelectronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the STM32H523CEU6?
3 boards in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8STM32H523CCU6
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