4 Nov
2011
4 Nov
'11
8:30 p.m.
Chuck Guzis wrote:
These were common in Yaesu and Kenwood HAM radios
National also had a parallel series of CMOS
chips, with 4000
equivalents, the MM56xx series.
Wow, never heard of those. They had MM74Cxxx
parts, which were
functionally equivalent to the other 74xx parts but with CD4000
equivalent electrical performance and timing.