EE6361-Advanced Topics in VLSI Class Quiz
Wordline Driver
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Q1. Given that random local variations in 14nm is lesser than that in 22nm, which of the following assignments could be correct?
A - 14nm @ VWL=-0.2V, B - 14nm @ VWL = -0.3V, C - 22nm @ VWL=-0.25, D - 22nm @ VWL = -0.35V
A - 14nm @ VWL=-0.3V, B - 14nm @ VWL = -0.2V, C - 22nm @ VWL=-0.35, D - 22nm @ VWL = -0.25V
A - 22nm @ VWL=-0.25V, B - 22nm @ VWL = -0.35V, C - 22nm @ VWL=-0.25, D - 22nm @ VWL = -0.35V
A - 14nm @ VWL=-0.2V, B - 14nm @ VWL = -0.3V, C - 14nm @ VWL=-0.25, D - 14nm @ VWL = -0.35V
Q2. Using thick oxide WL drivers is not preferable because
It's not possible to make it fast enough
It occupies too much area
It does not track the process of the remaining circuits
All of the above
Q3.For the word-line driver shown below, VPP=1.6V, VREF=650mV, VWL=-0.4V and NMOS/PMOS Vt=0.3V. If the input at 201 is 0 then the Vds of T212 is
Your answer
Q4. In the above question, VDS of T222 is
Your answer
Q5. If the input is now made VDD then the VDS of transistor T222 will now become
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