maxim semiconductor

In the structure of the computer, there is a very important part, is the memory. Memory is used to store programs and data of the parts, for the computer, with memory, only memory function, to ensure normal work. There are many kinds of memory, according to its use can be divided into main memory and auxiliary memory, main memory also called internal memory (memory, RTHK called memory). Memory is also called main storage, is the CPU can directly address the memory space, made of

much, the computation speed is slow. This period, the computer is mainly used in scientific calculation and military aspects, the use is very not common. The second generation is the transistor computer, about from the mid 1950s to the mid 1960s, the use of transistors as the main device, the internal memory mainly uses magnetic chip, the external memory began to use the disk, the input and output mode has a great improvement. The high-level language is beginning to be used, and the operating s

of operations, described below. There are two commonly used sensors, one is CCD (charge coupling) original, one is CMOS (metal oxide conductor) original. GT;GT;CCD (Charge coupled device), charge-coupled device sensor: Made from a high-sensitivity semiconductor material that transforms light into an electric charge and converts it into an electrical signal through a analog-to-digital converter chip. The CCD is made up of a number of independent p

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FC, SC, ST, D4, DIN, Biconic, MU, LC, and MT. The Pin End Faces of connectors can be divided into FC and PC (UPC) and APC. Common optical fiber connectors: FC/PC optical fiber connectors, SC optical fiber connectors, and LC optical fiber connectors. 34. In the optical fiber communication system, please name the following items. AFC, FC adapter ST type adapter SC type adapter FC/APC, FC/PC type connector SC type connector ST type connector LC Type jumper MU type jumper single mode or multimode j

development save time and effort, is expensive point.Apple SwiftcycloneSince IPhone4 began, the CPU began to play its own name, the first named A4, in fact, is a ARMv7 instruction set, CORTEX-A8 architecture design of the CPU, to IPhone5 A6 began to design their own swift architecture, With the armv7-a instruction set, performance is between CORTEX-A9 and Cortex-a15, and ARMV8, the first to use the 64-bit Cyclone architecture for A7, now has a more robust A8 processor, thanks to the second gene

First, the hardware compositionMotherboard CPU hard disk memory graphics card NIC Optical drive chassis monitor Keyboard mouseSecond, Hardware introduction1. CPU ProcessorClock frequency: The CPU core works64-bit technology: Processor 1 times can run 64bit of dataCache: Alleviates the speed difference between CPU and memoryMulti-core technology: one processor on a single semiconductor has multiple processing cores of the same functionInterface: Number

1. Introduction to camera imaging principles Camera Workflow The imaging principle of camera can be summarized as follows: The scene (scene) is projected to the image sensor surface through an optical image generated by the lens (lens), and then converted into an electrical signal, after A/D (modulus conversion) after conversion, it becomes a digital image signal, which is then sent to the digital signal processing chip (DSP) for processing, then transmitted to the CPU through the IO Interface f

I have never been clear about the difference between flash and Rom and Ram, today I have nothing to do, reproduced an article; http://blog.chinaunix.net/space.php? Uid = 22342666 Do = Blog id = 1774747 Common memory concepts: Ram, SRAM, SDRAM, Rom, EPROM, EEPROM, and Flash memory can be divided into many types, including RAM (Random Access Memory) based on whether power loss data is lost) and Rom (read-only memory), where Ram access speed is relatively fast, but data will be lost after power l

important, and may neglect the common problems, such as the user interface, the load-Save function, and compatibility with the hardware supported by the plan. Programmers often don't want to deliver code to testers too early-they don't want to hear the vulnerabilities they already know, and testers are very likely not to want to test things that basically don't work. But the tester's job is to find these problems. If programmers want to see the results as soon as possible, they should regard th

is the joint venture between a Japanese Iron and Steel Company and a semiconductor manufacturer in the United States, which produces the main silicon wafers used to manufacture semiconductor logical gate arrays and remote communication ultra-large integrated circuits. This is the first example of steel manufacturers entering the semi-customized logic chip manufacturing industry. The Iron and Steel Company

or comments, or as the author of the writing, at least he should be an important member of the Review Committee. Standardize the terms and technical terms in the business field. Domain experts and technical experts must communicate with each other in a semantic environment without ambiguity. If there are differences in understanding, we must resolve them in a timely manner and establish terminology standards through discussion. It is hard to imagine that people with different languages can coo

, and the common mode voltage that may be coupled in the regulator output. For example, when selecting a linear regulator, you must carefully determine the circuit power requirements and the output characteristics of the voltage regulator. Taking the National Semiconductor Company lm340/lm78xx series three-end Positive Pressure regulator as an example, this type of linear regulator is a standard device with basic design elements in the industry. In g

Serial number Abbreviations Component English name Chinese component name 1 Res semi Semiconduresistor Semiconductor Resistance 2 Cap semi Semiconducapacitor Semiconductor capacitor 3 Cap VaR Variable or adjustable Capacitor Variable or adjustable Capacitance 4 Cap pol1 Polarized capacitor (radial) Polarization capacitance (rad

1. drifting current When a certain electric field is applied to a semiconductor, the current flows through the semiconductor. When a particle with a dot moves in the electric field, the resulting current becomes the drifting current. 2. Mobility When the electric field strength is low, the carrier's drift speed V is proportional to the electric field strength E. The proportional constant is called the

, 9210i, and 9290;32-bit Proteus CPU arm-9 104 MHz:Representative mobile phones: Nokia 3600, 3620, 3650, 3660, 6600, 7650, N-Gage, N-gage qd;32-bit Proteus CPU arm-9 123 MHz:Representative mobile phones: Nokia 3230, 6260, 6670, and 7610;32-bit Proteus CPU arm-9 150 MHz:Representative mobile phones: Nokia 6620 and 7710 ArmThe company specializes inTechnology chip design and development companies, as intellectual property suppliers, do not directly engage in chip production, by transfer design lic

be an important member of the Review Committee. Standardize the terms and technical terms in the business field. Domain experts and technical experts must communicate with each other in a semantic environment without ambiguity. If there are differences in understanding, we must resolve them in a timely manner and establish terminology standards through discussion. It is hard to imagine that people with different languages can cooperate happily. The solution is to join a translator. It builds a

called a piezoelectric resistor abroad. The so-called pressure resistance effect is the effect that the resistivity of semiconductor materials changes with the change of mechanical stress. It can be made into various torque meters, semiconductor microphones, pressure sensors, etc. The main varieties include silicon-sensitive resistors and selenium alloy force-sensitive resistors. Relatively speaking, the a

converter (for example, when estimating the heat dissipation condition of a device, you must know the forward pressure drop of the tube, although the value of this parameter may be small), it is commonly used to represent another ideal feature, as shown in 2 (a), corresponding equivalent circuit 2 (B ). In Figure 2 (B), E represents the forward conduction bias of the diode, and RD represents the equivalent resistance when the positive wizard is connected. As a basic principle, we will use the i

layer. The personality layer is a simulation layer that provides RTOS APIs for client software across the microkernel. The personality layer translates RTOS calls into microkernel calls to achieve the same results. In this way, we allow the source code written for such RTOS to run under the Symbian OS, which can be slightly modified or not modified. For more details about the personality layer and how the microkernel supports it, see Chapter 17th: Real-Time. 1.3.2.5 ASSP/variable extension CPUs