The NE555 Timer IC is one of the most widely used integrated circuits in electronics. It is designed to generate accurate time delays, oscillations, pulses, and PWM signals. The NE555 can operate in Astable, Monostable, and Bistable modes, making it ideal for timers, LED flashers, tone generators, PWM controllers, motor speed control, and DIY electronics projects.
Features
- Full Name: NE555 Precision Timer IC
- Operates in Astable, Monostable, and Bistable modes
- Wide operating voltage range
- High output current capability
- Adjustable timing using external resistor and capacitor
- TTL compatible output
- Stable timing performance
- Low power consumption
- 8-pin DIP package
- Easy to use in hobby and industrial applications
Specifications
| Specification | Value |
| Product Type | Timer Integrated Circuit |
| Model | NE555 |
| Package | DIP-8 |
| Operating Voltage | 4.5V–16V DC |
| Output Current | Up to 200mA |
| Timing Modes | Astable, Monostable, Bistable |
| Frequency Range | Up to 500 kHz (Approx.) |
| Operating Temperature | 0°C to +70°C |
| Mounting Type | Through-Hole |
Pin Configuration
| Pin | Function |
| 1 | GND (Ground) |
| 2 | TRIG (Trigger) |
| 3 | OUT (Output) |
| 4 | RESET |
| 5 | CTRL (Control Voltage) |
| 6 | THR (Threshold) |
| 7 | DISCH (Discharge) |
| 8 | VCC (Power Supply) |
Applications / Uses
- LED flasher circuits
- Adjustable timer circuits
- PWM signal generation
- Motor speed controllers
- Pulse generators
- Square wave oscillators
- Tone and buzzer generators
- Delay timer circuits
- Arduino and DIY electronics
- Educational electronics projects
Advantages
- Easy to use
- Low cost
- Stable timing performance
- Wide supply voltage range
- High output drive capability
- Versatile operating modes
- Reliable and durable
- Extensive application support
Size
| Specification | Value |
| Package Type | DIP-8 |
| Body Length | Approx. 10 mm |
| Body Width | Approx. 6.5 mm |
| Overall Height | Approx. 4 mm |
| Pin Pitch | 2.54 mm |
| Weight | Approx. 1 g |
Package Includes
- 1 × NE555 Timer IC (DIP-8)
Note: The NE555 requires external resistors and capacitors to set the desired timing or oscillation frequency. It is compatible with 5V and 12V circuits and remains one of the most versatile ICs for timer, oscillator, and pulse generation applications.






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