On 31/07/2011, anton andersson <[email protected]> wrote: > I have limited capabilities > to test the circuit properly (with nixies, cathode driver and > microcontroller etc.) and therefore I wonder if anyone at Neonixie has > used the K155ID1 like this before. I guess that the question is pretty > generic really; is it possible to run a (early generation) TTL circuit > at 3.3V reliably? Keep in mind that I don't require very quick > switching, kilohertz are just fine here.
Hi Anton. Most ttl devices interpret any level above 2.5V as '1', you should be fine feeding 5 volts to the K155 and 3.3 to the xmega. I don't know if the K155 pulls it's inputs high but a 1k resistor can be used to limit current through the pin. regards -- Adrian. http://ovejafm.com http://elesquinazotango.com.ar http://www.elarteylatecnologia.com.ar -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
