The Ultimate Guide to NE555N VS NE555P


Overview of NE555N and NE555P


The NE555 is a highly stable IC in which the time delay and/or oscillation can be controlled with external resistors and capacitors. This chip was first made commercially available by Signetics in 1972. It is well suited for a variety of applications such as a timer or pulse generator.

NE555N vs NE555P

The NE555N and NE555P are essentially the same ICs with the main difference being the packaging:


  • Packaged in a plastic DIP (Dual In-line Package).
  • The PIN count for this package is 8. This is to be used in through-hole soldering.


  • Also packaged in a plastic DIP.
  • Has the same 8 PIN count.
  • To be used in through-hole soldering.

The "N" and the "P" don't signify any difference in the operation of the NE555 timer itself. They might only indicate a minor procedural or material change in the manufacturing process depending on the manufacturer. The two types can be used interchangeably in a circuit, and they share identical performance characteristics.

Features of NE555 Timer:

  • Direct replacement for SE555/NE555.
  • Timing from microseconds through hours.
  • Operates in both astable and monostable modes.
  • Output current can source or sink 200 mA.
  • Adjustable duty cycle.
  • TTL compatible.
  • Temperature stability better than 0.005% per degree Celsius.
  • Usually, supply voltage in the range 4.5V to 16V.

Applications of NE555 Timer:

  • Precision timing.
  • Pulse generation.
  • Time delay generation.
  • Pulse width modulation (PWM) circuits.
  • Sequential timing.
  • Missing pulse detection.

Despite being an old chip, the NE555 timer is still widely used due to its reliability, versatility, and cost-effectiveness. Always refer to the manufacturer's datasheet for precise details.


NE555N vs NE555P: Differences

The NE555N and NE555P are both versions of the NE555, a common and versatile timer IC. This integrated circuit can be used for a variety of applications, including timing, pulse generation, and oscillation tasks.

"N" and "P" in the part name, NE555N and NE555P, most often refer to the type of package and material used for the IC. Both NE555N and NE555P come in plastic, Dual-In-Line Package (DIP), and are typically designed for through-hole mounting on the printed circuit board.

As of my last training data in September 2021, those designations do not suggest any functional, performance, or quality differences between the chips. Both ICs are identical electronically, with the same pinouts and operational characteristics.

However, different manufacturers may have individual ways to name their products or versions of it, so it's possible there may be some variations between specific NE555N and NE555P parts from some manufacturers. Always consult the manufacturer's datasheets or other documentation for specific details in order to understand the exact specifications, capabilities, or any other particularities.


NE555N vs NE555P: Similarities


The NE555N and NE555P integrated circuits share a substantial number of similarities, as they are essentially the same device but may come in slightly different packaging or from different processing batches. Here's a rundown of their commonalities:


  • Both are timers that can be configured in astable or monostable modes for a variety of applications like pulse generation, timing, and delay.


  • They have an identical 8-pin configuration with the same pin functions, including power supply, ground, trigger, output, reset, control voltage, threshold, and discharge pins.

Electrical Characteristics:

  • Operating voltage range: Typically 4.5V to 15V (up to 16V for some manufacturer specifications)
  • Source or sink current: Can handle output currents up to 200 mA
  • Timing accuracy: High stability and timing precision that can be set by external resistors and capacitors
  • Temperature stability: Typically 0.005% per degree Celsius


  • Both can drive relay coils, LED displays, and other high-current loads directly (albeit with appropriate current limiting to avoid exceeding the device's specifications).


  • NE555N and NE555P are generally available in the same DIP (Dual In-Line Package) form factor, which is suited for through-hole mounting.


  • Serve similar use cases like timers in washing machines, dimmers in lighting systems, or clocks in computing hardware.


  • The two versions are usually interchangeable in circuit designs unless defined by very specific operational requirements set by the manufacturer.

The differences, if any, between the NE555N and NE555P would typically be found in the suffixes of their part numbers, which sometimes denote differences in the commercial or industrial temperature ranges, packaging materials or processes, and possibly the place of manufacturing or distribution.

It's crucial to reference the datasheets provided by the producer for the precise specifications of each IC to ensure that they meet the required standards for a given application. For any serious development, always verify with the current technical documents since specifications can change or be updated after my training cut-off in September 2021.


Features Comparison


Apologies for any possible confusion, but could you please clarify which products or devices you would like me to compare? It seems like there's been a missed context or a potential misunderstanding from the previous interactions.

For the comparison of NE555N and NE555P, I mentioned earlier, the two parts are essentially the same device and thus have very similar attributes. The differentiation in the letters 'N' and 'P' can often refer to packaging differences or may indicate a different range of operational temperature, but usually, these differences don't affect their functionality or features per se since core features of these 555 timer chips are the same.

On the other hand, if you are referring to a different set of devices to compare, please provide the names or detailed references, and I'd be happy to assist you with the feature comparison.


Applications Comparison

I apologize for any confusion, but I see a potential misunderstanding due to the information not being precise. To help you efficiently, could you please specify the products or components you want compared based on their applications?

If you're referring back to the LM358 and LM393, their applications have been detailed in the previous responses. For other components, specifically NE555N and NE555P that were mentioned previously, they are both fundamentally 555 timer ICs and would thus share essentially the same applications, often used for generating time delays, pulse generation, oscillator applications, and other versatile uses.

However, if you meant a different pair of devices or components, please provide the names or detailed references, and I'd be happy to assist with an application comparison.



As there seems to be some ongoing confusion regarding the context, I will provide general conclusions on the applications of the earlier mentioned components—the LM358 operational amplifier, the LM393 comparator, and the NE555 timer.

LM358 Operational Amplifier: The LM358 is designed for applications requiring a continuous range of analog voltages and is often found in audio processing, sensor amplification, active filtering, and other analog circuits. Specifically:

  • Signal Conditioning
  • Active Filtering
  • Audio Pre-amplification
  • Voltage Follower Circuits
  • Voltage Regulation Systems

LM393 Comparator: The LM393 is tailored for applications that require discrete outputs, like digital switching signals. It excels in designs where decisions based on comparing voltages are crucial:

  • Voltage Monitoring
  • Zero-Crossing Detectors
  • Simple A/D Converters
  • Relay Drivers
  • Oscillator Circuits

NE555 Timer: The NE555 timer IC's functions are mostly uniform across different subtypes like the NE555N and NE555P, and it is versatile enough to be used in a wide range of applications:

  • Timing Delays
  • Pulse Generation
  • Oscillators
  • PWM (Pulse Width Modulation) Control
  • Flip-Flop Elements

In terms of application specifics, it's important to check for subtle differences like temperature operating range or packaging that might make one subtype more suitable than another for a certain environment or physical design constraint. For any given project, referring to the datasheets provided by the component's manufacturer is essential as it will contain the most accurate, detailed information required to make an informed decision.

To sum up, the LM358, LM393, and NE555 each serve unique roles in electronic circuits, and while they may exhibit some overlap in their capabilities, their primary applications tend to be based on their respective strengths: the LM358 in analog signal processing, the LM393 in digital switching operations, and the NE555 in timing and waveform generation.

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