2 layers297.2 × 180.3 mm
2 layers137.5 × 75.1 mm
Omega ramexpansion
msx-solis/O4MEGA164Mb expansion for OMEGA MSX2+ HOME COMPUTER
- Size
- 137.5 × 75.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 21
- Nets
- 46
- Pads
- 294
- Tracks, vias
- 1,525, 107
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 4 Jun 2020
- Updated
- 17 Jan 2022
Overview
Omega ramexpansion is an open-source printed circuit board by msx-solis, from the msx-solis/O4MEGA repository on GitHub. It is a 2-layer board of 137.5 × 75.1 mm with 21 parts on 46 nets, routed with 1,525 tracks and 107 vias.
It is built around the 74HCT08D. Its parts include 8 capacitors, 8 ICs and 1 connector.
Main components
1README
README.mdo4Mega v1.
4Mb expansion for OMEGA MSX2+ HOME COMPUTER. Here is my first board design to expand OMEGA Home Computer from 1Mb to 4Mb of static RAM. This design is optimized to manufacture the pcb with the toner transfer technique.
Parts
21| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 0.1 uF | Capacitors_THT:C_Disc_D7.5mm_W2.5mm_P5.00mm | C1, C2, C3, C4, C5, C6, C7, C8 |
| 7 | SRAM_512Ko | Housings_DIP:DIP-32_W15.24mm_LongPads | U1, U2, U3, U4, U5, U6, U7 |
| 1 | 74HCT08 | Housings_DIP:DIP-14_W7.62mm_LongPads | U8 |
| 1 | CONN_02X20 | Socket_Strips:Socket_Strip_Straight_2x20_Pitch2.54mm | J1 |
| 1 | LOGO | omega-ramexpansion_iron:MSXmakers19x8 | G*** |
| 1 | LOGO | omega-ramexpansion_iron:Symbol_Omega-Logo_SilkscreenTop | G*** |
| 1 | Symbol_GNU-Logo_SilkscreenTop | omega-ramexpansion_iron:Symbol_GNU-Logo_SilkscreenTop | ~ |
The 20 most common of 21 parts.
Questions
How big is the Omega ramexpansion PCB?
It measures 137.5 × 75.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Omega ramexpansion use?
21 parts, built around the 74HCT08D. 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 Omega ramexpansion KiCad files?
From the msx-solis/O4MEGA repository on GitHub, at the commit this page was made from: the board is omega-ramexpansion_iron/omega-ramexpansion.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Omega ramexpansion design in my own project?
Its repository states no licence, so its author keeps all rights: ask msx-solis before reusing the design.
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