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4 layers20.4 × 28.5 mmSTM32F042-Mini, the printed circuit board in 3D

A Small Breakout for the STM32F042, suitable for small keyboards.

Size
20.4 × 28.5 mm
Copper layers
4
Thickness
1.6 mm
Parts
22
Nets
30
Pads
107
Tracks, vias
287, 37
Pours
3
Routed
Yes
KiCad
KiCad 7 (file 20221018)
Created
12 Jan 2024
Updated
12 Jan 2024

Overview

STM32F042-Mini is an open-source printed circuit board by engstad, from the engstad/STM32F042-Mini repository on GitHub. It is a 4-layer board of 20.4 × 28.5 mm with 22 parts on 30 nets, routed with 287 tracks and 37 vias.

It is built around the TLV75733PDBVR-MS. Its parts include 9 capacitors, 6 connectors, 2 resistors, 2 ICs and 2 switches. It belongs with the STM32 boards of this library.

Main components

1

Parts

22
QtyValueFootprintReferences
4100nCapacitor_SMD:C_0603_1608MetricC2, C3, C6, C7
31uCapacitor_SMD:C_0603_1608MetricC4, C9, C10
25K1Resistor_SMD:R_0603_1608MetricR1, R2
110nCapacitor_SMD:C_0603_1608MetricC5
14u7Capacitor_SMD:C_0603_1608MetricC1
1BOOT0Engstad:tactile-switch-evpay-34x29mmSW2
1BUS_PWRConnector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalJ3
1CORTEX-JTAGConnector_PinHeader_1.27mm:PinHeader_2x05_P1.27mm_VerticalP1
1FerriteBead_SmallInductor_SMD:L_0805_2012MetricFB1
1LPINSConnector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_VerticalJ1
1RPINSConnector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_VerticalJ2
1RSTEngstad:tactile-switch-evpay-34x29mmSW1
1STM32F042F6PxPackage_SO:TSSOP-20_4.4x6.5mm_P0.65mmU1
1SWDConnector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalJ5
1TLV75733PDBVR‎Package_TO_SOT_SMD:SOT-23-5U2
1USB_C_Receptacle_USB2.0Connector_USB:USB_C_Receptacle_GCT_USB4085J4

Questions

How big is the STM32F042-Mini PCB?

It measures 20.4 × 28.5 mm and has 4 copper layers, 1.6 mm thick.

What parts does the STM32F042-Mini use?

22 parts, built around the TLV75733PDBVR-MS. 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 STM32F042-Mini KiCad files?

From the engstad/STM32F042-Mini repository on GitHub, at the commit this page was made from: the board is STM32F042-Mini.kicad_pcb and its schematic STM32F042-Mini.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the STM32F042-Mini design in my own project?

Its repository states no licence, so its author keeps all rights: ask engstad before reusing the design.

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