PS1 PU22 8MB mod
About the PS1 PU22 8MB mod PCB
PS1 PU22 8MB mod is an open source PCB design by hkzlab, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 104.6 × 39.1 mm, with 9 components from 3 distinct parts.
By type, the board carries 4 ICs, 4 capacitors and 1 connector.
From the project
A daughterboard to install 8MB of addressable RAM to a PU-22 based PS1
Any use of this project is under your own responsibility. You will be responsible of checking the correct construction and functionality of your board. By using this project You will agree that I cannot be held responsible if it will destroy any of your devices, damage your computer, burn down your house or whatever.
This daughter board replaces the single main RAM IC on your PU-22 motherboard with 4 2Mx8 ICs, shuffles some address lines and provides your PlayStation with 8MB of addressable memory.
PS1 PU22 8MB mod bill of materials (BOM)
9 components, 3 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | ~ | SOP-28_DRAM | U1, U2, U3, U4 |
| 1 | MOBO | SOJ70_castellated | J1 |
| 4 | 100nF | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C2, C3, C4 |
PS1 PU22 8MB mod design files
The KiCad project lives in the hkzlab/PS1_PU22_8MB_mod repository on GitHub; these links point at the commit this page was built from.
- LayoutPU22_ram_mod.kicad_pcb
- SchematicPU22_ram_mod.kicad_sch
PS1 PU22 8MB mod: common questions
How big is the PS1 PU22 8MB mod PCB?
The PS1 PU22 8MB mod measures 104.6 × 39.1 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the PS1 PU22 8MB mod?
9 components, from 3 distinct parts. The full bill of materials is listed on this page.
Where can I download the PS1 PU22 8MB mod design files?
From the hkzlab/PS1_PU22_8MB_mod repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the PS1 PU22 8MB mod design in my own project?
It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.