资源描述:
《数字逻辑电路与系统设计习题答案》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第1章习题及解答1.1将下列二进制数转换为等值的十进制数。(1)(11011)2(2)(10010111)2(3)(1101101)2(4)(11111111)2(5)(0.1001)2(6)(0.0111)2(7)(11.001)2(8)(101011.11001)2题1.1解:(1)(11011)2=(27)10(2)(10010111)2=(151)10(3)(1101101)2=(109)10(4)(11111111)2=(255)10(5)(0.1001)2=(0.5625)10(6)(0.0111)2=(0.4375)10
2、(7)(11.001)2=(3.125)10(8)(101011.11001)2=(43.78125)101.3将下列二进制数转换为等值的十六进制数和八进制数。(1)(1010111)2(2)(110111011)2(3)(10110.011010)2(4)(101100.110011)2题1.3解:(1)(1010111)2=(57)16=(127)8(2)(110011010)2=(19A)16=(632)8(3)(10110.111010)2=(16.E8)16=(26.72)8(4)(101100.01100001)2=(2C
3、.61)16=(54.302)81.5将下列十进制数表示为8421BCD码。(1)(43)10(2)(95.12)10(3)(67.58)10(4)(932.1)10题1.5解:(1)(43)10=(01000011)8421BCD(2)(95.12)10=(10010101.00010010)8421BCD(3)(67.58)10=(01100111.01011000)8421BCD(4)(932.1)10=(100100110010.0001)8421BCD1.7将下列有符号的十进制数表示成补码形式的有符号二进制数。(1)+13(
4、2)−9(3)+3(4)−8题1.7解:(1)+13=(01101)2(2)−9=(10111)2(3)+3=(00011)2(4)−8=(11000)21.9用真值表证明下列各式相等。(1)ABBABAB(2)ABCABAC(3)ABCABC(4)ABACABAC题1.9解:(1)证明ABBABABABABBABAB0000011110111111(2)证明ABCABACABCABCABAC00000001000100001100100001011
5、11101111100(3)证明ABCABCABCABCABC0001100100010110110010000101001101111100(4)证明ABACABACABCABACABAC00011001000101101100100111011111000111001.11用逻辑代数公式将下列逻辑函数化成最简与或表达式。(1)FABACBCACD(2)FAACACDD(3)FBDDDBCADB(4)FABCADBCD(5)FACBCBAC
6、(6)FABBC题1.11解:(1)FABACBCACDABC(2)FAACACDDACD(3)FBDDDBCADBDABBC(4)FABCADBCDABCD(5)FACBCBACACBC(6)FABBCABBCAC或ABBCAC1.13用卡诺图将下列逻辑函数化成最简与或表达式。(1)FABCDABCACD且ABCD0(2)FACAB且A,B,C不能同时为0或同时为1(3)FA,B,C
7、m3,5,6,7d2,4(4)FA,B,C,Dm0,4,6,8,13d1,2,3,9,10,11(5)FA,B,C,Dm0,1,8,10d2,3,4,5,11(6)FA,B,C,Dm3,5,8,9,10,12d0,1,2,13题1.13解:(1)FABCDABCACD且ABCD0FBADAC(2)FACAB且A,B,C不能同时为0或同时为1FBC(3)FA,B,Cm3,5,6,7d2,4FAB(4)FA,
8、B,C,Dm0,4,6,8,13d1,2,3,9,10,11FADACDB(5)FA,B,C,Dm0,1,8,10d2,3,4,5,11FBDAB或FBDAC(6)F