HardLabs

ROM

Synthron·S65·Hardware/modules/ROM/ROM.kicad_pcb

ROM PCB layout, top view — open source board by Synthron

About the ROM PCB

ROM is an open source PCB design by Synthron, published on GitHub. It is a 4-layer board measuring 83.3 × 68.2 mm, with 10 components from 7 distinct parts.

Other key parts include the 74HC138, SST39SF040, 74HC00 and AS6C4008-55PCN. By type, the board carries 5 capacitors, 4 ICs and 1 connector.

It belongs with the retro computing designs in this gallery.

From the project

Yet another 8bit Retro Computer

Completely bloated, overkill and fully hackable!

- [x] Finish Hardware - Software - [ ] WozMon - [x] Implement Serial IO - [x] Implement Input Buffer - [ ] extended for block write - [ ] Kernel Functions - [ ] General SysCalls - [ ] Hardware Drivers - [x] RAM-Kernel - [x] Basic - [x] EhBasic - [ ] File System - [ ] Operating System - Hardware - [ ] order PCBs - [ ] order parts - [ ] solder together

Main components on the ROM

74HC138SST39SF04074HC00AS6C4008-55PCN

ROM bill of materials (BOM)

10 components, 7 distinct parts.

QtyPartRefs
1
74HC138
U1
1
SST39SF040
U2
1
74HC00
U3
1
AS6C4008-55PCN
U4
1
Bus_PCI_6502
J1
4
100n
C1, C2, C3, C4
1
10µ
C5

ROM design files

The KiCad project lives in the Synthron/S65 repository on GitHub; these links point at the commit this page was built from.

ROM: common questions

How big is the ROM PCB?

The ROM measures 83.3 × 68.2 mm, has 4 copper layers and is 2.6062 mm thick.

How many components are on the ROM?

10 components, from 7 distinct parts. The full bill of materials is listed on this page.

Where can I download the ROM design files?

From the Synthron/S65 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the ROM design in my own project?

The repository has no license, so all rights stay with Synthron. Use it as a reference, and ask the author before reusing the design.

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