NE555P IC DIP-8 Code: 08935601

The NE555P is an 8-pin precision timer integrated circuit packaged in a dual in-line plastic package (PDIP), manufactured commonly by Texas Instruments. It generates accurate time delays, pulses, and oscillations ranging from microseconds to hours using simple external resistors and capacitors.

Technical Specifications

• Operating Voltage :5V to 16V
• Max Output Current:200mA (can source or sink)
• Supply Current:~10mA
• Operating Temperature Range:0°C to +70°C
• Package Type:8-pin PDIP (Through-hole)

 Pin Configuration

• Pin 1 (GND):Ground reference voltage (0V)
• Pin 2 (Trigger):Low-voltage input sets the internal flip-flop and starts the output pulse.
• Pin 3 (Output):Main output pin (push-pull stage capable of driving up to 200mA).
• Pin 4 (Reset):Active-low pin used to interrupt or reset the timing cycle.
• Pin 5 (Control Voltage):Access to the internal 2/3 V voltage divider network for fine-tuning.
• Pin 6 (Threshold):Compares voltage against 2/3 V to end the timing interval.
• Pin 7 (Discharge):Connects to an external capacitor to safely drain it when switching states.
• Pin 8 :Positive power supply input voltage.

 Operating Modes

• Astable Multivibrator:Free-running oscillator mode used to produce continuous square wave pulses (e.g., clocks, LED flashers, buzzers).
• Monostable Multivibrator:One-shot pulse generator mode used for time delays or creating single timed output pulses upon a trigger event.
• Bstable Multivibrator:Acts as a basic flip-flop switch with two stable states (set/reset) with no automatic timing cycle.
• Common Applications
• Square-wave and pulse generation
• Precision time delay generation
• Pulse-width modulation (PWM)
• LED flashers and tone generators
• Sequential timing circuits