thw_mod1_no4

thw_mod1_no4 - your answer to the nearest Ohm). Minimum R =...

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ECE 270 Introduction to Digital System Design Fall 2011 TakeHomaWork for Module 1 – Due 9/07/2011 Given the following circuit: (a) [10 points] For the case of BOTH inputs of BOTH gates driven LOW: If the off- state leakage current of each of the 74x03 open-drain NAND gate outputs is +10 μ A, and the I IH required by the 74x04 inverter is +500 μ A, determine the maximum value of R that will produce a V IH of at least 4.4 volts at the 74x04 input. Maximum R = _________ (b) [10 points] For the case of both inputs of ONE gate driven HIGH and both inputs of the other gate driven LOW: If the I OLmax of the 74x03 is specified to be +8 mA and that the I IL required by the 74x04 inverter is -0.4 mA, determine the minimum value of R the will produce a V IL of no more than 0.4 volts at the 74x04 input (assume the same off-state leakage current as Part (a), and round
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Unformatted text preview: your answer to the nearest Ohm). Minimum R = _________ R 7403 1 2 3 VCC O.D. 7403 1 2 3 7404 1 2 O.D. 5 V ECE 270 Introduction to Digital System Design Fall 2011 (c) [10 points] If you were guest starring on the hypothetical TV series Power of 10 2 and you were forced to choose one of these two values (i.e., the Maximum R or the Minimum R), which value would you choose, and why ? [2 pts] Which value would you pick ( circle one ): Minimum or Maximum [8 pts] Why? Name: __________________________________________ Class No: __ __ __ __ - __ Signature: ______________________________________ Score: _______ / 30 Your Class No. is the last four digits of your PUID followed by the first character of your last name....
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thw_mod1_no4 - your answer to the nearest Ohm). Minimum R =...

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