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  • STM32F103ZET6 - CZ miniSTM32F103ZE-EK

    CZ miniSTM32F103ZE-EK


    Board Name CZ miniSTM32F103ZE-EK
    Brand Unknown
    Origin AliExpress, China
    Microcontroller Part STM32F103ZET6
    Package LQFP144
    Core Cortex-M3
    FLASH 512KB
    SRAM 64KB
    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 Yes
    Connectivity Headers 2x 2x25 male dupont (2.54mm)
    Specific NRF24L01 (2x4 female dupont (2.54mm))
    TFT (2x16 male dupont (2.54mm))
    SD-card connector
    OLED (Unpopulated (2.54mm))
    Debug JTAG (20-pin IDC)
    USB Mini
    Mini (Serial)
    I/O LEDs Power LED (Pwr, +3.3V)
    User LED (DS2, PE2, sink)
    User LED (DS3, PE0, sink)
    Buttons, switches and jumpers Reset button (RESET, NRST, active low)
    2-way jumper (BOOT0)
    2-way jumper (BOOT1)
    User button (K1, PB10, active low)
    User button (K2, PB11, active low)
    Switch (Pwr +5V USB and power jack)
    Other devices Prolific PL-2303HX
    PCB Colour Blue
    Size 108mm x 65mm
    Mounting 4x mounting hole (M3)
    • 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.


    CZ miniSTM32F103ZE-EK

    CZ miniSTM32F103ZE-EK Top view

    CZ miniSTM32F103ZE-EK Bottom view

    Header 1

    Pin Connected to
    5V +5V rail
    GND Ground plane
    B11 PB11
    G1 PG1
    B10 PB10
    F15 PF15
    G0 PG0
    F13 PF13
    F14 PF14
    F11 PF11
    F12 PF12
    B0 PB0
    B1 PB1
    C4 PC4
    C5 PC5
    A3 PA3
    A4 PA4
    A1 PA1
    A2 PA2
    A0 PA0
    3V3 +3.3V rail
    C3 PC3
    C0 PC0
    C1 PC1
    F9 PF9
    F10 PF10
    F7 PF7
    F8 PF8
    F5 PF5
    F6 PF6
    F3 PF3
    F4 PF4
    F1 PF1
    F2 PF2
    C15 PC15
    F0 PF0
    C13 PC13
    C14 PC14
    E5 PE5
    E6 PE6
    E3 PE3
    E4 PE4
    3V3 +3.3V rail
    3V3 +3.3V rail
    GND Ground plane
    GND Ground plane

    Header 2

    Pin Connected to
    GND Ground plane
    GND Ground plane
    3V3 +3.3V rail
    3V3 +3.3V rail
    E0 PE0
    E2 PE2
    B8 PB8
    B9 PB9
    B4 PB4
    B5 PB5
    G15 PG15
    B3 PB3
    G13 PG13
    G14 PG14
    G11 PG11
    G12 PG12
    G9 PG9
    G10 PG10
    D3 PD3
    D6 PD6
    C12 PC12
    D2 PD2
    C10 PC10
    C11 PC11
    A14 PA14
    A15 PA15
    A12 PA12
    A13 PA13
    A10 PA10
    A11 PA11
    A8 PA8
    A9 PA9
    C8 PC8
    C9 PC9
    C6 PC6
    C7 PC7
    G7 PG7
    G8 PG8
    G5 PG5
    G6 PG6
    G3 PG3
    G4 PG4
    D12 PD12
    G2 PG2
    B14 PB14
    B15 PB15
    B12 PB12
    B13 PB13
    GND Ground plane
    5V +5V rail


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

    USB (Serial)

    Pin Connected to
    VCC +5V rail
    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 +5V rail N.C. -
    20 Ground plane GND -

    SD-card connector

    Pin Connected to
    RSV N.C.
    CS PC11
    DI PD2
    VCC +3.3V rail
    SCLK PC12
    GND Ground plane
    DO PC8
    RSV N.C.
    CD N.C.
    BODY Ground plane


    Pin Connected to
    GND Ground plane
    3V3 +3.3V rail
    C2 PC2
    5V +5V rail
    D13 PD13
    B6 PB6
    A6 PA6
    A7 PA7
    B7 PB7
    A5 PA5
    D7 PD7
    D11 PD11
    D5 PD5
    D4 PD4
    D14 PD14
    D15 PD15
    D0 PD0
    D1 PD1
    E7 PE7
    E8 PE8
    E9 PE9
    E10 PE10
    E11 PE11
    E12 PE12
    E13 PE13
    E14 PE14
    E15 PE15
    D8 PD8
    D9 PD9
    D10 PD10
    E1 PE1
    GND Ground plane


    Pin Connected to
    GND Ground plane
    VCC +3.3V rail
    CE PE4
    CSN PE2
    SCK PB3
    MOSI PB5
    MISO PB4
    IRQ PC13


    Pin Connected to
    E6 PE6
    E5 PE5
    E4 PE4
    E3 PE3
    3V3 +3.3V rail
    GND Ground plane