6 layers38.5 × 33 mm Press CPU, the printed circuit board in 3D

Press CPU

Size: 38.5 × 33 mm
Copper layers: 6
Thickness: 1.5 mm
Parts: 104
Nets: 94
Pads: 360
Tracks, vias: 906, 130
Pours: 3
Routed: Yes
KiCad: KiCad 9.0 (file 20241229)
Created: 28 Apr 2025
Updated: 17 Oct 2025

Overview

Press CPU is an open-source printed circuit board by Alexandr-Filatov, from the Alexandr-Filatov/Press_CPU repository on GitHub. It is a 6-layer board of 38.5 × 33 mm with 104 parts on 94 nets, routed with 906 tracks and 130 vias.

It is built around the APM32F405RGT6, LMV321 and LM2594HVM-3.3, with the FM25W256-G, GSOT03C-E3-08 and CSTCE8M00G55A-R0 among its other parts. Its parts include 39 capacitors, 35 resistors, 11 diodes, 9 ICs and 3 connectors.

Main components

Project files

Show this board on your page

https://pcbkit.io/boards/Alexandr-Filatov/Press_CPU

The board's own page, for a message or a post.

Source

Repository: Alexandr-Filatov/Press_CPU
Board file: Press_CPU.kicad_pcb
Commit: 55d9139
Licence: Not stated

Parts

104

Qty	Value	Footprint	References
18	100n	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C1, C2, C12, C13, C33, C34, C35, C36, C46, C47, C51, C52, C53, C55, C56, C57 +2
15	1.8k	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R32, R35, R38, R41, R43, R45, R50, R52, R53, R55, R56, R58, R59, R61, R65
14	3.6k	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R34, R36, R37, R39, R42, R44, R46, R51, R54, R57, R60, R62, R63, R66
7	1n	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C37, C39, C40, C41, C43, C44, C45
6	LMV321	Package_TO_SOT_SMD:SOT-23-5_HandSoldering	U10, U11, U13, U14, U15, U16
5	GSOT03C-E3-08	Package_TO_SOT_SMD:SOT-23-3	D3, D8, D9, D10, D11
4	10u	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C17, C18, C22, C23
4	2.2u	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C6, C20, C21, C58
3	1k	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R1, R2, R6
2	1u	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C15, C54
2	56p	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C4, C10
2	BLM21AG102SN1D	Inductor_SMD:L_0805_2012Metric_Pad1.05x1.20mm_HandSolder	FB1, FB2
2	Conn_01x16	PLD_my:PLD16_2.0mm	J3, J4
2	Fuse_Small	Fuse:Fuse_0805_2012Metric_Pad1.15x1.40mm_HandSolder	F1, F2
2	~	LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder	D4, D7
1	100u	Capacitor_Tantalum_SMD:CP_EIA-3528-21_Kemet-B_HandSolder	C19
1	120	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R3
1	2-215079-0	TE_my:22150790	J2
1	2.2u	Inductor_SMD:L_1210_3225Metric_Pad1.42x2.65mm_HandSolder	L2
1	3.3k	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R64
1	4.7u	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C14
1	47u	Inductor_SMD:L_1812_4532Metric_Pad1.30x3.40mm_HandSolder	L1
1	750	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R4
1	APM32F405RGT6	Package_QFP:LQFP-64_10x10mm_P0.5mm	U1
1	CSTCE8M00G55A-R0	Crystal:Resonator_SMD_Murata_CSTxExxV-3Pin_3.0x1.1mm	Y1
1	D_Schottky_Small	Diode_SMD:D_SOD-323_HandSoldering	D6
1	FM25W256	Package_SO:SOIC-8_3.9x4.9mm_P1.27mm	U12
1	LM2594HVM-3.3	Package_SO:SOIC-8_3.9x4.9mm_P1.27mm	U2
1	MBRA320	Diode_SMD:D_SMA	D5
1	~	Package_SO:SOIC-8_3.9x4.9mm_P1.27mm	D1
1	~	Package_TO_SOT_SMD:SOT-23	D2

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Questions

How big is the Press CPU PCB?

It measures 38.5 × 33 mm and has 6 copper layers, 1.5 mm thick.

What parts does the Press CPU use?

104 parts, built around the APM32F405RGT6, LMV321, LM2594HVM-3.3 and FM25W256-G. 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 Press CPU KiCad files?

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

Can I use the Press CPU design in my own project?

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

Overview

Main components

APM32F405RGT6

LMV321

LM2594HVM-3.3

FM25W256-G

GSOT03C-E3-08

CSTCE8M00G55A-R0

MBRA320