>To put it another way, if you run the chip with nothing connected, it will >draw 5mA [or less]. If you run it with 12 LED's sourcing 20mA each, it will >draw 245mA. Hi, I didn't realise you could source so much current from a 16C65. Is the same true for a 16C84. My application uses 3 solenoids which pull 90 mA max. I use 3 darlingtons to switch them; since space is at an absolute premium, could I dispense with the darlingtions and drive the solenoids direct from the port pins? Geoff.