组合电路如图2.1所示,写出输出函数X的与或逻辑表达式与真值表.

A . A.化简函数表达式 B . B.列出真值表 C . C.说明给定电路的基本功能 D . D.根据最简输出函数表达式画出逻辑图

A . F=B B . F=1 C . F=A D . F=0

A . A.1、2、3、4 B . B.4、3、2、1 C . C.4、2、3、1 D . D.4、1、2、3

A .https://assets.asklib.com/psource/2015110110334621588.jpg B .https://assets.asklib.com/psource/2015110110340299751.jpg C .https://assets.asklib.com/psource/201511011034175015.jpg D .https://assets.asklib.com/psource/2015110110343034391.jpg

A .https://assets.asklib.com/psource/2015110110064980810.jpg B .https://assets.asklib.com/psource/201511011007091323.jpg C .https://assets.asklib.com/psource/2015110110072370179.jpg D .https://assets.asklib.com/psource/2015110110073874078.jpg

<img src='https://img2.soutiyun.com/ask/2020-12-23/977599049532788.png' />

逻辑函数的与或表达式为<img src='https://img2.soutiyun.com/ask/2021-01-07/978885063946485.png' />现要求用二输入与门和异或门两种器件来实现.请写出适合此要求的逻辑表达式,画出逻辑电路图.

<img src='https://img2.soutiyun.com/ask/2020-09-06/96823627984177.png' />

<img src='https://img2.soutiyun.com/shangxueba/ask/17862001-17865000/17862233/2015110209254329436.jpg' /> A．<img src='https://img2.soutiyun.com/shangxueba/ask/17862001-17865000/17862233/2015110209260250234.jpg' /> B．<img src='https://img2.soutiyun.com/shangxueba/ask/17862001-17865000/17862233/2015110209262636595.jpg' /> C．<img src='https://img2.soutiyun.com/shangxueba/ask/17862001-17865000/17862233/201511020926411982.jpg' /> D．<img src='https://img2.soutiyun.com/shangxueba/ask/17862001-17865000/17862233/2015110209265736798.jpg' />

写出图T1.2(a)、(b)两个电路输出的逻辑函数式，并化简为最简与-或表达式。 <img src='https://img2.soutiyun.com/ask/2020-09-18/969313378101375.png' />

<img src='https://img2.soutiyun.com/ask/uploadfile/5469001-5472000/728fa2f4a937a6b22cd60a27fad220cf.png' />

写出如图2.14(a)~(d)所示各电路输出逻辑函数表达式.设电路中各元件的参数满足使晶体管处于饱和及截止的条件. <img src='https://img2.soutiyun.com/ask/2021-01-21/980088391011023.png' />

<img src='https://img2.soutiyun.com/ask/2020-08-19/966716598259878.png' />

电路的输入A、B、C和输出X、Y的波形如图10.91(a)所示,列出真值表,写出表达式,化简为最简式,分析其逻辑功能,并分别用基本逻辑门电路、四选一MUX数据选择器(如图10.91(b))和3-8译码器(如图10.91(c))实现此逻辑电路. <img src='https://img2.soutiyun.com/ask/2021-02-25/983110007893928.png' />

写出图P2.6(a)、(b)所示电路的输出逻辑函数式. <img src='https://img2.soutiyun.com/ask/2020-12-23/977596733800336.png' />

<img src='https://img2.soutiyun.com/ask/2021-01-31/980936844000108.png' />

<img src='https://img2.soutiyun.com/1/2020-10-20/972035165109066.png' />

已知函数L(A，B ，C，D)的卡诺图如图题2.4.2所示，试写出函数L的最简与或表达式。 <img src='https://img2.soutiyun.com/ask/2020-12-30/978170197548466.png' />

<img src='https://img2.soutiyun.com/ask/2021-01-22/980192802617851.png' />