Boom ! (Well almost .) The TIL-311 is a combined hex decoder / latch display driver. Jacques - I have sent you an email 1.7MB with the product data sheets... Regards MC -----Original Message----- From: Jacques Vrey [SMTP:jvrey@IT.NEW.ISCORLTD.CO.ZA] Sent: Wednesday, September 10, 1997 4:31 PM To: PICLIST@MITVMA.MIT.EDU Subject: Re: [OT] 7 Segment LED > > Have you tried putting one of them in a breadboard, and using a 3V supply > and a 200R resistor to check out the pins. Connect a random pin to ground > then connect each pin in turn through the resistor to +3V. > > These are the possible outcomes.