Doug, Yes, by definition a TTL-level input should respond to a high input of 2 volts or greater while a low level is 0.8 volts or less. Just as additional information, if an input is CMOS compatible, it will respond to a high level of 3.5 volts or more and a low level below 1.5 volts.
73, Don W3FPR On 9/25/2012 1:55 PM, Douglas Faunrt N6TQS +1-510-655-8604 wrote: > I assume that TTL-level means it works with a +5V/0V swing on input to > the radio? > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
