Micro Board
STM32F103C8T6
Board
| Name | Micro Board |
| Part | Unknown |
| Brand | Unknown |
| Origin | China |
Microcontroller
| Part | STM32F103C8T6 |
| Manufacturer | ST-Microelectronics |
| Core | Arm Cortex-M3 |
| Max. Clock Speed | 72MHz |
| Package | LQFP 48 pins |
Internal memories
| FLASH | 64KiB |
| SRAM | 20KiB |
Oscillators
| HSI | 8MHz |
| LSI | 40kHz |
| HSE | 8MHz |
| LSE | 32.768kHz |
Power
| Sources | Any +3.3V pin (+3.3V) USB connector (+5V) |
| VDDA pin | No |
| VSSA pin | No |
| VREF- pin | No |
| VREF+ pin | No |
| Backup battery | None |
Regulator
| Manufacturer | Torex Semiconductor LTD. |
| Part | XC6206 (662K) |
| Package | SOT23 3 pins |
| Input | +3.6V to +6V |
| Output | +3.3V @ 200mA |
| Datasheet | XC6206.pdf |
PCB
| Color | Black |
| Size (w x l) | 25mm x 25mm |
| Mounting | None |
Remarks
Pictures
Resources
Inputs
Connectors
Devices
None
Inputs & outputs
Reset button
| Name | - |
| Reference | - |
| Type | Button |
| Connected to | NRST |
| Mode | Active low |
Power LED
| Name | - |
| Reference | - |
| Type | LED |
| Connected to | +3.3V rail |
| Mode | N.A. |
User LED
| Name | - |
| Reference | - |
| Type | LED |
| Connected to | PA11 |
| Mode | Sink |
Connectors & headers
Header 1 properties
| Name | Unknown |
| Reference | None |
| Type | pin header (2.54mm, 20x1, male) |
Header 1 pins
| # | Name | Function | Connected to |
|---|---|---|---|
| 1 | - | - | VBAT |
| 2 | - | - | PC13 |
| 3 | - | - | PC14 |
| 4 | - | - | PC15 |
| 5 | - | - | PA0 |
| 6 | - | - | PA1 |
| 7 | - | - | PA2 |
| 8 | - | - | PA3 |
| 9 | - | - | PA4 |
| 10 | - | - | PA5 |
| 11 | - | - | PA6 |
| 12 | - | - | PA7 |
| 13 | - | - | PB0 |
| 14 | - | - | PB1 |
| 15 | - | - | PB2 |
| 16 | - | - | PB10 |
| 17 | - | - | PB11 |
| 18 | - | - | Ground plane |
| 19 | - | - | +5V rail |
| 20 | - | - | +3.3V rail |
Header 2 properties
| Name | Unknown |
| Reference | None |
| Type | pin header (2.54mm, 20x1, male) |
Header 2 pins
| # | Name | Function | Connected to |
|---|---|---|---|
| 1 | - | - | Ground plane |
| 2 | - | - | PB9 |
| 3 | - | - | PB8 |
| 4 | - | - | PB7 |
| 5 | - | - | PB6 |
| 6 | - | - | PB5 |
| 7 | - | - | PB4 |
| 8 | - | - | PB3 |
| 9 | - | - | PA15 |
| 10 | - | - | PA14 |
| 11 | - | - | PA13 |
| 12 | - | - | PA12 |
| 13 | - | - | PA11 |
| 14 | - | - | PA10 |
| 15 | - | - | PA9 |
| 16 | - | - | PA8 |
| 17 | - | - | PB15 |
| 18 | - | - | PB14 |
| 19 | - | - | PB13 |
| 20 | - | - | PB12 |
USB connector properties
| Name | USB |
| Reference | None |
| Type | USB Micro |
USB connector pins
| # | Name | Function | Connected to |
|---|---|---|---|
| 1 | - | VCC | +5V rail |
| 2 | - | D- | PA11 |
| 3 | - | D+ | PA12 |
| 4 | - | ID | N.C. |
| 5 | - | GND | Ground plane |