## lunarka 2 years ago can anyone help me with H8p3 last question please?

1. axi

24

2. lunarka

i put it, but still didnt get green mark :(

3. axi

give me d complete ques?

4. sandeep122443

can u pls anwer the question before dat i mean last 2nd question

5. andrew.winney

the one befor t s 45!!

6. axi

75

7. Nurali

tell me question

8. andrew.winney

Now, suppose DIN is high, the drain of Q1 is low, and the gate of Q2 is at VOH. A STORE pulse comes in and turns on Q3. How long must the STORE pulse be on, in picoseconds, to discharge the gate capacitance of Q2 to VIL?

9. andrew.winney

We assume an "ancient" 1μm technology satisfying the static discipline: VS=5.0V, VOH=3.5V, VIH=3.0V, VIL=0.9V, VOL=0.5V The gate-source capacitance CGS=3.5fF and VT=1.0V. RON=2050.0Ω, ROFF=95.0MΩ and RPU=10.0kΩ. The specifications for this logic family say that we have to refresh this memory every 64ms. So, if we charge the gate capacitance to VOH it will take more than 64ms to decay to VIH.

10. nickfrei

for 4 use (-ln( (3.5-5) / (0.5-5) ) * (RPU+RON) * 3.5*10^-15) * 10^12

11. 1431mahi

for 4th (-ln( (3.5-5) / (0.5-5) ) * (RPU+RON) * 3.5*10^-15) * 10^12 for 5th (-ln( (0.9-(5*RON/(RON+RPU))) / (3.5-(5*RON/(RON+RPU))) ) * ((RON|| RPU) + RON) * 3.5*10^-15) * 10^12 got ryt give me best response

12. namitha_s

@1431mahi: there is a bracket extra in ur ans 4 5th question..