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Anonymous users2024-02-08A single-chip microcomputer is a kind of chip, the scientific name is microcontroller (MCU), and engineers in the mainland are used to calling it single-chip microcomputer.
To put it simply, it is a chip that integrates a computer's CPU, bus, input and output, and memory. But it is not a substitute for a computer, because it integrates a relatively simple computer structure. For example, its memory is generally only 128B or a few hundred meters.
There are many types of single-chip microcomputer chips, and the structure produced by different manufacturers is different. The number of digits is not the same. In the advanced world, there are 4-bit, 8-bit, 16-bit, and 32-bit microcontrollers.
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Anonymous users2024-02-07A single-chip microcomputer, also known as a single-chip microcontroller, is not a chip that completes a certain logic function, but integrates a computer system into a chip. In a nutshell: a chip becomes a computer.
It is small in size, light in weight and cheap, which provides convenient conditions for learning, application and development. At the same time, learning to use a microcontroller is the best choice to understand the principles and structure of computers.
The single-chip microcomputer also uses modules with similar functions to the computer, such as CPU, memory, parallel bus, and storage devices with the same function as the hard disk, the difference is that the performance of these parts is much weaker than our home computer, but the price is also low, generally not more than 10 yuan. It is enough to use it to do some control appliances and other not very complicated work. It can be seen in the automatic drum washing machine, smoke hood, VCD and other household appliances we use now..
It is mainly used as the core component of the control part.
It is a kind of first-class real-time control computer, which is on-site control, which requires strong anti-interference ability and low cost, which is also the main difference from offline computers (such as home PCs).
The microcontroller is programmatic and can be modified. Different functions are achieved through different programs, especially special and unique functions, which require a lot of effort from other devices, and some are difficult to do with great effort. If a not very complicated function is done with pure hardware such as the 74 series developed in the 50s in the United States, or the CD4000 series in the 60s, the circuit must be a large PCB board!
But if you use a series of microcontrollers that were successfully put on the market in the United States in the 70s, the result will be very different! Just because the program you write can achieve high intelligence, high efficiency, and high reliability!
Single-chip microcomputer is a kind of integrated circuit chip, which is a small and perfect microcomputer system composed of a small and perfect microcomputer system composed of a silicon wafer composed of ultra-large-scale integrated circuit technology, which integrates the best processor CPU RAM, read-only memory ROM, a variety of IO ports and interrupt systems, timers and other functions (may also include display drive circuits, pulse width modulation circuits, analog multiplexers, AD converters and other circuits) into a silicon wafer, which is widely used in the field of industrial control. From the 80s of the last century, from the 4-bit and 8-bit single-chip microcomputers at that time, to the current 32-bit 300m high-speed single-chip microcomputer.
1. The microcontroller is a typical embedded microcontroller (microcontrollerunit), which is composed of combinators, controllers, memory, input and output devices, etc., which is equivalent to a micro computer. >>>More
void timers（） interrupt 0count++;
tr0=1； >>>More
51 single-chip microcomputer is relatively simple, you can weld a minimum subsystem on the empty board, and then add a running lamp module, these lines are relatively simple, you can do it yourself. If you say that you want to draw a PCB board and then open the board, it is more expensive, not enough per square meter according to one square meter, about three or four hundred yuan per square meter, but if you want to mass produce, you can open the board. In addition, the smallest subsystem and the flow lamp module are welded on two small boards, and then connected by wires to achieve functional modularization.
Of course, the CPU is complicated! Otherwise, there wouldn't be just two CPU producers in the world! The schematic diagram is simple, but it is much more complicated to reach the nanoscale semiconductor technology!