数字设计 瑞典皇家理工学院试卷及答案.docVIP

电子科技大学20 -20 学年第 学期期 考试 卷 课程名称：_数字电路_ 考试形式： 开卷 考试日期： 20 年 月 日 考试时长：_120分钟 课程成绩构成：平时 %， 期中 %， 实验 %， 期末 % 本试卷试题由__4__部分构成，共__11_页。 题号 一 二 三 四 五 六 七 八 九 十 合计 得分 （试题题号按实际题量填写 ） 选择题、填空题等客观题模板如下：（正文请用宋体5号字） 一、选择题（共69分，共 23题，每题3 分） 1. If the function F(X,Y,Z) is represented by the ON SET (X,Y,Z(0,3,5,6), then the complement of this function F?(X,Y,Z) is represented by the ON SET: （B ） (A) (X,Y,Z(0,3,5,6) (B) (X,Y,Z(1,2,4,7) (C) (X,Y,Z(1,2,4,6) (D) (X,Y,Z(1,3,5,7) (E) none of the above 2. The XOR property listed below that is NOT true is: （ C ） (A) X ??0 = X (B) X ??1 = X? (C) X ??X = X (D) X ??X??= 1 (E) none of the above The following K-map applies to question 3: 3. Assuming the availability of both true and complemented variables, the simplest (lowest cost) realization of this function is depicted by the following circuit：( B ) The following circuit applies to questions 4 through 7: 4. Expressed in a minimum sum-of-products form, the function realized by this circuit is: （ B ） (A) X·Y + X·Z + X?·Z (B) X?·Z??+ Y?·Z? (C) Y·Z??+ Y?·Z??+ X?·Y? (D) Z + X·Y (E) none of the above 5. The ON-SET of the function realized by this circuit is（ A ） (A) (X,Y,Z(0,2,4) (B) (X,Y,Z(1,3,5,6,7) (C) (X,Y,Z(3,5,7) (D) (X,Y,Z(0,1,2,4,6) (E) none of the above 6. Expressed in a minimum product-of-sums form, the function realized by this circuit is: （ C ） (A) (X+Z)·(Y+Z) (B) (X?+Y?)·(X+Y)·(Y+Z?) (C) Z?·(X?+Y?) (D) (X?+Z?)·(Y?+Z?) (E) none of the above 7. Assuming the availability of only true variables, realization of this same function using only 2-input NOR gates would require: （ C ） (A) two (2-input NOR) gates (B) three (2-input NOR) gates (C) four (2-input NOR) gates (D) five (2-input NOR) gates (E) none of the above 8. The expression (X+Y)·(X+Z) = X + Y·Z is an example of: （ A ） (A) distributivity (B) commutitivity (C) associativity (D) consensus (E) none of the above Table 1 circuit applies to questions 9 through 10. 9. The DC nois