Other Parts Discussed in Thread: CSD17484F4,
Hello,
I would like to drive a femtofet, CSD17484F4 for example, with the output of a nor gate such as the low power SN74AUP2G02 and have some questions:
1.) What is the maximum amount of output current(of the NOR gate) that would be expected if I were to short the output at Vcc = 0.8V, 1.1V,,,,,3.3V? Ignoring for the moment device destruction.
2.) Related to question 1, what sort of internal resistances exist within the device which may help in the effort to not exceed maximum currents? I'm looking to find out how much current limiting must be added after accounting for any intrinsic impedances.
3.) All things considered, at around Vcc=1.1V, is there a setup which would allow the NOR output to safely and repeatedly switch the CSD17484F4 femtofet with propogation delays of less than about 200ns? Assume for the moment that Vth of the femtofet is less than 1.1V. What about two fets being driven by the same output?
4.) In the absolute maximum section of the NOR gate's datasheet there are two parameters listed named, " Continuous output current " and "Continuous current through VCC or GND". I'm failing to see the difference based on name alone since, at least for the cases I'm imagining, any output current would necessarily flow through either Vcc or ground. Would you please explain the difference between these two parameters.
5.) If the NOR gate in question is not suitable, can you recommend a different part?
Thank you.