LM555 simple color TV additional remote control circuit

The LM555/LM555C series is a time base circuit from National Semiconductor. China and the world's major integrated circuit manufacturers have similar products to choose from, is a widely used universal integrated circuit. The LM555/LM555C Series is powerful, flexible, and versatile. It can be used to generate time delays and a variety of pulse signals and is widely used in a variety of electronic products.
The 555 time base circuit is available in both bipolar and CMOS versions. The LM555/LM555C series are bipolar. The advantage is that the output power is large and the drive current is up to 200mA. The other CMOS type has the advantages of low power consumption, low power supply voltage, high input impedance, but much lower output power, and the output drive current is only a few milliamperes. There is also a dual time base circuit LM556, 14-pin package with two identical time base circuit units inside.

Simple color TV additional remote control circuit diagram