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  • STM32F103RCT6 - Euse Board

    Euse Board


    Board Name Euse Board
    Brand Euse
    Origin AliExpress, China
    Microcontroller Part STM32F103RCT6
    Package LQFP64
    Core Cortex-M3
    FLASH 256KB
    SRAM 48KB
    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 Holtek Semiconductor Inc.
    Regulator part number HT7533-1
    Regulator package SOT23-5
    Output +3.3V @ 100mA
    Battery holder Yes
    Connectivity Headers 2x 2x14 male dupont (2.54mm)
    Specific Serial (Unpopulated)
    Debug SWD (1x4 female dupont (2.54))
    JTAG (20-pin IDC))
    USB Mini
    I/O LEDs Power LED (PD1, +5V)
    User LED (LD1, PB10, sink)
    Buttons, switches and jumpers Reset button (RESET, NRST, active low)
    DIP-Switch (BOOT0, BOOT1)
    2-way jumper (J7, VBAT, +3.3V or battery)
    1-way jumper (LS1, Enable user LED)
    1-way jumper (US2, Enable USB D-)
    1-way jumper (US1, Enable USB D+)
    1-way jumper (MS1, Enable OSC_32_IN)
    1-way jumper (MS2, Enable OSC_32_OUT)
    1-way jumper (MS3, Enable OSC_IN)
    1-way jumper (MS4, Enable OSC_OUT)
    Other devices None
    PCB Colour Black
    Size 68mm x 54mm
    Mounting 4x mounting hole (M2)
    • 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.


    Euse Board

    Euse Board Top view

    Euse Board Bottom view

    Header 1

    Pin Connected to
    PA6 PA6
    PA7 PA7
    PA5 PA5
    PA4 PA4
    PC14 PC14
    PC15 PC15
    PA15 PA15
    PD2 PD2
    PB7 PB7
    PB6 PB6
    PB3 PB3
    PB4 PB4
    PA0 PA0
    PA1 PA1
    PA2 PA2
    PA3 PA3
    PA13 PA13
    PA14 PA14
    PB0 PB0
    PB5 PB5
    PA11 PA11
    PA12 PA12
    PA9 PA9
    PA10 PA10
    PB1 PB1
    PC13 PC13
    5V +5V rail
    GND Ground plane

    Header 2

    Pin Connected to
    GND Ground plane
    3V3 +3.3V rail
    NC N.C.
    PD1 PD1
    PD0 PD0
    PB2 PB2
    PA8 PA8
    PC12 PC12
    PC11 PC11
    PC10 PC10
    PC9 PC9
    PC8 PC8
    PC7 PC7
    PC6 PC6
    PC5 PC5
    PC4 PC4
    PC3 PC3
    PC2 PC2
    PC1 PC1
    PC0 PC0
    PB15 PB15
    PB14 PB14
    PB13 PB13
    PB12 PB12
    PB11 PB11
    PB10 PB10
    PB9 PB9
    PB8 PB8


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


    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 -
    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 N.C. N.C. -
    20 Ground plane GND -


    Pin Connected to
    3V3 +3.3V rail
    SWDIO PA13
    SWCLK PA14
    GND Ground plane


    Pin Connected to
    3V3 +3.3V rail
    TX PA9
    RX PA10
    GND Ground plane