cross ref to CY7C371 ?

It's a CPLD, so you can't replace it with another part unless you can program the same bits into it.

AFAIK, there isn't any second-source for the CY3C37x series.

I just found a AMD MACH110, which is suppose to be a replacement. I found that Cypress has a 7c371i version. Don't know the difference between the ' non-i ' and the ' i ' part yet. Still looking for a datasheet.

thanks Ed

The "i" parts are the in-circuit-programmable ones.