Does anyone know the max voltage you can run a 16c84 at ? I tried the other day, at about 8 volts it became unstable could this have been because it was misreading the eeprom ? I should try programming it at a higher voltage. But before I do, has anyone else done this ? It would be great if its possible to run direct from a 9 volt battery I am not bothered if the odd one gets fried in this application also as current drain will be very low I can use a large current limiting resistor of 330 Ohms or so in the supply line As a last resort suppose I could put a led in the supply line -- Peter Cousens email: peter@cousens.her.forthnet.gr phone: + 3081 324450, 380534 snailmail: Folia, Agia Fotini, Karteros, Heraklion Crete, Greece.