2 layers100 × 58 mm Rom module, the printed circuit board in 3D

Rom module

Size: 100 × 58 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 8
Nets: 51
Pads: 140
Tracks, vias: 496, 140
Routed: Yes
KiCad: KiCad 7 (file 20221018)
Created: 28 Jan 2024
Updated: 2 Feb 2024

Overview

Rom module is an open-source printed circuit board by emm312, from the emm312/pcb-cpu repository on GitHub. It is a 2-layer board of 100 × 58 mm with 8 parts on 51 nets, routed with 496 tracks and 140 vias.

It is built around the 74HC173D, 74HC283P-E and 74LS157PC. Its parts include 6 ICs and 1 connector.

Main components

Parts

Qty	Value	Footprint	References
2	74HC173	Package_DIP:DIP-16_W7.62mm	U1, U2
2	74HC283	Package_DIP:DIP-16_W7.62mm	U3, U4
2	74LS157	Package_DIP:DIP-16_W7.62mm	U5, U6
1	Conn_01x20_Pin	Connector_PinHeader_2.54mm:PinHeader_1x20_P2.54mm_Horizontal	J1
1	~	Package_DIP:DIP-24_W7.62mm	AT28C1

Questions

How big is the Rom module PCB?

It measures 100 × 58 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Rom module use?

8 parts, built around the 74HC173D, 74HC283P-E and 74LS157PC. 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 Rom module KiCad files?

From the emm312/pcb-cpu repository on GitHub, at the commit this page was made from: the board is rom-module/rom-module.kicad_pcb and its schematic bus/bus.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Rom module design in my own project?

Its repository states no licence, so its author keeps all rights: ask emm312 before reusing the design.

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/emm312-pcb-cpu-rom-module" title="Rom module in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/emm312-pcb-cpu-rom-module.jpg" alt="Rom module" width="1200" height="900">

A picture that opens the board, for a README

[![Rom module](https://pcbkit.io/embed/boards/emm312-pcb-cpu-rom-module.jpg?size=s)](https://pcbkit.io/boards/emm312-pcb-cpu-rom-module)

Source

Repository: emm312/pcb-cpu
Board file: rom-module/rom-module.kicad_pcb
Commit: b8603cb
Licence: Not stated

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