Gold fingers are a row of equally spaced square pads on a PCB circuit board, with exposed copper and gold plating; they are commonly used for electrical connection pins of boards, LCD connections, mot...
Selection of high-speed analog switch--------The desired effect is that when S4 is closed, S1 S2 S3 are disconnected; when S1 is closed, S2 S3 S4 are disconnected; when S2 is closed, S3 is closed, and...
1. Introduction to RJM8L303 chipRJM8L303 is a low-power security MCU chip launched by Wuhan Ruinajie Electronic Technology Co., Ltd., which adopts an enhanced 80C51 core, has 8KB SRAM and 128KB Flash ...
[size=4]Generally speaking, there are two types of modules: one is used to test the electrical characteristics of the chip and detect whether the chip has problems; the other is used for debugging. Ge...