Cypress CY7C371U Info/Datasheet

[Jeff Walther]

There are 10s of thousands of these CPLDs on the market at reasonable 
prices (<$1 each) and I might like to use them to build some of my 
projects of expansion cards for older machines.  However, I can not 
find a datasheet which mentions the 'U' variant of the CY7C371.

I found a datasheet for the CY7C371 and CY7C371L.  And Cypress only 
has the sheets for the newer CY7C371i version 
(in-system-programmable).   But none of these mentions the U variant.

I would hate to pick up the U variant only to discover that it is OTP 
or something.

Anyone have info or a datasheet for the U variant?   Is there a 
secret/obscure link on Cypress's website that leads to datasheets for 
obsolete parts?   As far as I can tell, once it's obsolete they yank 
all support from their site.   Sigh.  I like Samsung's more 
enlightened approach, where datasheets for memory discontinued years 
ago are still available--so far.

Thank you for any helpful or humorous information.

Jeff Walther