Don't miss the gem in the comments...someone answers this question there:
"Hi. Is possible use this like a "industrial" fpga? For example, for minning bitcoin? Because the fpga is very expensive here in Brazil, and the 7400 is cheap. "
Top comment on the post (from 2012) is by Lee_Felsenstein [1] of Homebrew Computer Club fame and designer of the Osborne 1, the first successfull portable computer (Lee had no part on tanking the company though, Osborne did that all by himself). Quite awesome to have such legents comment on your project.
"Hi. Is possible use this like a "industrial" fpga? For example, for minning bitcoin? Because the fpga is very expensive here in Brazil, and the 7400 is cheap. "