There are AVR chips which will suit your requirements. see http://www.atmel.com for details. des >>> Norman Tomlins 1/5/00 3:38:43 pm >>> I want to use the 16C71 to create a program that will read the voltage and current off a 12 Volt battery. I don't want to use the 16C71 and I would like to try and develop with a Flash version of this chip. Any suggestions?