QX-10 1MB Memory Expansion Board
About the QX-10 1MB Memory Expansion Board
QX-10 1MB Memory Expansion Board is an open source PCB design by brijohn, published on GitHub. It is a 2-layer board measuring 281 × 79 mm, with 22 components from 10 distinct parts.
Other key parts include the 74LS245, 74LS541, 74LS125, 74LS00 and 74LS04. By type, the board carries 14 capacitors, 7 ICs and 1 connector.
From the project
Epson QX-10 Files
Main components on the QX-10 1MB Memory Expansion Board
QX-10 1MB Memory Expansion Board bill of materials (BOM)
22 components, 10 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74LS245 74LS541 SN74LS245N | DIP-20_W7.62mm_LongPads | U1 |
| 1 | 74LS541 SN74LS541N | DIP-20_W7.62mm_LongPads | U2 |
| 1 | 74LS541 74LS245 SN74LS541N | DIP-20_W7.62mm_LongPads | U3 |
| 1 | 74LS125 74LS541 SN74LS125AN | DIP-20_W7.62mm_LongPads | U4 |
| 1 | 74LS00 EPM7160SLC84-7 SN74LS00N | PLCC-84_THT-Socket | U5 |
| 1 | 74LS04 AS6C4008-55PCN SN74LS04N | DIP-32_W15.24mm_Socket_LongPads | U6 |
| 1 | LS74 AS6C4008-55PCN SN74LS74AN | DIP-32_W15.24mm_Socket_LongPads | U7 |
| 1 | QX10_Bus | BUS_QX10 | CN1 |
| 11 | 0.1uf | C_Disc_D5.0mm_W2.5mm_P2.50mm | C1, C2, C3, C4, C5, C6, C7, C8 +3 |
| 3 | 0.1UF 0.1uf K104K15X7RF5UL2 | C_Disc_D5.0mm_W2.5mm_P2.50mm | C11, C14, C15 |
QX-10 1MB Memory Expansion Board design files
The KiCad project lives in the brijohn/qx10 repository on GitHub; these links point at the commit this page was built from.
QX-10 1MB Memory Expansion Board: common questions
How big is the QX-10 1MB Memory Expansion Board?
The QX-10 1MB Memory Expansion Board measures 281 × 79 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the QX-10 1MB Memory Expansion Board?
22 components, from 10 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 QX-10 1MB Memory Expansion Board design files?
From the brijohn/qx10 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 QX-10 1MB Memory Expansion Board design in my own project?
The repository has no license, so all rights stay with brijohn. Use it as a reference, and ask the author before reusing the design.
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