最小系统 (Minimal System) Board

STM32F105RCT6


Board

Name最小系统 (Minimal System) Board
PartUnknown
BrandUnknown
OriginChina

Microcontroller

PartSTM32F105RCT6
ManufacturerST-Microelectronics
CoreArm Cortex-M3
Max. Clock Speed72MHz
PackageUFQFPN 64 pins

Internal memories

FLASH256KiB
SRAM64KiB

Oscillators

HSI8MHz
LSI40kHz
HSE8MHz
LSE32.768kHz

Power

Sources
Any +3.3V pin (+3.3V)
Any +5V pin (+5V)
USB connector (+5V)
VDDA pinNo
VSSA pinNo
VREF- pinNo
VREF+ pinNo
Backup batteryNone

Regulator

ManufacturerAdvanced Monolithic Systems Inc.
PartAMS1117 (AMS1117)
PackageSOT223 3 pins
Input+4.6V to +15V
Output+3.3V @ 1A
DatasheetAMS1117.pdf

PCB

ColorGreen
Size (w x l)50mm x 50mm
Mounting4x 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

最小系统 (Minimal System) Board: Perspective view
最小系统 (Minimal System) Board: Perspective view
最小系统 (Minimal System) Board: Top view
最小系统 (Minimal System) Board: Top view
最小系统 (Minimal System) Board: Bottom view
最小系统 (Minimal System) Board: Bottom view

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