DeskPro386 16
About the DeskPro386 16 PCB
DeskPro386 16 is an open source PCB design by breadboardinglabs, published on GitHub under the MIT license. It is a board, with 207 components from 103 distinct parts.
Other key parts include the 8259A-2, 74LS245, 74LS244, 74LS590 and MXO45HS-3C-25M1750. By type, the board carries 88 ICs, 37 resistors, 11 capacitors, 6 connectors, 5 inductors and 1 transistor.
From the project
Compaq DeskPro 386/16 KiCad Schematic and PLD files
The Compaq DeskPro 386 was one of the first 80386/i386 PC Compatable computers. It used mainly standard components found in the PC and PC-XT and used 14 basic 20 and 24 pin Programmable Logic Devices (PLDS). Later DeskPro 386 versions used VLSI 160+ pin chips unsuitable for use with breadboards.
Internal Compaq Design documents have been made available on Archive.org which not only include more recent schematics than the original DeskPro 386/16 Technical Guide, but also include the PLD Logic Rules and test vectors for all the chips in the PALASM language.
Main components on the DeskPro386 16
DeskPro386 16 bill of materials (BOM)
207 components, 103 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 8259A-2 | DIP-28_W15.24mm | U1, U2 |
| 8 | 74LS245 | U3, U8, U10, U17, U18, U20, U27, U33 | |
| 6 | 74LS244 | U4, U26, U37, U40, U41, U51 | |
| 1 | 74LS590 | U5 | |
| 1 | MXO45HS-3C-25M1750 MXO45HS-3C-14.3M | MXO45HS3C25M1750 | U6 |
| 8 | 74ALS74 | U7, U61, U63, U67, U70, U72, U81, U90 | |
| 8 | 74ALS573 | U9, U11, U19, U21, U24, U25, U34, U35 | |
| 5 | 2764 | DIP-28_W15.24mm | U12, U13, U14, U15, U112 |
| 1 | 74ALS163 | U16 | |
| 2 | 8237A | DIP-40_W15.24mm | U22, U23 |
| 1 | 74LS243 | U28 | |
| 8 | ATF16V8B | U29, U31, U32, U38, U46, U52, U64, U68 | |
| 1 | 74LS612 | DIP-40_W15.24mm | U30 |
| 1 | 74LSA573 | U39 | |
| 2 | 8254 | DIP-24_W15.24mm | U44, U45 |
| 2 | 74LS125 | U47, U48 | |
| 1 | 74LS138 | U49 | |
| 1 | 74LS175 | U50 | |
| 1 | 74ALS08 | U53 | |
| 2 | 74ALS00 | U54, U66 |
Show 83 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74ALS04 | U55 | |
| 2 | ATF22V10 | U56, U58 | |
| 1 | 74LS273 | U57 | |
| 1 | 74F257BB | U59 | |
| 1 | 74LS51 | U62 | |
| 2 | 74F175 | U65, U74 | |
| 1 | 74F74 | DIP-28_W15.24mm | U69 |
| 1 | 74F00 | U71 | |
| 1 | 74F08 | U73 | |
| 1 | 74HC125 | U75 | |
| 1 | I386DX_PGA | U76 | |
| 1 | MC146818 | DIP-24_W15.24mm | U77 |
| 1 | 8042 | U78 | |
| 3 | 74F74 | U79, U82, U83 | |
| 1 | 74F74BB | U84 | |
| 1 | MXO45HS-3C-32M0000 MXO45HS-3C-32M | MXO45HS3C32M0000 | U85 |
| 1 | 4069 | U86 | |
| 1 | 74ALS02 | U88 | |
| 1 | 74F175BB | U89 | |
| 1 | 74ALS1035 | U91 | |
