> Does every data book claim a different thing? ;-) How are we supposed to > know what it _actually_ does? Has someone got one to test? > > imc
All the books I've got say that the 574 and the 374 are mirrored input and output pinouts... the one that was a different active level is the 576. Don't listen to Maplins -- they're crap. Get a Farnell's catalogue instead. If you have problems, phone DQ (Directory Enquiries in BT speak), get Farnell's number and ask them to send you a catalogue... Simon ps the catalogue /may/ cost money...
