ECEN 454 Quizzes with verified answers rated A+
updated
1. What is polysilicon? silicon mixed with impurities
2. Why is nMOS better than pMOS? nMOS has higher mobility
3. Layers are ordered from bottom to top body, poly, metal
4. What function does Circuit A implement? F = A' + B'
(NAND F = (AB)')
5. What function does Circuit B implement? F = A'B'
(NOR F = (A+B)')
6. We need latches or flipflops for - holding states
-sequential circuits
-store information
7. instead of using a multiplexor to 8. a simple complete
implement a latch (break double controllable d-latch
inversion loop and permit control) we design can be had
can use _ transmission gates using only _
transistors
1/
16
,ECEN 454 Quizzes with verified answers rated A+
updated
2 transmission gates
2 transistors
2/
16
, ECEN 454 Quizzes with verified answers rated A+
updated
9. A D F/F is preferred over a latch to prevent racing
10. Operating modes of a MOS transistor's none of these
capaci- tor without Vds does not
include
- Accumulation
- Saturation
- Depletion
- Inversion
11. source-drain current begins Inversion at the channel with Vds
12. channel pinches off when Vds > Vgs - Vt
13. Assuming the transistors are ideally sized, what 6C
is the capacitance at node N?
14. Assuming the transistors are ideally sized, what 11C
is the capacitance at node M?
15. R at node N when inputs C=1 and A=B=0 1/2 R
16. R at node M when inputs C=0 and A=B=1 1R
3/
16
updated
1. What is polysilicon? silicon mixed with impurities
2. Why is nMOS better than pMOS? nMOS has higher mobility
3. Layers are ordered from bottom to top body, poly, metal
4. What function does Circuit A implement? F = A' + B'
(NAND F = (AB)')
5. What function does Circuit B implement? F = A'B'
(NOR F = (A+B)')
6. We need latches or flipflops for - holding states
-sequential circuits
-store information
7. instead of using a multiplexor to 8. a simple complete
implement a latch (break double controllable d-latch
inversion loop and permit control) we design can be had
can use _ transmission gates using only _
transistors
1/
16
,ECEN 454 Quizzes with verified answers rated A+
updated
2 transmission gates
2 transistors
2/
16
, ECEN 454 Quizzes with verified answers rated A+
updated
9. A D F/F is preferred over a latch to prevent racing
10. Operating modes of a MOS transistor's none of these
capaci- tor without Vds does not
include
- Accumulation
- Saturation
- Depletion
- Inversion
11. source-drain current begins Inversion at the channel with Vds
12. channel pinches off when Vds > Vgs - Vt
13. Assuming the transistors are ideally sized, what 6C
is the capacitance at node N?
14. Assuming the transistors are ideally sized, what 11C
is the capacitance at node M?
15. R at node N when inputs C=1 and A=B=0 1/2 R
16. R at node M when inputs C=0 and A=B=1 1R
3/
16
