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About PCB layout and routing

Regarding PCB layout and routing, today we will not talk about signal integrity analysis (SI), electromagnetic compatibility analysis (EMC), and power integrity analysis (PI). Only talking about manufacturability analysis (DFM), unreasonable manufacturability design will also lead to product design failure....
 

What is a microcontrollers?

Single-chip microcomputer (Microcontrollers) is an integrated circuit chip, which uses VLSI technology to integrate a central processing unit CPU with data processing capabilities, random access memory RAM, read-only memory ROM, various I/O ports and interrupt systems, timers/counter functions (may also include display drive circuit, pulse width modulation circuit, analog multiplexer, A/D converter and other circuits) integrated into a silicon chip to form a small but complete microcomputer system, in the industry It is widely used in the field of control. From the 1980s, from the 4-bit and 8-bit single-chip microcomputers at that time, to the current 300M high-speed single-chip microcomputers....
 

What is a demo board?

The development board (demo board) is a circuit board used for embedded system development, including a series of hardware components such as central processing unit, memory, input device, output device, data path/bus and external resource interface....
 

PCB layout knowledge

Reasonably select the number of PCB layers. Using the middle power layer (VCC layer) and ground layer (GND layer) can play a shielding role, effectively reducing parasitic inductance and parasitic capacitance, and can also greatly shorten the length of wiring and reduce cross-interference between signals....
 

LDO output voltage

Many linear regulators come in fixed output versions as well as adjustable voltage versions, and a few have programmable outputs. For the fixed voltage version, the output voltage is the fixed output voltage. Of course, it is not an absolutely accurate output voltage, but a voltage range, which mainly affects the output accuracy of the power supply....
 

Common Semiconductor Components

Semiconductor components, as the name suggests, are mainly made of semiconductors. Electronic technology is changing with each passing day, and new semiconductor components are emerging in an endless stream. Semiconductor components have always been at the core of electronic components....
 

Power supply anti-reverse connection circuit design

Many projects of hardware engineers are completed on perforated boards, but there is a phenomenon that the positive and negative poles of the power supply are accidentally reversed, causing many electronic components to be burned, and even the entire board is scrapped, and re-soldered A piece....
 

Principles of PCB layout process design and EMC measures

In PCB design, wiring is an important step to complete product design. PCB wiring includes single-sided wiring, double-sided wiring and multi-layer wiring. Parallel interference such as parasitic coupling will affect the stability of the line, and even cause the circuit board to change and fail to work when the interference is severe....