最小系统 (Minimal System) Board
STM32F105RCT6
Board
Name | 最小系统 (Minimal System) Board |
Part | Unknown |
Brand | Unknown |
Origin | China |
Microcontroller
Part | STM32F105RCT6 |
Manufacturer | ST-Microelectronics |
Core | Arm Cortex-M3 |
Max. Clock Speed | 72MHz |
Package | UFQFPN 64 pins |
Internal memories
FLASH | 256KiB |
SRAM | 64KiB |
Oscillators
HSI | 8MHz |
LSI | 40kHz |
HSE | 8MHz |
LSE | 32.768kHz |
Power
Sources | Any +3.3V pin (+3.3V) Any +5V pin (+5V) USB connector (+5V) |
VDDA pin | No |
VSSA pin | No |
VREF- pin | No |
VREF+ pin | No |
Backup battery | None |
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 | Green |
Size (w x l) | 50mm x 50mm |
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.
Pictures
Resources
Inputs
Devices
None
Inputs & outputs
Reset button
Name | 复位 |
Reference | S1 |
Type | Button |
Connected to | NRST |
Mode | Active low |
BOOT0 jumper
Name | - |
Reference | - |
Type | 1-way jumper |
Connected to | BOOT0 |
Mode | Active low |
BOOT1 jumper
Name | - |
Reference | - |
Type | 1-way jumper |
Connected to | PB2 |
Mode | Active low |
Power LED
Name | - |
Reference | D1 |
Type | LED |
Connected to | +3.3V rail |
Mode | N.A. |
User LED
Name | - |
Reference | D2 |
Type | LED |
Connected to | PD2 |
Mode | Sink |
Connectors & headers
Header 1 properties
Name | Unknown |
Reference | P5 |
Type | Pin header (2.54mm, 14x2, male) |
Header 1 pins
# | Name | Function | Connected to |
---|---|---|---|
1 | C12 | - | PC12 |
2 | C11 | - | PC11 |
3 | C10 | - | PC10 |
4 | A15 | - | PA15 |
5 | A14 | - | PA14 |
6 | A13 | - | PA13 |
7 | A12 | - | PA12 |
8 | A11 | - | PA11 |
9 | A10 | - | PA10 |
10 | A9 | - | PA9 |
11 | A8 | - | PA8 |
12 | C9 | - | PC9 |
13 | C8 | - | PC8 |
14 | C7 | - | PC7 |
15 | C6 | - | PC6 |
16 | B15 | - | PB15 |
17 | B14 | - | PB14 |
18 | B13 | - | PB13 |
19 | B12 | - | PB12 |
20 | B11 | - | PB11 |
21 | B10 | - | PB10 |
22 | BT1 | - | PB2 |
23 | B1 | - | PB1 |
24 | B0 | - | PB0 |
25 | GND | - | Ground plane |
26 | GND | - | Ground plane |
Header 2 properties
Name | Unknown |
Reference | P8 |
Type | Pin header (2.54mm, 14x2, male) |
Header 2 pins
# | Name | Function | Connected to |
---|---|---|---|
1 | B3 | - | PB3 |
2 | B4 | - | PB4 |
3 | B5 | - | PB5 |
4 | B6 | - | PB6 |
5 | B7 | - | PB7 |
6 | B8 | - | PB8 |
7 | B9 | - | PB9 |
8 | C13 | - | PC13 |
9 | C0 | - | PC0 |
10 | C1 | - | PC1 |
11 | C2 | - | PC2 |
12 | C3 | - | PC3 |
13 | A0 | - | PA0 |
14 | A1 | - | PA1 |
15 | A2 | - | PA2 |
16 | A3 | - | PA3 |
17 | A4 | - | PA4 |
18 | A5 | - | PA5 |
19 | A6 | - | PA6 |
20 | A7 | - | PA7 |
21 | C4 | - | PC4 |
22 | C5 | - | PC5 |
23 | D2 | - | PD2 |
24 | GND | - | Ground plane |
25 | 5V | - | +5V rail |
26 | GND | - | Ground plane |
USB connector properties
Name | Unknown |
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 |
SWD header properties
Name | Unknown |
Reference | None |
Type | Pin header (2.54mm, 4x1, male) |
SWD header pins
# | Name | Function | Connected to |
---|---|---|---|
1 | 3V3 | VCC | +3.3V rail |
2 | DIO | SWDIO | PA13 |
3 | CLK | SWCLK | PA14 |
4 | GND | GND | Ground plane |
Serial Header 1 properties
Name | Unknown |
Reference | None |
Type | Pin header (2.54mm, 3x1, male) |
Serial Header 1 pins
# | Name | Function | Connected to |
---|---|---|---|
1 | A9 | - | PA9 |
2 | A10 | - | PA10 |
3 | GND | - | Ground plane |
Serial Header 2 properties
Name | Unknown |
Reference | None |
Type | Pin header (2.54mm, 3x1, male) |
Serial Header 2 pins
# | Name | Function | Connected to |
---|---|---|---|
1 | B10 | - | PB10 |
2 | B11 | - | PB11 |
3 | GND | - | Ground plane |
Serial Header 3 properties
Name | Unknown |
Reference | None |
Type | Pin header (2.54mm, 3x1, male) |
Serial Header 3 pins
# | Name | Function | Connected to |
---|---|---|---|
1 | A2 | - | PA2 |
2 | A3 | - | PA3 |
3 | GND | - | Ground plane |
+3.3V Power Header properties
Name | Unknown |
Reference | None |
Type | Pin header (2.54mm, 4x2, male) |
+3.3V Power Header pins
# | Name | Function | Connected to |
---|---|---|---|
1 | 3V3 | - | +3.3V rail |
2 | GND | - | Ground plane |
3 | 3V3 | - | +3.3V rail |
4 | GND | - | Ground plane |
5 | 3V3 | - | +3.3V rail |
6 | GND | - | Ground plane |
7 | 3V3 | - | +3.3V rail |
8 | GND | - | Ground plane |
+5V Power Header properties
Name | Unknown |
Reference | None |
Type | Pin header (2.54mm, 4x1, male) |
+5V Power Header pins
# | Name | Function | Connected to |
---|---|---|---|
1 | 5V | - | +5V rail |
2 | 5V | - | +5V rail |
3 | 5V | - | +5V rail |
4 | 5V | - | +5V rail |