首页/ 题库 / [问答题]什么是单片机?MCS-51单片机内部的基的答案

什么是单片机?MCS-51单片机内部的基本组成及引脚功能?

问答题
2022-01-05 17:57
查看答案

正确答案

单片机,又称微控制器或嵌入式计算机,是指集成在一个芯片上的微型计算机,也就是把组成微型计算机的各种功能部件,包括CPU、随机存取存储器RAM、只读存储器ROM、基本输入/输出(I/O)接口电路、定时器/计数器等部件制作在一块集成芯片上,构成一个完整的微型计算机,从而实现微型计算机的基本功能。MCS-51是标准的40引脚双列直插式集成电路芯片,它包括(1)电源及时钟引脚(4个),(2)控制线引脚(4个),(3)并行I/O引脚(32个,分成4个8位口)。


试题解析

相关题目
boost的意思是:help or encourage to increase or improve
eloquent的意思是:fluent or persuasive in speaking or writing

A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.

A cabinet or space containing the controls or valves for the fixed firefighting system must be().
A cabinet or space containing the controls or valves for the fixed firefighting system must be().
当系统显示出错信息:Bad command or file name时,应从()方面进行检查。
什么叫ORS?如何配制?如何使用?
CASE OF DEATH OR SERIOUS INJURY TO A PERSON IN AN ACCIDENT OR SHIPPING DISASTER is().
Mainly east 3 or 4 partly cloudy to overcast occasional rain()slowly south moderate or good.
()any case or suspected case of quarantinable disease,or any case of eruptive disease or any death be discovered,the local quarantine officer must be notified immediately.
Should any case or suspected case of quarantinable disease,or any case of eruptive disease or any death be discovered,the local Quarantine Officer must be()immediately.
Damage to cargo caused by fumes or vapor from liquids,gases, or solids is known as().
Masters are()solely responsible for all damages or accidents of whatever kind resulting from the navigating or handling of their vessels by day or by night.
If he is a common carrier,he is absolutely responsible to the owner of the goods carried ()any loss or damage to them unless caused by an Act of God or the Queen’s enemies,or the inherent vice in the goods themselves,or the negligence of the owner of the goods,or a general average sacrifice.
系统中雷达状态包括Unknown、Operational(or ON)、Failed(or OFF)、Detached。
Owners are to be responsible for loss of or damage to the goods or delay in delivery of the goods only in case the loss,damage or delay has been caused by the improper or negligent stowage of the goods.This means that().
The carrier is liable for loss of or damage to the goods or delay in delivery caused by fire,()the claimant proves that the fire arose from fault or neglect on the part of the carrier,his servants or agents.
Shutdown price(or point,or rule) 停业价格(或停业点、停业原则)
翻译:With Average or With Particular Average(WA or WPA)()
()shall be liable for loss of and damage to the Vessel and/or goods arising or resulting from inaccuracies in stating the description,quantity,weight,measurement or contents.
广告位招租WX:84302438

免费的网站请分享给朋友吧