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74hc138译码器工作原理

WebApr 19, 2024 · 74HC138与74LS138这两个芯片都是74系列的逻辑芯片,并且后缀型号相同,它们的功能是一样的,区别之处在于这两个芯片的工作电压范围、逻辑电平等。. 74HC138与74LS138都是3-8线译码器,它们的作用是将输入的二进制数据通过芯片的译码之后,按照十进制使对应的 ... WebMay 6, 2024 · Shift Register / Encoder. Forum 2005-2010 (read only) General Frequently-Asked Questions. mcsilvio July 6, 2010, 4:24am #1. Hi there, I bought an 8x8 LED matrix. The tutorial says to wire up each used pin of the led matrix to an individual out on the arduino. To me this seems a little basic (which I'm sure is the point of the tutorial), but I ...

3-8译码器--74HC138芯片(总结)_Mr庞.的博客-CSDN博客

WebThe 74HC138; 74HCT138 decodes three binary weighted address inputs (A0, A1 and A2) to eight mutually exclusive outputs (Y 0 to Y 7).The device features three enable inputs (E 1, E 2 and E3).Every output will be HIGH unless E 1 and E 2 are LOW and E3 is HIGH. This multiple enable function allows easy parallel expansion to a 1-of-32 (5 to 32 lines) … WebHello, we have implemented in Proteus ping-pong game. Arduino´s port 2,3 and 4 allow the 74HC138 chip keep counting from 1 to 8 indefinitely, functioning as ... sennhofweg winterthur https://newlakestechnologies.com

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WebThe 74HC138; 74HCT138 features three enable inputs: two active LOW (E 1 and E2) and one active HIGH (E3). Every output is HIGH unless E1 and E2 are LOW and E3 is HIGH. … WebAug 13, 2024 · 74hc138与74hc238逻辑功能一致,只不过74hc138为反相输出。 CD74HC138,CD74HC238和CD74HCT138,CD74HCT238是高速硅栅CMOS解码 … WebOct 27, 2024 · 单片机74HC138译码器应用原理图及真值表. 设计单片机电路的时候,单片机的 IO 口数量是有限的,有时并满足不了我们的设计需求,比如我们的 STC89C52 一共 … sennhti headphones

硬件使用74hc138的C语言程序,单片机74HC138三八译码器的原理 …

Category:嵌入式硬件入门——74HC138译码器(三个IO实现8选1 ...

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74hc138译码器工作原理

Shift Register / Encoder - Frequently-Asked Questions - Arduino Forum

WebFeb 2, 2024 · 74HC138功能. CD74HC138,CD74HC238和CD74HCT138,CD74HCT238是高速硅栅CMOS解码器,适合内存地址解码或数据路由应用。. 74HC138作用原理于高性 … Web74hc138集成译码器功能表. //科学百科任务的词条所有提交,需要自动审核对其做忽略处理.

74hc138译码器工作原理

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http://www.dzkfw.com.cn/jichu/shuzi/1065.html Web74HC138; 74HCT138 3-to-8 line decoder/demultiplexer; inverting Rev. 9 — 13 August 2024 Product data sheet 1. General description The 74HC138; 74HCT138 decodes three …

Web本书将采用一个全新的方式,带领你从零基础开始学习单片机和c语言编程,不仅让你在学习的过程中认识常用的电子元器件及其识别方式,而且使你快速地掌握8051单片机原理以及如何使用c语言来为其编写程序。当阅读完本书的全部内容后,你将会真正体会到8051单片机的经典传承和“电子diy”的 ... WebJun 1, 2024 · 74hc138大家应该比较熟悉,关于它的应用电路你了解多少呢?它在电路中是一个什么样的角色定位呢?本文主要为你介绍关于74hc138电路图汇总分析以及74hc138 …

WebThe 74HC138; 74HCT138 decodes three binary weighted address inputs (A0, A1 and A2) to eight mutually exclusive outputs (Y0 to Y7). The device features three enable inputs (E1, E2 and E3). Every output will be HIGH unless E1 and E2 are LOW and E3 is HIGH. This multiple enable function allows easy parallel expansion to a 1-of-32 (5 to 32 lines) WebMay 22, 2016 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...

WebApr 6, 2024 · The 74HCT138 is a 3-to-8 decoder. All outputs are driven high except the code-selected output which is driven low. The ULN2803 contains 8 Darlington transistor drivers with input base resistors and open-collector outputs. A logic high input drives the output to 0.8..1 V. A logic low input lets the output float at high impedance.

WebMay 24, 2012 · 74HC138功能: CD74HC138 ,CD74HC238和CD74HCT138 , CD74HCT238是高速硅栅CMOS*器,适合内存地址*或数据路由应用。. 74HC138 作用 … senn hs-general educationWebOct 1, 2013 · cd4511是一个用于驱动共阴极 led (数码管)显示器的 bcd 码—七段码译码器,特点:具有bcd转换、消隐和锁存控制、七段译码及驱动功能的cmos 电路能提供较大的拉电流。 可直接驱动led显示器。 cd4511 是一片 cmos bcd—锁存/7 段译码/驱动器,引脚排列如图 2 所示。 sennin foundationWebOct 15, 2024 · 74hc138简介. 74hc138是一款高速cmos器件,74hc138引脚兼容低功耗肖特基ttl(lsttl)系列。74hc138译码器可接受3位二进制加权地址输入(a0, a1和a2),并当 … sen nightingales playlistWebAug 5, 2024 · V1.0 最基本的译码功能. 现在为了控制这个门电路的开关,我们还需要加一个使能区,对这个门电路的有效输出进行控制。. (为了让最后的图看起来和真实情况一 … senniland shopWebDec 24, 2024 · 图1 74HC138 应用原理图. 从这个名字来分析,三八译码器,就是把3种输入状态翻译成8种输出状态。. 从图1所能看出来的,74HC138 有1~6一共是6个输入引脚, … senniheiser wired headphones reviewsWeb百度百科是一部内容开放、自由的网络百科全书,旨在创造一个涵盖所有领域知识,服务所有互联网用户的中文知识性百科全书。在这里你可以参与词条编辑,分享贡献你的知识。 senninger careerWebJan 30, 2024 · 3-8译码器--74HC138芯片(总结) weixin_57458986: 共阴共阳不一样的. Jetson Nano——安装pip及dev并换pip源. 不正经的kimol君: 收获很多,谢谢大佬的分享. 3-8译 … senning atrial baffle