I use 16C74 for upvc window welding machine control. Now I am considering adding an lcd display and eeprom. I have a data sheet but cannot find an application note relating to the 924 - anyone know if one exists. -- Ron Dickinson Compusolve Business Systems 22 Crown Street, Clowne, Chesterfield, Derbyshire S43 4DN, England Tel & Fax : 01246 - 570281