STM32F103C8T6 - Blue Header

Blue Header

Overview

Board Name Blue Header
Brand Unknown
Origin AliExpress, China
Microcontroller Part STM32F103C8T6
Package LQFP48
Core Cortex-M3
FLASH 64KB
SRAM 20KB
Max. Clock Speed 72MHz
Crystals HSE (High Speed External) 8MHz
LSE (Low Speed External) 32.768kHz
Power Sources Any +3.3V pin (+3.3V)
Any +5V pin (+5V)
USB connector (+5V)
Regulator manufacturer Advanced Monolithic Systems Inc.
Regulator part number AMS1117
Regulator package SOT223
Output +3.3V @ 1000mA
Battery holder No
Connectivity Headers 2x 1x14 male dupont (2.54mm)
1x 1x8 male dupont (2.54mm)
Specific Serial (1x4 male dupont (2.54mm))
Power (2x3 male dupont (2.54mm))
Debug SWD (1x4 male dupont (2.54mm))
JTAG (20-pin IDC)
USB Mini
I/O LEDs Power LED (POW, +3.3V)
User LED (LED, PB8, sink)
Buttons, switches and jumpers Reset button (RST, NRST, active low)
1-way jumper (J6, BOOT0, active low)
Other devices None
PCB Colour Blue
Size 60mm x 34mm
Mounting None
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

Blue Header

Blue Header Top view

Blue Header Bottom view

Header 1

Pin Connected to
PA1 PA1
PA0 PA0
PC15 PC15
PC14 PC14
PC13 PC13
BAT VBAT
PB7 PB7
PB6 PB6
PB5 PB5
PB4 PB4
PB3 PB3
PB2 PB2
PB1 PB1
PB0 PB0

Header 2

Pin Connected to
PA15 PA15
PA14 PA14
PA13 PA13
PA12 PA12
PA11 PA11
PA10 PA10
PA9 PA9
PA8 PA8

Header 3

The lower main header as seen on the top view. Pins are listed in a clock-wise order.

Pin Connected to
PB15 PB15
PB14 PB14
PB13 PB13
PB12 PB12
PB11 PB11
PB10 PB10
PB9 PB9
PB8 PB8
PA7 PA7
PA6 PA6
PA5 PA5
PA4 PA4
PA3 PA3
PA2 PA2

USB

Pin Connected to
VCC +5V rail
D- PA11
D+ PA12
ID N.C.
GND Ground plane

SWD

Pin Connected to
3V3 +3.3V rail
DIO PA13
CLK PA14
GND Ground plane

JTAG

Pin Connected to JTAG SWD
1 +3.3V rail VCC -
2 +3.3V rail VCC -
3 PB4 TRST -
4 Ground plane GND -
5 PA15 TDI -
6 Ground plane GND -
7 PA13 TMS SWDIO
8 Ground plane GND -
9 PA14 TCLK SWCLK
10 Ground plane GND -
11 N.C. RTCK -
12 Ground plane GND -
13 PB3 TDO SWO
14 Ground plane GND -
15 NRST RESET -
16 Ground plane GND -
17 N.C. N.C. -
18 Ground plane GND -
19 +5V rail N.C. -
20 Ground plane GND -

Serial

Pin Connected to
+5V +5V rail
GND Ground plane
RXD PA10
TXD PA9

Power

Pin Connected to
5V +5V rail
5V +5V rail
GND Ground plane
GND Ground plane
3V3 +3.3V rail
3V3 +3.3V rail