SBC I made for learning MCS-51 assembly. 8031sbc.png

This is a single board computer utilizing the 8031 microcontroller. The 8031 is the ROMless version of the 8051. This allows me to modify the program running on the 8031 using an attached EPROM. This SBC easilly connects to a breadboard.

8031sbc.png 8031 Intel 8031 Microcontroller Scrap lot bought off eBay /datasheets/8031.pdf 2764 2764 Program EPROM (8192 x 8) Jameco Microprocessor Grab Bag /datasheets/2764.pdf 74373 74373 Address Latch 74xx grab bag /datasheets/74373.pdf xtal 1 MHz Oscillator System Clock eBay rst Push Button Reset Button Unknown 47kr 4.7K Resistor Reset Pull Down Resistor Unknown 10uf 10uF Capacitor Reset Capacitor Unknown Front Back