A generator of sinusoidal signal, an oscillator

改进型三点式振荡器 西勒电路 可以改变电路的振荡频率和信号的输出幅度-Improved three-point oscillator Sillery circuit can change the oscillation frequency of the circuit and the signal amplitude of the output

Port B is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port B output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port B pins that are extern

DEscr iptION PT2248 is an infrared remote control transmitter utilizing CMOS Technology. It is capable of 18 functions and a total of 75 commands. Single-shot and continuous keys are available. Furthermore, multiple keying is possible.