A 74VHC74 can clock from DC to 175MHz, if you can get your signal to TTL=20 levels. On 5/5/2014 8:11 AM, Martin K wrote: > On 5/4/2014 9:13 PM, Thomas Sefranek wrote: >> Think pre-scaler >> >> http://www.onsemi.com/pub_link/Collateral/MC12080-D.PDF >> >> > Tom, thank you for the reply. > > Most prescalers I have seen are for several GHz, however I just looked > again and found several Hittite parts that claim to be good down to DC. > I was initially avoiding parts that claimed to work to several GHz (out > of misunderstanding, perhaps) > > On closer analysis, the Hittite parts' websites claim to be good for DC > - several GHz, however the datasheets do not recommend operation < 200 > MHz when using a sine wave. > > - > Martin > > --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .