课程名称︰数位电子与数位电路 课程性质︰选修 课程教师：欧阳明 开课学院：电资学院 开课系所︰资工系 考试日期（年月日）︰2013.01.07 考试时限（分钟）： 试题 : Final Exam of Circuits and Electronics 2013/1/7 For this exam, if not specified, use the following parameters. Use K'_n = 100 μA/V^2, K'_p = 40 μA/V^2, V_TN = 0.6 V, and V_TP = -0.6 V unless otherwise indicated. (1) (5%) Please explain how to read the content from the 1-T dynamic memory cell below. http://i.imgur.com/pqMDxBu.png (2) (5%) Please explain how to write a bit "1" into the content of a 6-T static memory cell below. http://i.imgur.com/qoJVxOB.png (3) (5%) Please explain the function/operation of a Flash memory cell below. http://i.imgur.com/qEY4wOM.png (4) (10%) What are the contents of the ROM below. (All FETs are NMOS). http://i.imgur.com/Y1vYiE8.png (5) (5%) What are the logic functions for Q with input 1 and 2 in the flip-flop below? http://i.imgur.com/rFbVOzX.png (6) (10%) A sequential circuit with two D flip-flops A and B, one input X, and one output Z. (a) Please write the logic equations for the input of two D flip-flops, and output Z. (b) Given input sequence X = 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, what will be the output Z for these input? http://i.imgur.com/o4K2h8Z.png (7) (10%) A sequential circuit with one D flip-flop A, two input X, Y, and one output Z. (a) Please write the logic equations for the input of one D flip-flops and output Z. (b) Given input sequence (X,Y) as (1,1), (1,0), (0,1), (0,0), (1,0), (0,1), (0,0), what will be the output Z for these input? http://i.imgur.com/iOpcVka.png (8) (10%) Design a resistive load inverter to operate from a 2.0 V power supply with a power dissipation of 50 micro W. (micro: 10^(-6)). (9) (5%) Make a truth table and write an expression for the logic function below. http://i.imgur.com/rtJUW6m.png (10) (20%) For the CMOS inverter below, when given the input below, what will be the output (rising voltage)? Please give the output equation and roughly draw the curve. http://i.imgur.com/zmapcYQ.png (11) (15%) (a) What is the logic function that is implemented by the gate below? (c) What are the W/L ratios for the FETs, based on the reference inverter design of Fig. 10. http://i.imgur.com/smY2DbJ.png http://i.imgur.com/guYwYVa.png (Fig. 10 Reference design) --

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