z3nger
Newbie level 2
New to the forum, so this may be in the wrong section, my pre-emptive apologies to anyone who may care.
Can someone explain to me why one would prefer one over the other (NMOS vs PMOS) sleeper when power-gating? My initial sentiment is that it depends on the output of the circuit, is this true? If in my steady-state, my pull-up of the circuit is off and pull-down is on, it should be better to use a header (PMOS) over NMOS, right? If not, please explain.
So assuming the input/output states of the circuit dictates the optimal choice of sleeper xtor, without knowing the exact input vectors, how do I go about choosing one over the other? Why do most articles just say to use NMOS simply because it can be sized smaller to achieve the same resistance ..but aren't we massively oversimplifying things?
Thanks in advance.
Can someone explain to me why one would prefer one over the other (NMOS vs PMOS) sleeper when power-gating? My initial sentiment is that it depends on the output of the circuit, is this true? If in my steady-state, my pull-up of the circuit is off and pull-down is on, it should be better to use a header (PMOS) over NMOS, right? If not, please explain.
So assuming the input/output states of the circuit dictates the optimal choice of sleeper xtor, without knowing the exact input vectors, how do I go about choosing one over the other? Why do most articles just say to use NMOS simply because it can be sized smaller to achieve the same resistance ..but aren't we massively oversimplifying things?
Thanks in advance.