2 layers68 × 40 mm
Stm32-io extend
hardenedlinux/cheap-pcb
Cheap PCB: Better understanding the current status of hardware supply chain
44 parts170CC0-1.0
2 layers
STM chip
thenu98-ops/STM-chip- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 26
- Nets
- 45
- Pads
- 113
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 21 Jul 2025
- Updated
- 21 Jul 2025
Overview
STM chip is an open-source printed circuit board by thenu98-ops, from the thenu98-ops/STM-chip repository on GitHub. It is a 2-layer board with 26 parts on 45 nets.
It is built around the STM32F103C8T6 and AMS1117-3.3. Its parts include 13 capacitors, 4 resistors, 3 connectors, 2 ICs and 1 diode. It belongs with the STM32 boards of this library.
Main components
2
STM32F103C8T6
LQFP-48(7x7)-40℃~+85℃ 12bit 20KB 2V~3.6V 32 Bit 37 64KB 72MHz ARM Cortex-M3 Built-in FLASH LQFP-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
Parts
26| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 100n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2, C3 |
| 3 | 1k5 | Resistor_SMD:R_0805_2012Metric | R2, R3, R4 |
| 2 | 100n | Capacitor_SMD:C_0805_2012Metric | C4, C9 |
| 2 | 10p | Capacitor_SMD:C_0805_2012Metric | C10, C11 |
| 2 | 1u | Capacitor_SMD:C_0805_2012Metric | C7, C8 |
| 2 | 22u | Capacitor_SMD:C_0805_2012Metric | C12, C13 |
| 2 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Horizontal | J1, J3 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric | R1 |
| 1 | 10n | Capacitor_SMD:C_0805_2012Metric | C6 |
| 1 | 10u | Capacitor_SMD:C_0805_2012Metric | C5 |
| 1 | 120R | Inductor_SMD:L_0603_1608Metric | FB1 |
| 1 | 16MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | LED | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | STM32F103C8T6 | Package_QFP:LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | SW_SPDT | Button_Switch_THT:SW_Lever_1P2T_NKK_GW12LxH | SW1 |
| 1 | USB_C_Plug_USB2.0 | Connector_USB:USB_B_Amphenol_MUSB-D511_Vertical_Rugged | P1 |
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Questions
What parts does the STM chip use?
26 parts, built around the STM32F103C8T6 and AMS1117-3.3. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the STM chip KiCad files?
From the thenu98-ops/STM-chip repository on GitHub, at the commit this page was made from: the board is STM chip.kicad_pcb and its schematic STM chip.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the STM chip design in my own project?
Its repository states no licence, so its author keeps all rights: ask thenu98-ops before reusing the design.