Dear experts,I need a crystal oscillator and a frequency divider to make a square wave signal with a frequency of 60~80HZ, which is used to control an analog switch. Thank you, I need it urgently!...
When 8255A is used as the parallel IO expansion port of 89C51, its port address is selected based on A0 and A1. But I don't quite understand how to determine it, for example, how to determine the addr...
Now the ARM9 development board has Zhou Ligong's ARM9 mobile VXWORK or LINUX operating system. If you want to learn the mobile WINCE operating system, which learning board is better to buy? And what a...
External noise sources [1] are often interference signals generated by motors, computer monitors or other electronic devices. This noise can be controlled by shielding and filtering, removing or turni...
Analog electronics
京公网安备 11010802033920号
EEWORLD
