(完整版)数字电路基础知识外文翻译毕业设计论文

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未经允许切勿外传

原文：

Digital circuit definition:

Completes with the digital signal to the digital quantity carries onthe arithmetic operation and the logic operation electric circuit iscalled the digital circuit, or number system. Because it and the logical processing function, therefore calls thenumeral logic circuit.

Numeral logic circuit classification (according to function minute): 1st, combinatory logic electric circuit

The abbreviation combination circuit, it becomes by the mostbasic logical gate electric circuit combination. The characteristicis: Output value only and then input value related, namely output onlyby then input value decision. The electric circuit , the output condition changes along with the inputcondition change, is similar to the resistance electric circuit, likethe accumulator, the decoder, the encoder, the data selector and so onall belong to this kind.

2nd, succession logic circuit

The abbreviation sequence circuit, it is adds on the feedbacklogic return route by the most basic logical gate electric circuit (tooutput the electric circuit which input) or the component combinationbecomes, lies in the sequence circuit with the combination circuitessence difference to . The sequence circuitcharacteristic is: The output not only was decided by then inputvalue, moreover also the and circuit past condition concerned. It issimilar to containing the stored energy part the inductance or theelectric capacity electric circuit, like electric circuit and so ontrigger, latch, counter, shift register, reservoir all is the sequencecircuit typical component.

Digital circuit characteristic:

1st, simultaneously and the logicoperation function

The digital circuit is take the binary system logic algebra asmathematics foundation, the use binary numeral signal, both can carryon the arithmetic operation and to be able conveniently to carry onthe logic operation (with, or, non-, judgement, comparison, processingand so on), therefore extremely suits to application and so onoperation, comparison, memory, transmission, control, decision-making.

2nd, realization simple, the system is reliable

By binary system underlie numeral logic circuit, simplereliable, the accuracy is rate realization is easy

Integration rate ,service, maintenance nimble convenient, along with the integratedcircuit technology rate is more and more along with small scale integration electric circuit (SSI),center scale integrated circuit (MSI), large scale integrated circuit(LSI), ultra large scale integrated circuit (VLSI) the developmentalso from the part level, the component level, the part level, theboard card level rises to the system level. The electric circuitdesign composition only must use some standards the integrated circuitblock unit connection to become. Also may use the programmableforeword logic array electric circuit regarding the non- standardspecial electric circuit, through programming method realization freelogic function.

Digital circuit application:

Digital circuit and numeral electronic technology widespreadapplication to science and technology each domain and so ontelevision, radar, correspondence, electronic accounting machine,automatic control, astronautics.

数字电路定义：

用数字信号完成对数字量进行算术运算和逻辑运算的电路称为数字电路，或数字系统。由于它具有逻辑运算和逻辑处理功能，所以又称数字逻辑电路。

数字逻辑电路分类（按功能分）：

1、组合逻辑电路