Updates

• Complete Micro 8088 - IBM XT Compatible Processor Board Kit is now also available
• The PCB version has been updated to 1.4. There is a small change from previous versions that allows using 256 KiB and 512 KiB Flash ROMs.

Overview

Micro 8088 is an easy to build IBM PC/XT compatible processor board. It is based on Faraday FE2010/FE2010A or Proton PT8010AF chipset, that implements most of IBM PC/XT LSIs (Intel 8xxx ICs) and glue logic. Micro 8088 uses SRAM ICs to implement the system RAM, and a Flash ROM IC to store the BIOS, further reducing the number of components, and simplifying the build process.

Specifications

• Processor: Intel 8088 or compatible, NEC V20, running at the standard IBM PC/XT 4.77 MHz CPU frequency, 7.16 MHz, or 9.54 MHz "turbo" CPU frequencies
• Co-processor: Intel 8087 (optional, not supplied with the kit)
• Faraday FE2010/FE2010A or Proton PT8010AF chipset, implementing the following components: 8237 direct memory access controller (DMAC), 8259 programmable interrupt controller (PIC), 8254 programmable interval timer (PIT), 8255 programmable peripheral interface (PPI), clock generation, and glue logic
• RAM: 512 KiB or 640 KiB base memory; Up to 192 KiB UMBs. Implemented using two 512 KiB SRAM ICs
• ROM: 64 KiB. Implemented using 128 KiB Flash ROM
• 8-bit ISA interface
• PS/2 compatible keyboard connector; built in AT2XT converter

What is included

This listing includes: a high quality Micro 8088 PCB with hard gold plated card edge connector, a PT8010AF chipset IC, a 28.63636 MHz crystal, a trimmer capacitor for the clock circuit, and a 3D printed ISA bracket.

All other parts can be purchased from various electronic components distributors, eBay, or perhaps you already have them in your parts bin! Please refer to the Bill of Materials section of the README file for the parts list.

Looking for the complete kit? Please check Micro 8088 - IBM XT Compatible Processor Board Kit