Hi piclisters. Could anybody point me to a source on info (didactical, not datasheets) about the internal electronics of TTL digital devices? I find lots of info on general TTL stuff, projects - specs - etc) but the actual transistor-transistor action inside of them is mostly missing. Thanks in advance for you time and help, Regards, *Carlos Marcano* -Guri, Venezuela- -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist