2 layers488.9 × 30 mm
4 layers406 × 27.5 mm
Hexdump
brainsmoke/hexboard90quite a big hexdump display
- Size
- 406 × 27.5 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 70
- Nets
- 195
- Pads
- 628
- Tracks, vias
- 2,604, 187
- Pours
- 11
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 18 Dec 2019
- Updated
- 20 Jun 2025
Overview
Hexdump is an open-source printed circuit board by brainsmoke, from the brainsmoke/hexboard repository on GitHub. It is a 4-layer board of 406 × 27.5 mm with 70 parts on 195 nets, routed with 2,604 tracks and 187 vias.
It is built around the STM32F030F4P6 and TC7258E. Its parts include 28 ICs, 25 capacitors, 15 resistors and 1 connector. It belongs with the lEDs and displays boards and the STM32 and NXP (LPC, Kinetis, i.MX RT) boards of this library.
Main components
2
STM32F030F4P6
TSSOP-20-40℃~+85℃ 12bit 15 16KB 2.4V~3.6V 32 Bit 48MHz 4KB ARM Cortex-M0 Built-in FLASH TSSOP-20 Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
TC7258E
SOP-16-40℃~+85℃ 1mA Built-in auto blanking、LED fault crosstalk elimination SOP-16 Digital Tube Drivers ROHSShenzhen Fuman ElecLED Drivers
README
README.mdHexdump display
Parts
70| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | Houkem-5421-BSG | footprints:2-digit 14 segment display 25.2x21 mm | U2, U3, U5, U6, U8, U9, U11, U12, U14, U15, U17, U18, U20, U21, U23, U24 |
| 15 | R | footprints:R0603 | R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15 |
| 14 | C | footprints:C0603 | C1, C2, C3, C4, C5, C6, C7, C8, C9, C10, C11, C12, C13, C25 |
| 11 | C | footprints:C1210_polar | C14, C15, C16, C17, C18, C19, C20, C21, C22, C23, C24 |
| 8 | ICN3038 | footprints:SSOP-24_3.9x8.7mm_P0.635mm | U1, U4, U7, U10, U13, U16, U19, U22 |
| 2 | TC7258E | footprints:SOP-16-1.27mm | U25, U26 |
| 1 | AP2204K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U27 |
| 1 | Conn_01x07_Female | Connector_PinSocket_2.54mm:header-1x7 | J1 |
| 1 | STM32F030F4 | footprints:tssop20 | IC1 |
| 1 | SolderJumper_2_Bridged | footprints:JMP0603 | JP1 |
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Questions
How big is the Hexdump PCB?
It measures 406 × 27.5 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Hexdump use?
70 parts, built around the STM32F030F4P6 and TC7258E. 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 Hexdump KiCad files?
From the brainsmoke/hexboard repository on GitHub, at the commit this page was made from: the board is pcb/horiz/hexdump.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Hexdump design in my own project?
Its repository states no licence, so its author keeps all rights: ask brainsmoke before reusing the design.