NE555DR SMD Timer IC SOIC-8
The NE555 is one of the most popular and iconic integrated circuits ever produced. It is a highly stable controller capable of generating precise time delays or oscillations in a variety of applications. In the SOIC-8 surface-mount package, it offers the same functionality as its through-hole counterpart in a compact form factor suitable for modern PCB assembly. The timing is determined by an external resistor-capacitor (RC) network, making it incredibly flexible. It can operate in three main modes: monostable (one-shot pulse generator), a stable (free-running oscillator), and bistable (flip-flop). Known for its robustness, simplicity, and low cost, it is a fundamental building block in electronics for hobbyists and professionals alike.
Features :
- Versatile Operating Modes (Monostable, A stable, Bistable).
- Adjustable Duty Cycle.
- High Output Current Sourcing/Sinking Capability.
- Stable Timing Across Temperature Variations.
- TTL-Compatible Output.
- Can Operate in Wide Supply Voltage Range.
Specifications :
| Parameter | Min | Typ | Max | Unit | Condition |
|---|---|---|---|---|---|
| Supply Voltage (Vcc): | 4.5 | – | 15 | V | Recommended |
| Supply Current: | – | 3 | 6 | mA | Vcc=5V, No Load |
| Output Current (Sink/Source): | – | – | 200 | mA | |
| Control Voltage: | – | 3.3 | 4 | V | Vcc=5V |
| Threshold Voltage: | – | 3.3 | 4.2 | V | Vcc=5V |
| Trigger Voltage: | – | 1.6 | 2.2 | V | Vcc=5V |
| Timing Error (Initial): | – | 1 | – | % | Vcc=15V |
| Maximum Frequency: | – | >500 | – | kHz |
Pinout:
| Pin | Name | Function |
|---|---|---|
| 1 | GND | Ground (0V) |
| 2 | TRIG | Trigger Input (Active Low) |
| 3 | OUT | Output |
| 4 | RESET | Reset Input (Active Low) |
| 5 | CTRL | Control Voltage (Modulates threshold) |
| 6 | THR | Threshold Input |
| 7 | DIS | Discharge (Open collector output) |
| 8 | VCC | Positive Supply Voltage (4.5-15V) |
Footprint:
Applications:
- Precision Timing and Delay Generation.
- Pulse Width Modulation (PWM).
- Tone and Signal Generation.
- Sequential Timing.
- LED Flashers and Blinkers.
- Switch Debouncing Circuits.
- Voltage-Controlled Oscillators (VCO).
- Educational and DIY Electronics Projects.
Packages:
- 1x NE555 SMD Timer IC SOIC-8.
Reviews
There are no reviews yet.