I would like to know if these two CPLD's are pin for pin compatible. EPM3064ATI100-10N EPM7064AETI100-7N I think the first one on obsolete and I need a replacement for an old design. Thanks Bernie

Unfortunately both those parts are now obsolete / EOL from Intel.

If you absolutely need a fit/form/function compatible device look at the Microchip/Atmel ATF1504ASV CPLD series.

It is a production part that is readily available, and they offer tools to convert the Altera POF file to the Atmel JED file for programming.

Not an Intel solution, but Intel has EOLed any F/F/F compatible solutions.