I don't think it actually uses the oscillation of cesium 133 so there isn't actually 9,192,631,770 cycles for each second, but the makers of this clock claim it has accuracy comparable to an cesium 133 atomic clock and is a chip level device.
http://electronicdesign.c...tter&NL=1&YM_RID=#email#
hmelton
God bless
http://electronicdesign.c...tter&NL=1&YM_RID=#email#
hmelton
God bless