Shopping Cart Checkout Shipping Cost Download Website

Home

MP3 Player

8051 Tools

All Projects

PJRC Store

Site Map

You are here: 8051 Tools Development Board Old Versions Rev 2 (1997) Schematic

Search PJRC

PJRC Store 8051 Dev Board, $79 LCD 20x2 Display, $11 Serial Cable, $5 12 Volt Power, $8 More Components... 8051 Tools Main Page Software PAULMON Monitor Development Board Features Photos Getting Started Example Code Memory Map Ports & Pinouts Schematic & Parts Circuit Board Construction Troubleshooting Old Versions Revision List Rev 4 (2002) Rev 3 (2001) Rev 2 (1997) Photo Schematic Circuit Board Construction Buying Parts Rev 1 (1992) Code Library 89C2051 Programmer Other Resources

New Rev 4 Board

A newer version (Rev 4) of this circuit board is available. Rev 4 includes a faster CPU, more memory, more I/O and an optional LCD. We recommend you use Rev 4 for new projects. Even though this older board is no longer available, we are keeping these old pages on-line for reference to assist people who purchased or build the older version.

Schematic Drawing

This design and its schematic have been placed in the public domain. They are distributed in the hope that they will be useful, but are provided without any warranty, not even a warranty of merchantability or fitness for a particular purpose.

Also, the original (ugly) schematic that Forrest used to create the circuit board is available for download, as a postscript file, or a bitmap image.

Parts List