What is the difference between NE555P and NE555N?

Ever wondered what is the difference between NE555P and NE555N? The NE555P and NE555N are two common variations of the NE555 timer integrated circuit. While they may seem similar at first glance, there are a few key differences between the two. In this article, we will explore the variations between NE555P and NE555N and how they can impact their usage in electronic circuits.

1. Package Type

The first noticeable difference between NE555P and NE555N lies in their package types. NE555P comes in an 8-pin DIP (Dual Inline Package) format, whereas NE555N is available in an 8-pin PDIP (Plastic Dual Inline Package).

NE555P (8-Pin DIP)

The NE555P is commonly found in a plastic package with eight pins. These pins are arranged in a dual inline configuration, making it easy to fit into a breadboard or connect to a PCB (Printed Circuit Board).

NE555N (8-Pin PDIP)

On the other hand, the NE555N is also an 8-pin package but with a wider PDIP design. PDIP packages often have denser pin spacing than DIP packages, which can be a consideration when working with space-constrained projects.

2. Operating Temperature Range

Another significant difference between NE555P and NE555N is the operating temperature range that they can withstand.


NE555P typically has an operating temperature range of 0°C to 70°C. This means that it can safely operate within this temperature range without any adverse effects.


NE555N, on the other hand, has a wider operating temperature range, allowing it to operate in a broader range of environmental conditions. Its typical operating temperature range is -40°C to 85°C, making it more suitable for applications that may encounter extreme temperatures.

3. Internal Construction

Underneath their package types and operating temperature ranges, NE555P and NE555N also vary in their internal construction.


NE555P often contains bipolar technology, which is common in older versions of the timer. Bipolar technology utilizes both NPN and PNP transistors to form various components within the circuit.


NE555N, on the other hand, usually includes CMOS (Complementary Metal-Oxide-Semiconductor) technology, which is more advanced and efficient. CMOS technology allows for lower power consumption and greater noise immunity, resulting in improved performance in certain applications.

4. Power Consumption

Since NE555P and NE555N differ in their internal construction, they also have varying power consumption characteristics.


NE555P typically consumes more power than its counterpart, NE555N. The higher power consumption can be attributed to the use of bipolar technology and the associated components within the integrated circuit.


NE555N, with its CMOS technology, has lower power consumption. This makes it more energy-efficient, making it ideal for battery-operated devices or projects where power efficiency is a priority.

5. Voltage Supply Range

The voltage supply range is another aspect where NE555P and NE555N display dissimilarities.


NE555P has a voltage supply range of 4.5V to 16V. This means that it requires a power source within this range to operate correctly.


NE555N has a slightly wider voltage supply range compared to NE555P. It typically operates within the range of 3V to 18V. The extended voltage range allows for more flexibility in various applications.

6. Applications

Due to the differences mentioned above, NE555P and NE555N find different applications in electronic circuits. Let’s explore some common applications for each variant.

NE555P Applications

NE555P is often used in circuits where higher power consumption is not a significant concern. Some common applications include:

  • LED flashers
  • Tone generators
  • Motor controllers

NE555N Applications

NE555N, on the other hand, is suitable for applications that require a lower power supply and better noise immunity. Some typical applications for NE555N include:

  • Timers
  • Oscillators
  • Precision frequency generators


In summary, the NE555P and NE555N may share the same basic functionality as timer integrated circuits, but they have significant differences in package types, operating temperature ranges, internal construction, power consumption, voltage supply ranges, and applications. The choice between NE555P and NE555N depends on the specific requirements of the electronic circuit and the desired performance characteristics. By understanding these differences, electronics enthusiasts and engineers can make informed decisions when selecting the most suitable timer IC for their projects.

Eddie Mcfarren

Eddie Is no stranger to technical writing after spending years in Networking, IT Infrastructure management, and online content marketing. He is an avid researcher, Software and apps dev tester who spends hours solving problems behind the scenes. Get in touch with him via social media and you can email him via contact@gawkygeek.com

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