I have a frequency counter project that uses a 4 bit counter made up of a 74LVC109 followed by a 74LVC74 running at around 200 MHz followed by a micro-controller for the core counter.
There are 3 front ends for this core counter that I want to select between: 1) A prescaler IC 2) an RF FET 3) a logic input that uses a 74LVC04
I'm looking at the SN74CB3T3253 to select between these 3 input devices; even though I only need 1 direction, I like the low propagation delay better than say a 74LVC139A - I will set the PCB up to have traces as short as possible but I'm looking for guidance on chip-chip interconnect best practices at around 200-300 MHz. Should I include a series resistor to suppress ringing? Do I need to attenuate the signals to avoid ground bounce? Maybe there is a document on logic interface best practices that I haven't found yet that would answer these questions?
Any help is appreciated. Thanks.
