ISA8888
DartFrogTek·PCIe-PCI-ISA·ISA8888_KiCAD/ISA8888.kicad_pcb
About the ISA8888 PCB
ISA8888 is an open source PCB design by DartFrogTek, published on GitHub under the MIT license. It is a 2-layer board measuring 169.3 × 98.2 mm, with 70 components from 25 distinct parts.
Other key parts include the SMROM-AT24CS02 and LM7905_TO220. By type, the board carries 37 capacitors, 20 resistors, 7 connectors, 4 ICs, 1 crystal and 1 diode.
From the project
Potential PCIe-to-PCI-to-ISA pathway.
IT FREAKING WORKS ~~~ ISA DDMA ON WIN 10 ~~~ PCM AUDIO PLAYING ON A REAL ISA PICOGUS ON WIN10 !!!
A REAL WORLD FIRST!!! See https://www.vogons.org/viewtopic.php?t=111221 for more details.
This repository contains information and files on how to potentially provide modern systems with an ISA bus including ISA DMA.
More even more historical dev information that's available on the "dISAppointment - LPC to ISA adapter - ISA on modern motherboard" thread. https://www.vogons.org/viewtopic.php?t=93291

Main components on the ISA8888
ISA8888 bill of materials (BOM)
70 components, 25 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ~ | PQFP-160_28x28mm_P0.65mm | U1 |
| 1 | SMROM-AT24CS02 | SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | ~ | SOIC-8_3.9x4.9mm_P1.27mm | U3 |
| 1 | LM7905_TO220 | TO-220-3_Vertical | U4 |
| 1 | CFPS-72 | Oscillator_SMD_IQD_IQXO70-4Pin_7.5x5.0mm | Y1 |
| 1 | Bus_PCI_32bit_Universal | BUS_PCI | J1 |
| 1 | Bus_ISA_16bit | CONN_EBC49_SUL_Fixed | J2 |
| 1 | AEN/BALE/TC J3 | PinHeader_2x03_P2.00mm_Vertical | J3 |
| 1 | Crystal J4 | PinHeader_2x02_P2.00mm_Vertical | J4 |
| 1 | PCI Jumpers | PinHeader_2x04_P2.00mm_Vertical | J5 |
| 1 | PPDGNT# Motherboard Redirect | PinHeader_1x01_P2.00mm_Vertical | J6 |
| 1 | PPDREQ# Motherboard Redirect | PinHeader_1x01_P2.00mm_Vertical | J7 |
| 1 | -5V | LED_D5.0mm | D1 |
| 3 | 100uF | CP_Radial_D5.0mm_P2.50mm | C1, C30, C33 |
| 28 | 100nF | C_1808_4520Metric_Pad1.72x2.30mm_HandSolder | C2, C3, C4, C5, C6, C7, C8, C9 +20 |
| 2 | 47uF | CP_Radial_D5.0mm_P2.50mm | C15, C18 |
| 2 | 150uF | CP_Radial_D5.0mm_P2.50mm | C34, C35 |
| 2 | 33uF | CP_Radial_D5.0mm_P2.50mm | C36, C37 |
| 1 | 330 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 6 | R4.7K | R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R3, R4, R5, R6, R13, R14 |
Show 5 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | R1K | R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R7, R8 |
| 4 | R330 | R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R9, R10, R11, R12 |
| 3 | R50K | R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R15, R16, R17 |
| 3 | R_Net_10_10k | R_Array_SIP11 | RN1, RN3, RN4 |
| 1 | R_Net_10_4k7 | R_Array_SIP11 | RN2 |
ISA8888 design files
The KiCad project lives in the DartFrogTek/PCIe-PCI-ISA repository on GitHub; these links point at the commit this page was built from.
ISA8888: common questions
How big is the ISA8888 PCB?
The ISA8888 measures 169.3 × 98.2 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the ISA8888?
70 components, from 25 distinct parts. The full bill of materials is listed on this page.
Where can I download the ISA8888 design files?
From the DartFrogTek/PCIe-PCI-ISA repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the ISA8888 design in my own project?
Yes, under the terms of its MIT license, which DartFrogTek chose for the repository.
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