Product Summary
80C32-Compatible
8051 Pin and Instruction Set Compatible
Four 8-Bit I/O Ports
Three 16-Bit Timer/Counters
256 Bytes Scratchpad RAM
Addresses 64kB ROM and 64kB RAM
Parametrics
http://pdf1.alldatasheet.com/datasheet-pdf/view/98811/MAXIM/DS80C320.html
Features
http://pdf1.alldatasheet.com/datasheet-pdf/view/98811/MAXIM/DS80C320.html
Diagrams
http://pdf1.alldatasheet.com/datasheet-pdf/view/98811/MAXIM/DS80C320.html