4 layers96 × 70 mm
SPI Unit
oberrow/i8088-computer
Code for an i8088-based non-PC compatible breadboard computer
29 parts1MIT
4 layers100 × 100 mm
Intel 8088 Computer
oberrow/i8088-computer1Code for an i8088-based non-PC compatible breadboard computer
- Size
- 100 × 100 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 69
- Nets
- 110
- Pads
- 587
- Tracks, vias
- 2,281, 97
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 25 Apr 2026
- Updated
- 20 Jul 2026
Overview
Intel 8088 Computer is an open-source printed circuit board by oberrow, from the oberrow/i8088-computer repository on GitHub, published under the MIT licence. It is a 4-layer board of 100 × 100 mm with 69 parts on 110 nets, routed with 2,281 tracks and 97 vias.
It is built around the 74HC138, 74LS573PC and 74HC00D, with the 74HC04D and LM2903 among its other parts. Its parts include 24 resistors, 12 capacitors, 11 ICs, 10 connectors and 3 switches.
Main components
5
74HC138
SOP-160℃~+70℃ 24ns@5.0V,16pF 2V~6V 3/8 5.2mA 5.2mA 5uA 74HC Decoder Reverse function Single Supply SOP-16 Signal Switches, Multiplexers, Decoders ROHSGRSignal Switches, Multiplexers, Decoders
74LS573PC
DIP-200℃~+70℃ 10ns 3ns 4.75V~5.25V 74LS 8 D Latch Tri-State DIP-20 Latches ROHSTexas InstrumentsLatches
74HC00D
SOP-14-40℃~+125℃ 1.5V、3.15V、4.2V 1.9V、3.7V、5.9V 100mV、400mV、400mV 2 2V~6V 4 40uA 5.2mA 5.2mA 500mV~1.8V 74HC Series 7ns@6V,50pF NAND Gate SOIC-14 Logic Gates ROHSNexperiaLogic Gates74HC04D
SOP-14-40℃~+125℃ 1 1.5V~4.2V 1.9V、3.7V、5.2V 100mV、400mV、400mV 14ns@6V,50pF 2V~6V 2uA 5.2mA 5.2mA 500mV~1.8V 6 74HC SOIC-14 Inverters ROHSNexperiaInverters
LM2903
SOP-8-18V~-1V、1V~18V 0℃~+70℃ 10mV 1mV 2 25nA 2V~36V 36V 400uA 5nA DTL、TTL、CMOS、ECL、MOS Open Collector SOP-8 Comparators ROHSHXY MOSFETComparators
Parts
69| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23 +8 |
| 11 | C | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm | C1, C2, C3, C5, C6, C7, C8, C9, C10, C11, C12 |
| 6 | Conn_01x28 | Connector_PinHeader_2.54mm:PinHeader_2x14_P2.54mm_Vertical | J3, J4, J5, J6, J7, J8 |
| 5 | MountingHole | Arduino_MountingHole:MountingHole_2.2mm_M2 | H1, H2, H3, H4, H5 |
| 2 | 74HC138 | Package_DIP:DIP-16_W7.62mm | U8, U9 |
| 2 | 74LS573 | Package_DIP:DIP-20_W7.62mm | U6, U7 |
| 2 | Conn_01x34 | Connector_PinHeader_2.54mm:PinHeader_2x17_P2.54mm_Vertical | J1, J2 |
| 2 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | SW1, SW2 |
| 1 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1 |
| 1 | 74HC00 | Package_DIP:DIP-14_W7.62mm | U1 |
| 1 | 74HC04 | Package_DIP:DIP-14_W7.62mm | U2 |
| 1 | 74LS541 | Package_DIP:DIP-20_W7.62mm | U11 |
| 1 | 8088_Min_Mode | Package_DIP:DIP-40_W15.24mm | U5 |
| 1 | 8259A | Package_DIP:DIP-28_W15.24mm | U3 |
| 1 | 8284 | Package_DIP:DIP-18_W7.62mm | U4 |
| 1 | C_Polarized | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C4 |
| 1 | Conn_01x05_MountingPin | Connector_FFC-FPC:Molex_200528-0050_1x05-1MP_P1.00mm_Horizontal | J10 |
| 1 | Crystal | Crystal:Crystal_HC49-U_Vertical | Y1 |
| 1 | LED | LED_THT:LED_D3.0mm | D2 |
| 1 | LM2903 | Package_DIP:DIP-8_W7.62mm | U10 |
| 1 | Q_PMOS_GDS | Package_TO_SOT_THT:TO-220-3_Vertical | Q1 |
| 1 | SW_DIP_x08 | Button_Switch_THT:SW_DIP_SPSTx08_Slide_6.7x21.88mm_W7.62mm_P2.54mm_LowProfile | SW3 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_GCT_USB4085 | J9 |
Questions
How big is the Intel 8088 Computer PCB?
It measures 100 × 100 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Intel 8088 Computer use?
69 parts, built around the 74HC138, 74LS573PC, 74HC00D and 74HC04D. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Intel 8088 Computer KiCad files?
From the oberrow/i8088-computer repository on GitHub, at the commit this page was made from: the board is kicad/Intel_8088_Computer/Intel_8088_Computer.kicad_pcb and its schematic kicad/82C55_GPIO_Unit/82C55_GPIO_Unit.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Intel 8088 Computer design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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