STM32H7XX M
STM32H750VBT6
Board
| Name | STM32H7XX M |
| Part | STM32F7XX_M (note the typo F instead of H) |
| Brand | DevEBox |
| Origin | China |
Microcontroller
| Part | STM32H750VBT6 |
| Manufacturer | ST-Microelectronics |
| Core | Arm Cortex-M7 |
| Max. Clock Speed | 400MHz |
| Package | UFQFPN 100 pins |
Internal memories
| FLASH | 128KiB |
| SRAM | 1024KiB |
Oscillators
| HSI | 64MHz |
| LSI | 32kHz |
| HSE | 25MHz |
| LSE | 32.768kHz |
Power
| Sources | Any +3.3V pin (+3.3V) Any +5V pin (+5V) USB connector (+5V) |
| VDDA pin | Yes |
| VSSA pin | No |
| VREF- pin | No |
| VREF+ pin | Yes |
| Backup battery | Header |
Regulator
| Manufacturer | Advanced Monolithic Systems Inc. |
| Part | AMS1117 (AMS1117) |
| Package | SOT223 3 pins |
| Input | +4.6V to +15V |
| Output | +3.3V @ 1A |
| Datasheet | AMS1117.pdf |
PCB
| Color | Black |
| Size (w x l) | 40mm x 68mm |
| Mounting | 4x mounting hole (M3) |
Remarks
- Warning: The +5V pins on this board are directly connected to the +5V pin of the USB connector. There is no protection in place. Do not power this board through USB and an external power supply at the same time.
Resources
Devices
Inputs & outputs
Reset button
| Name | RST |
| Reference | - |
| Type | Button |
| Connected to | NRST |
| Mode | Active low |
User button 1
| Name | K1 |
| Reference | - |
| Type | Button |
| Connected to | PE3 |
| Mode | Active low |
User button 2
| Name | K2 |
| Reference | - |
| Type | Button |
| Connected to | PC5 |
| Mode | Active low |
Power LED
| Name | D1 |
| Reference | - |
| Type | LED |
| Connected to | +3.3V rail |
| Mode | N.A. |
User LED
| Name | D2 |
| Reference | - |
| Type | LED |
| Connected to | PA1 |
| Mode | Sink |
Connectors & headers
Header 1 properties
| Name | Unknown |
| Reference | None |
| Type | Pin header (2.54mm, 22x2, male) |
Header 1 pins
| # | Name | Function | Connected to |
|---|---|---|---|
| 1 | 3V3 | - | +3.3V rail |
| 2 | 3V3 | - | +3.3V rail |
| 3 | GND | - | Ground plane |
| 4 | GND | - | Ground plane |
| 5 | VDDA | - | VDDA |
| 6 | VREF+ | - | VREF+ |
| 7 | PB15 | - | PB15 |
| 8 | PB14 | - | PB14 |
| 9 | PB13 | - | PB13 |
| 10 | PB12 | - | PB12 |
| 11 | PB11 | - | PB11 |
| 12 | PB10 | - | PB10 |
| 13 | PE15 | - | PE15 |
| 14 | PE14 | - | PE14 |
| 15 | PE13 | - | PE13 |
| 16 | PE12 | - | PE12 |
| 17 | PE11 | - | PE11 |
| 18 | PE10 | - | PE10 |
| 19 | PE9 | - | PE9 |
| 20 | PE8 | - | PE8 |
| 21 | PE7 | - | PE7 |
| 22 | PB2 | - | PB2 |
| 23 | PB1 | - | PB1 |
| 24 | PB0 | - | PB0 |
| 25 | PC5 | - | PC5 |
| 26 | PC4 | - | PC4 |
| 27 | PA7 | - | PA7 |
| 28 | PA6 | - | PA6 |
| 29 | PA5 | - | PA5 |
| 30 | PA4 | - | PA4 |
| 31 | PA3 | - | PA3 |
| 32 | PA2 | - | PA2 |
| 33 | PA1 | - | PA1 |
| 34 | PA0 | - | PA0 |
| 35 | PC3 | - | PC3 |
| 36 | PC2 | - | PC2 |
| 37 | PC1 | - | PC1 |
| 38 | PC0 | - | PC0 |
| 39 | PC13 | - | PC13 |
| 40 | PE6 | - | PE6 |
| 41 | PE5 | - | PE5 |
| 42 | PE4 | - | PE4 |
| 43 | PE3 | - | PE3 |
| 44 | PE2 | - | PE2 |
Header 2 properties
| Name | Unknown |
| Reference | None |
| Type | Pin header (2.54mm, 22x2, male) |
Header 2 pins
| # | Name | Function | Connected to |
|---|---|---|---|
| 1 | 5V | - | +5V rail |
| 2 | 5V | - | +5V rail |
| 3 | 3V3 | - | +3.3V rail |
