Product Summary
http://pdf1.alldatasheet.com/datasheet-pdf/view/513107/MICROCHIP/PIC16F873A-ISP.html
Parametrics
http://pdf1.alldatasheet.com/datasheet-pdf/view/513107/MICROCHIP/PIC16F873A-ISP.html
Features
http://pdf1.alldatasheet.com/datasheet-pdf/view/513107/MICROCHIP/PIC16F873A-ISP.html
Diagrams
http://pdf1.alldatasheet.com/datasheet-pdf/view/513107/MICROCHIP/PIC16F873A-ISP.html