Pin diagram and pin description of 555 timer: 555 timer has eight pins, and the voltage input terminal of each pin is different. Should be expressed by UCC. Today, we will learn about the pin diagram of 555 timer from these eight pins.
The 1 pin is grounded, 2 pins are used as the input port of the trigger, and 3 pins are used as the output port, which can be controlled in the output state. After the 3-pin output sensor receives the signal, the 6-pin and 2-pin will be controlled.
When the 2-pin flip-flop detects an input higher than A 1, it will be reset. Of these eight feet, 2 feet and 6 feet are complementary feet, and 2 feet have leveling function below voltage, which has no effect on elegance. At this time, pin 3 is in a high voltage level state; Pin 6 is a threshold port, which has an effect on the high voltage level and has no effect on the low voltage level. The voltage of pin 3 is very close to the power supply voltage, and its maximum output current can reach 200mA.
Pin 4 is a reset port, which shall not be less than 0.4 volts. Pin 2 and pin 6 will make the output of pin 3 in a low level state in any state. Pin 5 is the control port of the whole timer, pin 7 is the discharge port of the timer, and pin 3 is in a synchronous state, especially their output levels are the same, but there is still a difference between them, that is, pin 7 has no output current, so pin 3 is defined as real high (low) and pin 7 is defined as virtual high (low).
After understanding the pin diagram of the 555 timer, let's take a look at the 555 timer. Pin diagram of 555 timer is an integrated circuit, which is widely used in 555 timer:
1 and 555 timers are applied to Schmitt trigger, especially in the system interface of TTL and in the shaping circuit.
A 2,555 timer is applied to form a harmonic oscillator, which can be combined with the combined signal to form a circuit.
3, 555 timer is applied to monostable flip-flop, which can delay some timing switches to some extent.
After introducing the pin diagram of 555 timer and its application, do you have a general understanding of the pin diagram of 555 timer? I hope it will be helpful to those who want to know the pin diagram of 555 timer.
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