Black Pill

STM32F103C8T6


Board

NameBlack Pill
PartUnknown
BrandUnknown
OriginChina

Microcontroller

PartSTM32F103C8T6
ManufacturerST-Microelectronics
CoreArm Cortex-M3
Max. Clock Speed72MHz
PackageLQFP 48 pins

Internal memories

FLASH64KiB
SRAM20KiB

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

ManufacturerNanjing Micro One Electronics Inc.
PartME6211 (S2QA / S2QC / S2QK / S2RD)
PackageSOT23-5 5 pins
Input+2V to +6V
Output+3.3V @ 180mA
DatasheetME6211.pdf

PCB

ColorBlack
Size (w x l)25mm x 57mm
MountingBreadboard

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.
  • Trivia: This board is an improved version of the Blue Pill. The name of this board is derived from it.

Pictures

Black Pill: Perspective view
Black Pill: Perspective view
Black Pill: Top view
Black Pill: Top view
Black Pill: Bottom view
Black Pill: Bottom view

Inputs & outputs


Reset button

Name RST
Reference -
Type Button
Connected to NRST
Mode Active low

BOOT0 jumper

Name -
Reference -
Type 2-way jumper
Connected to BOOT0
Mode N.A.

BOOT1 jumper

Name -
Reference -
Type 2-way jumper
Connected to PB2
Mode N.A.

Power LED

Name -
Reference -
Type LED
Connected to +3.3V rail
Mode N.A.

User LED

Name -
Reference -
Type LED
Connected to PB12
Mode Sink

Connectors & headers


Header 1 properties

Name Unknown
Reference None
Type pin header (2.54mm, 17x1, male)

Header 1 pins

# Name Function Connected to
1 GND - Ground plane
2 V3.3 - +3.3V rail
3 B7 - PB7
4 B6 - PB6
5 B5 - PB5
6 B4 - PB4
7 B3 - PB3
8 A15 - PA15
9 A12 - PA12
10 A11 - PA11
11 A10 - PA10
12 A9 - PA9
13 A8 - PA8
14 B15 - PB15
15 B14 - PB14
16 B13 - PB13
17 B12 - PB12

Header 2 properties

Name Unknown
Reference None
Type pin header (2.54mm, 17x1, male)

Header 2 pins

# Name Function Connected to
1 GND - Ground plane
2 B8 - PB8
3 B9 - PB9
4 C13 - PC13
5 RST - NRST
6 A0 - PA0
7 A1 - PA1
8 A2 - PA2
9 A3 - PA3
10 A4 - PA4
11 A5 - PA5
12 A6 - PA6
13 A7 - PA7
14 B0 - PB0
15 B1 - PB1
16 B10 - PB10
17 B11 - PB11

SWD header properties

Name Unknown
Reference None
Type pin header (2.54mm, 4x1, male)

SWD header pins

# Name Function Connected to
1 GND GND Ground plane
2 CLK SWCLK PA14
3 DIO SWDIO PA13
4 3V3 VCC +3.3V rail

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