Question

Notify Me Bookmark

Consider the CMOS transistor logic circuit shown below. 2.1 Copy this truth table to your answer sheet and fill it in. Please enter the output state in the truth table (0 or 1) and indicate the state of transistors PT3 and NT3 (ON or OFF) for each row of the table. 2.2 What logic gate does this circuit represent?

Consider the CMOS transistor logic circuit shown below. 2.1 Copy this truth table to your answer sheet and fill it in. Please enter the output state in the truth table (0 or 1) and indicate the state of transistors PT3 and NT3 (ON or OFF) for each row of the table. 2.2 What logic gate does this circuit represent?

Image text
Consider the CMOS transistor logic circuit shown below. 2.1 Copy this truth table to your answer sheet and fill it in. Please enter the output state in the truth table ( 0 or 1 ) and indicate the state of transistors P T 3 and N T 3 (ON or OFF) for each row of the table.
2.2 What logic gate does this circuit represent?

Detailed Answer

0 0

Please enter your email here. You will get email when this question is answered by our tutor.

Doubtrix Logo

Problem is not yet solved!

Click on Notify me to get email when question is answered.

Join Doubtrix with 7-days free trial

  • Icon Correct & Verified Answers
  • Icon No AI-Generated Answers
  • Icon Video Solution for Difficult Questions
  • Icon Work With Experts to Reach at Correct Answers
Notify me Login Sign Up

Similar/Related Questions

The figure below shows a transistor logic circuit constructed with two NMOS transistors and a 10 kΩ pull-up resistor. For this problem, assume that the effective resistance between drain and source is approximately 0 Ω for the ON state and an open circuit for the OFF state. 1.1 Copy this truth table to your answer sheet and fill it in. Calculate the value for Vout and indicate the state of each of the transistors (ON or OFF) for each of the following input combinations. All voltages are referenced to GND. 1.2 What logic gate does this circuit implement? 1.3 What is the power this logic circuit consumes when Vout = 0 V?

Solution
0 0

The circuit shown in Figure 5-1 is a CMOS logic gate of some type. NOTE: Alternative symbols! a) Fill in the table below showing the state of each MOSFET (ON or OFF) and the output voltage for each combination of input states. [10] If 0 V represents a logic low, and +5 V represents a logic high, what is the logic gate function of this circuit? [2] c) Determine the output resistance ROUT of the CMOS gate of Figure 5-1 for each combination of inputs. [8] NOTE: ROUT is the Thevenin Resistance of the Gate. It is the total resistance connected between VDD and the output OR between the output and GROUND, depending on the state of the MOSFET switches. GIVEN : rDSn = 190 ohm and rDSp = 350 ohm d) If this gate exhibits a worst-case Low-to-High (tpLH) propagation delay of 60nsec when driving a given capacitive load, what would you expect the worst-case High-to-Low (tpHL) propagation delay to be?

The circuit shown in Figure 5-1 is a CMOS logic gate of some type. NOTE: Alternative symbols! a) Fill in the table below showing the state of each MOSFET (ON or OFF) and the output voltage for each combination of input states. [10] If 0 V represents a logic low, and +5 V represents a logic high, what is the logic gate function of this circuit? [2] c) Determine the output resistance ROUT of the CMOS gate of Figure 5-1 for each combination of inputs. [8] NOTE: ROUT is the Thevenin Resistance of the Gate. It is the total resistance connected between VDD and the output OR between the output and GROUND, depending on the state of the MOSFET switches. GIVEN : rDSn = 190 ohm and rDSp = 350 ohm d) If this gate exhibits a worst-case Low-to-High (tpLH) propagation delay of 60nsec when driving a given capacitive load, what would you expect the worst-case High-to-Low (tpHL) propagation delay to be?
Solution
1 0

A full-adder is a basic combinational block used to build complex digital circuits. It is basically a 1-bit adder, that computes the sum S and output carry Cout of two input bits, A and B, plus the initial input carry Cin. The truth table of the full-adder is shown below. Cin A B S Cout 0 0 0 0 0 0 0 1 1 0 0 1 0 1 0 0 1 1 0 1 1 0 0 1 0 1 0 1 0 1 1 1 0 0 1 1 1 1 1 1 1. Derive the logic functions for S and Cout. Use only AND, OR, and negation operators in your expressions. You can use whatever method you like (boolean algebra, Karnaugh maps, etc.). 2. Implement both of the functions as static CMOS logic gates (at most followed by an inverter). Draw the transistor-level schematics. You can assume that both the direct and negated versions of each input are available. 3. Size all the devices in the pull-up (PU) networks of your gates, so that the equivalent resistance of each PU is the same as that of a PMOS with W/L = 2. Repeat for the pull-down (PD) networks and a reference NMOS with W/L = 1. When you size a transistor network, you should always consider the input logic values that yield the worst-case equivalent resistance. Neglect the effect of internal node capacitances.
Solution
0 0