I'm designing a gadget which uses a small micro to look at the0V/3.3V logic states on 125 lines. I need to turn it into serial data. It doesn't have to be very fast. There doesn't seem to be any electrical problem with stringing 16 8-bit parallel-serial shift registers (74HC165 etc) together, except that it'll take up a fair amount of board area. Does anyone know of a more 'elegant' way of doing it with a smaller number of bigger chips? Thanks!