| 1 | 74F11 | U92 | |
| 1 | SN75477 | U93 | |
| 1 | TL431LP | TO-92_Inline | Q1 |
| 1 | 32.76KHz | Y2 | |
| 1 | 32 Bit Mem Connector | J101 | |
| 1 | Bus_ISA_16bit | J102 | |
| 1 | SPEAKER | J115 | |
| 1 | KEYBOARD | J116 | |
| 1 | BATTERY | J118 | |
| 1 | Conn_01x80_Pin_Memory_Board | P101 | |
| 3 | 1N914 | D_DO-35_SOD27_P7.62mm_Horizontal | CR1, CR2, CR3 |
| 3 | Conn_01x09_Pin | E123, ER1, ER2 | |
| 1 | F 5A | F2 | |
| 1 | KEYLOCK | H2 | |
| 2 | 33R | R_Array_SIP9 | MRB4, RB4 |
| 1 | 33R | MRP1 | |
| 4 | 4K7 | R_Array_SIP10 | MRP5, MRP7, MRP8, MRP9 |
| 1 | 8K2 | R_Array_SIP11 | MRP6 |
| 2 | 74ALS74 | MU1, MU8 | |
| 1 | 74F74 | MU2 | |
| 4 | 74F32 | MU3, MU19, MU24, MU50 | |
| 2 | 74F521 | MU5, MU13 | |
| 2 | 74ALS573 | MU6, MU14 | |
| 3 | ATF16V8B | MU7, MU18, MU59 | |
| 1 | 74F04 | MU9 | |
| 1 | 74ALS08 | MU10 | |
| 2 | 74F573 | MU11, MU12 | |
| 3 | 74F158 | MU15, MU16, MU17 | |
| 2 | 74LS20 | MU20, MU43 | |
| 2 | 74F175 | MU21, MU74 | |
| 1 | 74ALS29827DP | MU22 | |
| 1 | 74F00 | MU25 | |
| 4 | 74F657 | MU26, MU30, MU36, MU42 | |
| 1 | 51256-10 | DIP-16_W7.62mm | MU31 |
| 1 | 74LS244 | MU54 | |
| 3 | 8K2 | R_Array_SIP10 | RP3, RP4, RP5 |
| 2 | 8K2 | R_Array_SIP9 | RP6, RP8 |
| 1 | 20K | R_Array_SIP10 | RP7 |
| 2 | 20K | RX1, RX2 | |
| 1 | SW_DIP_x08 | SW1 | |
| 5 | FerriteBead | L1, L2, L3, L4, L6 | |
| 4 | 47pF | C1, C2, C60, C114 | |
| 2 | 10uF | C9, C19 | |
| 1 | 0.001uF | C97 | |
| 2 | 0.047uF | C98, C101 | |
| 1 | 10pF | C100 | |
| 1 | 18pF | C117 | |
| 1 | 87K | R1 | |
| 1 | 48K | R2 | |
| 1 | 270R | R3 | |
| 1 | 4K7 | R4 | |
| 6 | 1K | R5, R12, R16, R20, R21, R24 | |
| 3 | 30R | R8, R25, R26 | |
| 6 | 180R | R10, R13, R18, R28/9, R30, R42 | |
| 4 | 20K | R14, R41, R999, R1000 | |
| 2 | 8K2 | R15, R22 | |
| 1 | 22M | R17 | |
| 1 | 470K | R19 | |
| 4 | 68R | R31, R33, R36, R38 | |
| 2 | 22R | R34, R35 | |
| 1 | 51R | R37 | |
| 2 | 10K | R39, R40 | |
| 1 | 60R | R44 |
DeskPro386 16 design files
The KiCad project lives in the breadboardinglabs/DeskPro386_16 repository on GitHub; these links point at the commit this page was built from.
DeskPro386 16: common questions
How many components are on the DeskPro386 16?
207 components, from 103 distinct parts. The full bill of materials is listed on this page.
Where can I download the DeskPro386 16 design files?
From the breadboardinglabs/DeskPro386_16 repository on GitHub, which has the schematic; the links under Design files point to each one.
Can I use the DeskPro386 16 design in my own project?
Yes, under the terms of its MIT license, which breadboardinglabs chose for the repository.