Daewoo Backslot RAM Expansion
About the Daewoo Backslot RAM Expansion PCB
Daewoo Backslot RAM Expansion is an open source PCB design by RBSC, published on GitHub. It is a 2-layer board measuring 85.4 × 64 mm, with 21 components from 11 distinct parts.
Other key parts include the AMS1117-3.3, EPM240T100 and AS6C4008-55PCN. By type, the board carries 10 capacitors, 6 ICs, 2 connectors, 2 resistors and 1 diode.
From the project
Upgrading Daewoo CPC-400/400S into MSX2/MSX2+
These folders contain Gerber files, KiCAD source files. ROMs, BOMs, 3D case files and firmwares for the following boards:
FMPAC Light board (with stereo output) Slot Expander Board EPROM/SLOT Daughterboard RAM Expansion Board Older RAM Expansion Board (!different firmware for the Slot Expander is required!)
The boards and firmwares were created by Wierzbowsky [RBSC] and Max Vlasov [Meteor-M].
Main components on the Daewoo Backslot RAM Expansion
Daewoo Backslot RAM Expansion bill of materials (BOM)
21 components, 11 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AMS1117-3.3 | SOT-223-3_TabPin2 | U1 |
| 1 | EPM240T100 | LQFP-100_14x14mm_P0.5mm | U2 |
| 4 | AS6C4008-55PCN | SOP-32_11.305x20.495mm_P1.27mm | U3, U4, U5, U6 |
| 1 | my_components_MSX_SLOT_HOST | DaewooBackSlotConnector | BUS1 |
| 1 | AVR-JTAG-10 | IDC-Header_2x05_P2.54mm_Vertical | J1 |
| 1 | 1N4148W | D_SOD-123 | D1 |
| 8 | 100NF 100nF | C_0805_2012Metric | C1, C2, C3, C4, C6, C7, C8, C9 |
| 1 | 100uF 16V | CP_Radial_D5.0mm_P2.50mm | C5 |
| 1 | 100uF 16V | CP_Radial_D5.0mm_P2.00mm | C10 |
| 1 | 1k | R_0805_2012Metric | R1 |
| 1 | 10K 10k | R_0805_2012Metric | R2 |
Daewoo Backslot RAM Expansion design files
The KiCad project lives in the RBSC/Daewoo_CPC400_Upgrade repository on GitHub; these links point at the commit this page was built from.
Daewoo Backslot RAM Expansion: common questions
How big is the Daewoo Backslot RAM Expansion PCB?
The Daewoo Backslot RAM Expansion measures 85.4 × 64 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Daewoo Backslot RAM Expansion?
21 components, from 11 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Daewoo Backslot RAM Expansion design files?
From the RBSC/Daewoo_CPC400_Upgrade repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Daewoo Backslot RAM Expansion design in my own project?
The repository has no license, so all rights stay with RBSC. Use it as a reference, and ask the author before reusing the design.
