NE555 pin diagram and ne555 circuit application

ne555 is an integrated circuit that is widely used and has great functions. It is a small-scale integrated circuit and is used in many electronic products. The function of ne555 is to use the internal timer to form a time base circuit and provide timing pulses to other circuits. The ne555 time base circuit has two packaging forms, one is a dip dual in-line 8-pin package, and the other is a sop-8 small (smd) package. Other ha17555, lm555 and ca555 are products produced by different companies. The internal structure and working principle are the same.

The internal structure of ne555 can be equivalent to 23 transistors, 17 resistors, and two diodes, which form a comparator, an RS flip-flop, and other groups of unit circuits. In particular, three higher-precision 5k resistors form a resistor. Voltage divider. Provides the reference voltage for the upper and lower comparators. So it is called 555.

ne555 is manufactured by cmos process.

The NE555 pin diagram is introduced as follows

1 Ground GND 2 Trigger 3 Output 4 Reset 5 Control voltage 6 Threshold (threshold) 7 Discharge 8 Power supply voltage Vcc

The application is very wide.

The following is a simple ne 555 circuit application