CompaqportableIII
About the CompaqportableIII PCB
CompaqportableIII is an open source PCB design by raymondh2, published on GitHub. It is a 2-layer board measuring 194 × 170.6 mm, with 123 components from 71 distinct parts.
Other key parts include the 74F244, 74F32, 74F00, 74F245 and 74F10. By type, the board carries 79 ICs, 21 resistors, 4 connectors, 3 transistors and 1 switch.
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 CompaqportableIII
CompaqportableIII bill of materials (BOM)
123 components, 71 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74F244 7406N | DIP-14_W7.62mm | U1 |
| 1 | 74F32 SN75477 | DIP-8_W7.62mm | U2 |
| 1 | 74F00 MC4024 | DIP-14_W7.62mm | U3 |
| 1 | 74F32 7406N | DIP-14_W7.62mm | U4 |
| 1 | 74F245 D765 | DIP-40_W15.24mm | U6 |
| 1 | 74F10 74ALS00 | DIP-14_W7.62mm | U7 |
| 1 | 74LS112 | DIP-16_W7.62mm | U8 |
| 1 | MC3487N | DIP-16_W7.62mm | U9 |
| 1 | PAL16L8 | DIP-20_W7.62mm | U10 |
| 3 | 74LS245 | DIP-20_W7.62mm | U11, U23, U26 |
| 1 | 74LS244 | DIP-20_W7.62mm | U12 |
| 1 | μA741CP | DIP-8_W7.62mm | U13 |
| 1 | 74LS14 | DIP-14_W7.62mm | U14 |
| 1 | 74LS08 | DIP-14_W7.62mm | U15 |
| 2 | 74ALS74 | DIP-14_W7.62mm | U16, U91 |
| 1 | 74F08 | DIP-14_W7.62mm | U17 |
| 3 | 74LS125 | DIP-14_W7.62mm | U18, U24, U37 |
| 2 | 74ALS138 | DIP-16_W7.62mm | U19, U52 |
| 1 | PAL20L8 | DIP-24_W7.62mm | U20 |
| 2 | MB8264A | DIP-16_W7.62mm | U21, U27 |
Show 51 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 74ALS04 | DIP-14_W7.62mm | U22, U64 |
| 1 | 74LS05 | DIP-14_W7.62mm | U28 |
| 1 | F5C-S7 | Oscillator_DIP-14 | U29 |
| 1 | 16450 | DIP-40_W15.24mm | U30 |
| 3 | 74F245 | DIP-20_W7.62mm | U32, U68, U78 |
| 2 | 74ALS244 | DIP-20_W7.62mm | U33, U48 |
| 2 | 74F00 | DIP-14_W7.62mm | U36, U41 |
| 2 | 74LS367 | DIP-16_W7.62mm | U38, U62 |
| 5 | 74ALS245 | DIP-20_W7.62mm | U40, U47, U70, U79, U80 |
| 1 | 74LS09 | DIP-14_W7.62mm | U42 |
| 1 | 80287 | DIP-40_W15.24mm | U43 |
| 1 | 1.843200 MHz | Oscillator_DIP-14 | U44 |
| 1 | 48 MHz | Oscillator_DIP-14 | U45 |
| 2 | 74F32 | DIP-14_W7.62mm | U46, U60 |
| 1 | 74F10 | DIP-14_W7.62mm | U49 |
| 1 | 8742 | DIP-40_W15.24mm | U51 |
| 1 | 74F257 | DIP-20_W7.62mm | U53 |
| 3 | 74F244 | DIP-20_W7.62mm | U54, U55, U61 |
| 1 | 74ALS27 | DIP-14_W7.62mm | U65 |
| 2 | 8237 | DIP-40_W15.24mm | U66, U67 |
| 1 | 74LS646 | DIP-24_W7.62mm | U69 |
| 2 | 74LS280 | DIP-14_W7.62mm | U71, U81 |
| 4 | 27C256 | DIP-28_W15.24mm | U72, U73, U89, U90 |
| 2 | MC1489 | DIP-14_W7.62mm | U74, U75 |
| 1 | 74LS374 | DIP-20_W7.62mm | U76 |
| 1 | MC146818A | DIP-24_W15.24mm | U77 |
| 1 | MC1488 | DIP-14_W7.62mm | U82 |
| 1 | 4069 | DIP-14_W7.62mm | U83 |
| 2 | 8259A-2 | DIP-28_W15.24mm | U84, U85 |
| 1 | 8254 | DIP-24_W15.24mm | U86 |
| 2 | 74LS373 | DIP-20_W7.62mm | U87, U88 |
| 1 | TL431C | TO-92_Inline | Q1 |
| 2 | PN2222A | TO-92_Inline | Q2, Q3 |
| 1 | Conn_02x25_Odd_Even | PinHeader_2x25_P2.54mm_Vertical | J005 |
| 1 | Conn_02x17_Odd_Even | PinHeader_2x17_P2.54mm_Vertical | P108 |
| 1 | Conn_02x20_Odd_Even | PinHeader_2x20_P2.54mm_Vertical | P109 |
| 1 | 09732967801 DIN41612_96abc | DIN41612_R_3x32_Male_Vertical_THT | P111 |
| 1 | CONN_01X03 Conn_01x03 | PinHeader_1x03_P2.54mm_Vertical | E1 |
| 6 | Conn_01x02 | PinHeader_1x02_P2.54mm_Vertical | E2, E3, E4, E5, E6, E13 |
| 5 | Conn_01x03 | PinHeader_1x03_P2.54mm_Vertical | E7, E9, E10, E12, E14 |
| 2 | Conn_01x06 | PinHeader_1x06_P2.54mm_Vertical | E8, E17 |
| 1 | Conn_01x09 | PinHeader_1x09_P2.54mm_Vertical | E11 |
| 1 | SW_DIP_x08 | SW_DIP_SPSTx08_Slide_9.78x22.5mm_W7.62mm_P2.54mm | SW1 |
| 1 | 1K | R_Array_SIP10 | RN1 |
| 1 | 2K | R_Array_SIP10 | RN2 |
| 11 | 8K2 | R_Array_SIP10 | RN3, RN8, RN9, RN10, RN11, RN12, RN13, RN14 +3 |
| 1 | 300R | R_Array_SIP6 | RN4 |
| 2 | 8.2K 8K2 | R_Array_SIP10 | RN5, RN6 |
| 1 | 180 | R_Array_SIP10 | RN7 |
| 1 | 100R | R_Array_SIP6 | RN15 |
| 3 | 33R | R_Array_SIP10 | RN16, RN17, RN18 |
CompaqportableIII design files
The KiCad project lives in the raymondh2/CompaqPortableIII repository on GitHub; these links point at the commit this page was built from.
CompaqportableIII: common questions
How big is the CompaqportableIII PCB?
The CompaqportableIII measures 194 × 170.6 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the CompaqportableIII?
123 components, from 71 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 CompaqportableIII 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 CompaqportableIII 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.
