can true-single-phase divider work at very low speed?

[bigworm]

Hi,
as the divider has to cover very wide freq range(0-2G), I want to use true-single-phase structure to design the DFF. I am not quite familiar with this. It works well for 2G with 0.18um process. Can it support as low as several MHz or KHz? Thanks!

 

[saro_k_82]

The original circuit has a low frequency limit which depends on leakages which usually limits it's operation to MHz. But you can make it work till dc by providing feedback inverters (latches).

 

[bigworm]

yes! that really makes sense.
thanks!