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PPort

homebrew8088·8088-PC-Compatible·Kicad/Other PCBs/PPort/PPort.kicad_pcb

PPort PCB layout, top view — open source board by homebrew8088
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About the PPort PCB

PPort is an open source PCB design by homebrew8088, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 104 × 73.9 mm, with 20 components from 10 distinct parts.

Other key parts include the 8255 and 74LS138. By type, the board carries 6 connectors, 6 resistors, 4 ICs and 4 capacitors.

From the project

8088 PC XT Compatible

\ \ This is a repository for my 8088 PC Compatible project developed in 2021. The Motherboard is built to be generally PC XT compatible.

Join the discussion group on Discord\ https://discord.gg/AswNqwpRGP

eBay store\ http://www.ebay.com/sch/emil6190/m.html

Features:\ -8088, NEC V20, OR NEC V40 Processor\ -512k RAM (This can be changed)\ -8 Bit ISA sockets (4 slots or 7 slots)\ -PC Speaker\ -USB "Hard Drive"\ -PS/2 Keyboard\ -ATX form factor\ -Add on DMA controller (7 slot ISA only)

PPort, from the project README
From the project README

Main components on the PPort

825574LS138

PPort bill of materials (BOM)

20 components, 10 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
8255
U1
3
74LS138
U2, U3, U4
1
PORT C
J1
1
PORT B
J2
1
PORT A
J3
1
INTR B SELECT
J4
1
INTR A SELECT
J5
1
8255 BASE PORT
J6
4
0.1UF
0.1uF
C1, C2, C3, C4
6
4.7k OHM
RN1, RN2, RN3, RN4, RN5, RN6

PPort design files

The KiCad project lives in the homebrew8088/8088-PC-Compatible repository on GitHub; these links point at the commit this page was built from.

PPort: common questions

How big is the PPort PCB?

The PPort measures 104 × 73.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the PPort?

20 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 PPort design files?

From the homebrew8088/8088-PC-Compatible repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the PPort design in my own project?

Yes, under the terms of its GPL-3.0 license, which homebrew8088 chose for the repository.

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