Glitch Works 8085 SBC rev 3 Single Board Computer

The 8085 SBC rev 3 has been superseded by the 8085 SBC rev 4 Mini and is only available as a bare board.

The Glitch Works 8085 SBC rev 3 is an 8085-based single board computer with Glitchbus expansion. Features include:

1. 8085 CPU at 2 MHz (higher clock speeds supported)
2. 64K onboard static RAM, compatible with FeRAM
3. 32K EEPROM with ROMFS support
4. 8251A USART console with independent bitrate clock
5. Configurable ROM and I/O addressing and options
6. USER software-controlled LED
7. Reset debounce and low-voltage supervisor
8. Pre-programmed EEPROM with GWMON-80 monitor and IMSAI 8K BASIC
9. CF interface available for CP/M support (bootloader already in EEPROM)
10. Single 5V supply operation
11. RS-232 serial console port
12. User's manual and assembly guide with full schematics, theory of operation

This project is available as a bare board, full parts kit or assembled and tested. The parts kit includes all components you need to assemble the basic SBC kit, including pigtails for 5V power and RS-232 serial.

Our parts kit includes a CPU clock crystal for 2 MHz operation (4 MHz crystal). The 8085s included in our kits can operate at higher clock frequencies, but we recommend starting with a 4 MHz crystal before attempting any overclocking. Conservative design has allowed one of our internal testing 8085 SBC rev 3 boards to run at over 9 MHz with a special 8085!

The 8085 SBC rev 3 pairs well with the GW-GLITCHBUS-CF1 CompactFlash adapter, which allows the SBC to run CP/M 2.2 from a CF card (the card is shipped preloaded with our customized CP/M 2.2 image). We're offering bundle options for the CF adapter, as a kit or fully assembled and tested. Any CF option bundled with an 8085 SBC rev 3 comes with a stacking connector, four standoffs and mounting screws, and a 64MB industrial CF card preloaded with CP/M 2.2 for the 8085 SBC rev 3.