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1. How to switch between different modes of ARM processor? A: The other six modes besides the user mode are called privileged modes. In these modes, programs can access all system resources and swi...[Details]
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1 DS1991 Overview iButton (information button) The information button is a 16mm diameter micro intelligent information carrier encapsulated in an oblate stainless steel shell. It has two-way communica...[Details]
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What is the screen size of the laptop you are currently using? Is it an 11-inch mini notebook, a 13.3-inch regular office notebook, or a 15-inch portable workstation? After years of regular and lac...[Details]
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Recently, a new realme phone with model number RMX2173 was connected to the network. It is expected that this phone is the hot-selling model that realme Vice President Xu Qi mentioned will be release...[Details]
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Nowadays, electromagnetic flowmeters have been widely used, but in order to make better use of them, we cannot ignore their detection. The following article will talk about several special tests about...[Details]
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Figure 1: Near Field Acoustic Holography and Scanning Measurement System with Reference Microphones
Challenge: Develop a portable Near Field Acoustic Holography (NAH) system to measure ...[Details]
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Electronic components are the basis of electronic products. Understanding the types, structures, and performance of commonly used electronic components and being able to choose them correctly is the ...[Details]
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The first and second industrial revolutions were both energy revolutions, and the third industrial revolution is a digital revolution. What kind of sparks will be created if the energy revolution a...[Details]
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0 Introduction
Low-light-level video systems are increasingly used in night vision technology. However, due to the low target illumination, close target and background reflectance, and poor observa...[Details]
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The mobile market is entering an era of rapid development, with the emergence of new services driving an unprecedented demand for new applications and features. Mobile phone users demand products t...[Details]
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On August 31, Lingdong Microelectronics' "2021 Lingdong MM32 Collaboration Conference" was successfully held in Shenzhen. Focusing on the theme of "A long and arduous journey, Lingdong has made great...[Details]
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Semiconductor Memory
Chapter 9 Semiconductor Memory
9.1 Overview
9.2 Read-only memory
9.2.1 Structure and working principle of fixed ROM
1. Circuit composition
2. Reading
9...[Details]
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Powerbox is one of Europe's largest power supply companies and has been a leader in providing optimal power solutions for demanding applications for four decades. The company has announced the launch...[Details]
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The N2 plant of Jinghe Integrated Circuit Co., Ltd. located in Hefei is about to start construction. According to official information, the N2 plant will complete feasibility studies and project ap...[Details]
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The working principle is as follows: R1, R2, D1, Q1, D2 and C3 form a bootstrap startup circuit, and the startup voltage Vc is obtained to power IC1, IC2 and IC3 respectively. After the circuit is st...[Details]
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