| 4 | 3V3 | - | +3.3V rail |
| 5 | GND | - | Ground plane |
| 6 | GND | - | Ground plane |
| 7 | PD9 | - | PD9 |
| 8 | PD8 | - | PD8 |
| 9 | PD11 | - | PD11 |
| 10 | PD10 | - | PD10 |
| 11 | PD13 | - | PD13 |
| 12 | PD12 | - | PD12 |
| 13 | PD15 | - | PD15 |
| 14 | PD14 | - | PD14 |
| 15 | PC7 | - | PC7 |
| 16 | PC6 | - | PC6 |
| 17 | PC9 | - | PC9 |
| 18 | PC8 | - | PC8 |
| 19 | PA9(TX1) | - | PA9 |
| 20 | PA8 | - | PA8 |
| 21 | PA11 | - | PA11 |
| 22 | PA10(RX1) | - | PA10 |
| 23 | PA15 | - | PA15 |
| 24 | PA12 | - | PA12 |
| 25 | PC11 | - | PC11 |
| 26 | PC10 | - | PC10 |
| 27 | PD0 | - | PD0 |
| 28 | PC12 | - | PC12 |
| 29 | PD2 | - | PD2 |
| 30 | PD1 | - | PD1 |
| 31 | PD4 | - | PD4 |
| 32 | PD3 | - | PD3 |
| 33 | PD6 | - | PD6 |
| 34 | PD5 | - | PD5 |
| 35 | PB3 | - | PB3 |
| 36 | PD7 | - | PD7 |
| 37 | PB5 | - | PB5 |
| 38 | PB4 | - | PB4 |
| 39 | PB7 | - | PB7 |
| 40 | PB6 | - | PB6 |
| 41 | PB9 | - | PB9 |
| 42 | PB8 | - | PB8 |
| 43 | PE1 | - | PE1 |
| 44 | PE0 | - | PE0 |
USB connector properties
| Name | Unknown |
| Reference | J5 |
| Type | USB Micro |
USB connector pins
| # | Name | Function | Connected to |
|---|---|---|---|
| 1 | - | VCC | +5V rail |
| 2 | - | D- | PA11 via 22Ω resistor (R2) |
| 3 | - | D+ | PA12 via 22Ω resistor (R3) |
| 4 | - | ID | N.C. |
| 5 | - | GND | Ground plane |
SWD header properties
| Name | SWD |
| Reference | J1 |
| Type | Pin header (2.54mm, 22x2, male) |
SWD header pins
| # | Name | Function | Connected to |
|---|---|---|---|
| 1 | BT0 | - | BOOT0 |
| 2 | 3V3 | - | +3.3V rail |
| 3 | GND | - | Ground plane |
| 4 | SWDIO | - | PA13 |
| 5 | SWCLK | - | PA14 |
TFT header properties
| Name | LCD / OLED |
| Reference | J4 |
| Type | Pin header (2.54mm, 8x1, female) |
TFT header pins
| # | Name | Function | Connected to |
|---|---|---|---|
| 1 | 3V3 | - | +3.3V rail |
| 2 | GND | - | Ground plane |
| 3 | SDI | - | PB15 |
| 4 | SCL | - | PB13 |
| 5 | CS | - | PB12 |
| 6 | SDO | - | PB14 |
| 7 | D/C | - | PB1 |
| 8 | BLK | - | PB0 |
SD-card connector properties
| Name | Unknown |
| Reference | None |
| Type | microSD |
SD-card connector pins
| # | Name | Function | Connected to |
|---|---|---|---|
| 1 | - | DAT2 | PC10 |
| 2 | - | CD/DAT3 | PC11 |
| 3 | - | CMD | PD2 |
| 4 | - | VDD | +3.3V rail |
| 5 | - | CLK | PC12 |
| 6 | - | VSS | Ground plane |
| 7 | - | DAT0 | PC8 |
| 8 | - | DAT1 | PC9 |
| 9 | - | CD | N.C. |
| 10 | - | Body | Ground plane |
Battery header properties footprint
| Name | Unknown |
| Reference | B1 |
| Type | Pin header (2.54mm, 2x1, male) |
Battery header pins footprint
| # | Name | Function | Connected to |
|---|---|---|---|
| 1 | + | - | VBAT |
| 2 | - | - | Ground plane |
Devices
W25Q64JV properties
| Name | Unknown |
| Reference | Unknown |
| Manufacturer | Winbond Electronics Corporation |
| Part | W25Q64JV |
| Marking | W25Q64JVSIQ |
| Datasheet | W25Q64JV.pdf |
| Package | SOIC 8 pins |
| Description | 8MiB Dual/Quad SPI FLASH |
W25Q64JV pins
| # | Name | Function | Connected to |
|---|---|---|---|
| 1 | - | /CS | PB6 |
| 2 | - | DO | PD12 |
| 3 | - | IO2 | PE2 |
| 4 | - | GND | Ground plane |
| 5 | - | DI | PD11 |
| 6 | - | CLK | PB2 |
| 7 | - | IO3 | PD13 |
| 8 | - | VCC | +3.3V rail |



