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STM32F103CBU6 on a board, in 3D

STM32F103CBU6

STMicroelectronics

-40℃~+85℃ 128KB 12bit 20KB 2V~3.6V 32 Bit 37 72MHz ARM Cortex-M3 Built-in FLASH UFQFPN-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHS

Extended
DatasheetJLCPCBLCSCst/STM32F103CBU6
Category
Microcontrollers (MCU, MPU, SOC)
Package
UFQFPN-48(7x7)
Pins
49

Overview

The STM32F103CBU6 is a microcontroller made by STMicroelectronics in a UFQFPN-48(7x7) package with 49 pins. -40℃~+85℃ 128KB 12bit 20KB 2V~3.6V 32 Bit 37 72MHz ARM Cortex-M3 Built-in FLASH UFQFPN-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHS.

PCBKit's library has its KiCad symbol (MCU_ST_STM32F1:STM32F103CBUx, from KiCad's library) and its footprint (Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.6x5.6mm, from KiCad's library), ready for a KiCad board. 83 are in stock at JLCPCB (part C967640). 6 open-source boards in 6 repositories on GitHub use it.

Symbol

VBAT1PC132PC143PC154PD05PD16NRST7VSSA8VDDA9PA010PA111PA212PA313PA414PA515PA616PA717PB018PB119PB220PB1021PB1122VSS23VDD24PB1225PB1326PB1427PB1528PA829PA930PA1031PA1132PA1233PA1334VDD36PA1437PA1538PB339PB440PB541PB642PB743BOOT044PB845PB946VDD48
MCU_ST_STM32F1:STM32F103CBUxFrom KiCad's library

Footprint

49
Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.6x5.6mmFrom KiCad's library

Parameters

11
ADC (Bit)
12bit
CPU Core
ARM Cortex-M3
CPU Maximum Speed
72MHz
Core Size
32 Bit
Number of I/O
37
Operating Temperature
-40℃~+85℃
Oscillator Type
Built-in
Program Memory Type
FLASH
Program Storage Size
128KB
RAM Size
20KB
Voltage - Supply
2V~3.6V

Order codes

2

Pinout

49
The pins of the STM32F103CBU6
PinNameType
1VBATPower in
2PC13Input/output
3PC14Input/output
4PC15Input/output
5PD0Input/output
6PD1Input/output
7NRSTInput
8VSSAPower in
9VDDAPower in
10PA0Input/output
11PA1Input/output
12PA2Input/output
13PA3Input/output
14PA4Input/output
15PA5Input/output
16PA6Input/output
17PA7Input/output
18PB0Input/output
19PB1Input/output
20PB2Input/output
21PB10Input/output
22PB11Input/output
23VSSPower in
24VDDPower in
25PB12Input/output
26PB13Input/output
27PB14Input/output
28PB15Input/output
29PA8Input/output
30PA9Input/output
31PA10Input/output
32PA11Input/output
33PA12Input/output
34PA13Input/output
35VSSPassive
36VDDPower in
37PA14Input/output
38PA15Input/output
39PB3Input/output
40PB4Input/output
41PB5Input/output
42PB6Input/output
43PB7Input/output
44BOOT0Input
45PB8Input/output
46PB9Input/output
47VSSPassive
48VDDPower in
49VSSPassive

Open-source boards using it

All 6
  • 2 layers29 × 12 mmUbmp v1, the printed circuit board in 3D

    Ubmp v1

    korken89/micro-bmp

    A small Black Magic Probe based on the pinout of the STLink V2 support firmware

    25 parts37
  • 2 layers37 × 46 mmAmp panel, the printed circuit board in 3D

    Amp panel

    adamgreig/amp

    A clone of the wonderful Black Magic Probe but in KiCAD and with a few small hardware tweaks.

    78 parts2
  • 4 layers76 × 51.5 mmFlight stick, the printed circuit board in 3D

    Flight stick

    hpvdt/Falcon_flight_stick

    Flight Stick HW and SW files for the Falcon Aircraft

    60 parts1
  • 6 layers36.8 × 16.4 mmIntegrated Debugger, the printed circuit board in 3D

    Integrated Debugger

    PicoballoonLabs/Debug-Boards

    Hardware designs for the integrated debug probe, debug adapter, flex debug cables and RF VNA calibrator

    72 parts1MIT
  • 6 layers60.6 × 100 mmCpuAddOn, the printed circuit board in 3D

    CpuAddOn

    logisim-evolution/GECKO5Education

    Openhardware educational platform based on the ideas of the ulx3s and Gecko4Education

    141 parts18MIT

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A picture
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A picture that opens the part, for a README
[![STM32F103CBU6](https://pcbkit.io/embed/parts/st/STM32F103CBU6.jpg?size=s)](https://pcbkit.io/parts/st/STM32F103CBU6)

Questions

Is there a KiCad symbol and footprint for the STM32F103CBU6?

Yes. The symbol is MCU_ST_STM32F1:STM32F103CBUx and the footprint Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.6x5.6mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the STM32F103CBU6?

UFQFPN-48(7x7), with 49 pins. Its footprint is drawn on this page.

Where is the STM32F103CBU6 datasheet?

STMicroelectronics publishes it: the Datasheet link on this page opens it.

Where can I order the STM32F103CBU6?

JLCPCB lists it as part C967640, with 83 in stock; the sellers' links on this page open their listings.

What can replace the STM32F103CBU6?

Parts like it in the library: the STM32G431CBU6 by STMicroelectronics, the STM32F401CCU6 by STMicroelectronics, the STM32F411CCU6 by STMicroelectronics and the STM32F411CEU6 by STMicroelectronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the STM32F103CBU6?

6 boards in 6 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8