CompaqPortableIIImemexp
About the CompaqPortableIIImemexp PCB
CompaqPortableIIImemexp is an open source PCB design by raymondh2, published on GitHub. It is a 4-layer board measuring 142.2 × 104.1 mm, with 30 components from 12 distinct parts.
Other key parts include the SN74F244N, SN74F32N, SN74F00N, SN74F245N and SN74F10N. By type, the board carries 9 capacitors, 7 ICs, 7 connectors and 6 resistors.
From the project
Current PCB Memory Expansion board layout is untested. The backplane for the expansion cards is tested and working.
Current PCB Memory Expansion board layout is untested. The backplane for the expansion cards is tested and working.
Recreation of U10 Part Number 107393-001 working as expected so far. Recreation of U20 Part Number 107392-001 is untested.
The mainboard schematics are not verfied or complete.
Main components on the CompaqPortableIIImemexp
CompaqPortableIIImemexp bill of materials (BOM)
30 components, 12 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SN74F244N 74F244 | DIP-20_W7.62mm | U1 |
| 2 | SN74F32N 74F32 | DIP-14_W7.62mm | U2, U4 |
| 1 | SN74F00N 74F00 | DIP-14_W7.62mm | U3 |
| 2 | SN74F245N 74F245 | DIP-20_W7.62mm | U5, U6 |
| 1 | SN74F10N 74F10 | DIP-14_W7.62mm | U7 |
| 6 | Conn_SIMM30 | Conn_SIMM30 | J001, J002, J003, J004, J005, J006 |
| 1 | Conn_02x40_Counter_Clockwise | Conn_Edge_PCB_02x40_mirror_memexp | J114 |
| 1 | PH1-03-UA Conn_01x03 | PinHeader_1x03_P2.54mm_Vertical | E1 |
| 2 | TAP106K016CRS 10u | CP_Radial_Tantal_D6.0mm_P5.00mm | C1, C2 |
| 7 | FG28X7R1H473KNT06 47n | C_Disc_D4.7mm_W2.5mm_P5.00mm | C3, C4, C5, C6, C7, C8, C9 |
| 4 | 4610X-102-330LF 33 | R_Array_SIP10 | RN1, RN2, RN3, RN4 |
| 2 | 4610X-101-822LF 8.2k | R_Array_SIP10 | RN5, RN6 |
CompaqPortableIIImemexp design files
The KiCad project lives in the raymondh2/CompaqPortableIII repository on GitHub; these links point at the commit this page was built from.
CompaqPortableIIImemexp: common questions
How big is the CompaqPortableIIImemexp PCB?
The CompaqPortableIIImemexp measures 142.2 × 104.1 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the CompaqPortableIIImemexp?
30 components, from 12 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 CompaqPortableIIImemexp design files?
From the raymondh2/CompaqPortableIII 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 CompaqPortableIIImemexp design in my own project?
The repository has no license, so all rights stay with raymondh2. Use it as a reference, and ask the author before reusing the design.
