Electronics components datasheets that you should know

Learn about many Electronics components datasheets with their pinout details, uses, the example circuits, and how to use them.

Imagine you are creating an electronic project like a tone control preamplifier circuit. But doing that circuit not working as expected.  There may be many reasons.

Electronics components datasheets

Understanding the operation of electronic devices is essential. Using NE5532 instead of LM1458 op-amp will have better sound quality. Because the noise is lower.

Recommended: Learn Basic Electronics

Top 20 Components that we should learn!

NE555 timer

How does 555 timer circuit works | Datasheet | Pinout

Have you ever used the NE555 timers? I have used it since 36 years ago. Now, still use it. It’s not out of date.

We don’t waste time with questions. Why do we like using it?

Let me explain to you how to use it in a simple way. Also, I will learn it with you. The NE555 is one of the handiest IC’s to be invented. Read more>>

741 op-amp IC

741 op-amp DIP 8 pins

We often see the LM741 circuit in many projects. Sure, You can do them. But… Will it is more fun if you understand how it works?

Do not worry at all. I always try to work it easy for you.

… Ha..Ha. I know a little. But like to share.

LM741 or uA741 or called 741 is a type of op-amps. They are a high-performance operational amplifier on a single chip.

Read more>>

LM317 voltage regulator IC

pinout of LM317T on TO-220

In the event, we need to build a variable DC power supply that output of 1A and can adjust up to about 30V.
Most people will use LM317 because of high-efficiency, easy to apply, and cheaper.

It has an adjustable 3-terminal positive voltage regulator designed to supply more than 1.5 A of load current with an output voltage adjustable over a 1.2V to 37V range. Read more>>

LM350 adjustable voltage Regulator

LM350 pinout
LM350 pinout

The LM350  is 3A DC adjustable power supply chip, high-performance. It can apply voltage output 1.25V to 35V. so have a few components. If you add two diode series with the output to reduce voltage start with 0-volts.

This circuit looks like in My first Variable DC Power Supply, But this high current higher than 3-Amp. Therefore they cause you can supply more any load circuit. Read more>>

IC 4017/CD4017 Datasheet | Pinout

IC 4017 Datasheet

When we build the 10 LEDs running light for a hobby. Often use CD4017 CMOS-IC.

Why we use it?

The CD4017 is one of the most versatile counters.

Imagine It can count up to 10 and has 10 separate outputs. And will show a single output pin for each count from 0 to 9.

Because this chip contains the counter and the decoder section, too. It is so good. Read more>>

LM386 Audio Power Amplifier

LM386 in DIP-8 packet

You finished an audio circuit. But the sound is too weak.

Many people use LM386 to increase sound up to a speaker. Why should you do it too? Some said to try it now.

But…it is better. If you read LM386 Datasheet before.

LM386 is a low voltage audio amplifier. And, good at working with a battery. Its shape is similar for IC-741, and DIP-8. So, small and easy. Even small but great sound.

TDA2822 stereo amplifier circuit

TDA2822 pinout connection

This is TDA2822 small stereo power amplifier.

People like TDA2822. Me too.


  • Dual Amplifiers in one DIP-8 similar for LM368.
  • Give power watts at 1W + 1W at 4 ohms speakers.
  • It is enough. We are happy Listening in our corner.
  • Start voltage supply of 1.8V to 15V. The wide a lot.
  • Save energy with only 6mA, Min.
    Read more>>

LM1875 – HIFi audio amplifier circuit

Imagine Your house is mini or you are a beginner or getting a hurry. You love music and want a hobby with Electronics. How do you make feel better? You should build a tidy amplifier. Use LM1875 circuits.


It gives a 20W audio amplifier on Class AB type. Voltage Gain is 90dB. Low Harmonic Distortion Noise is 0.015%, 1KHz, 8 ohms. And Wide supply range 16V-60V at 4A.

Not only that, but It also has Protection for short circuits to the ground and thermal shutdown.
Read more>>

LM324 circuits | How to | Datasheet

LM324 pinout

Have you ever used an LM324 circuit? We may see them in many circuit diagrams. Because they are operational amplifiers (OP-AMP) that require a battery or single-polarity supply(positive and negative only). In over a very wide voltage range.

In single DIP package have 14 pins and four op-amps inside.

You can use only one of the op-amps or all four.
Read more>>

LM339 Datasheet – Quad Comparator – How to use

LM339 datasheet

When we want to use a voltage comparator circuit.  They are accurate cheap and easy to use.

Usually, we choose to use LM741, it is op-amp is very versatile in use. It is not suitable for this particular work. So low efficiency.

We should use a specific IC to work better. I choose the LM339 Quad Comparator IC. They are the same price and easier to use.
Read more>>

NE5532 Dual Low Noise op-amp

NE5532 dual low noise op-amp photo

Do you want to make a preamplifier with tone control or other circuits?  It has many choices for you.


If you are looking for small and good sound. The preamplifier using NE5532 may be a thing you are looking for.

Why?  It makes a great sound, low noise, and easy to use.  
Read more>>

LM383 Amplifier circuit

Small audio amplifier IC 7w using LM383

It is LM383 Amplifier circuit as high power amplifiers suited for an automotive application or many car systems. (14.4V supply) and use the high current capability of 3.5A.

It is current limited and thermally protected.
Read more>>

NE566 Function generator | VCO

We have many ways to make the function generator. Using NE566/LM566 is a good choice. Because it easy to use. It looks like a NE555 timer.

And we often use the NE566 as Voltage controlled oscillator or VCO circuit. It is a type of oscillator.

We can control the frequency of the output with the amplitude of an input voltage signal.
Read more>>

CD4069  Hex inverter/Buffers

CD4069 Datasheet,Hex inverter Buffers & sample circuits

You probably know that the inverter logic gate is very important in digital circuits. We have many ways to do it. But often I use CMOS digital IC. Because it is easy and cheap. CD4069 is one IC that I like to use.

Sure, it will work well. If we know the basic details, pinouts, features. Especially examples of circuit diagrams. To be a guideline for creating more diverse circuits.
Read more>>

IC 4049 Hex inverter Datasheet

IC 4049 Hex inverter Datasheet - Square wave oscillator

The IC 4049 is a CMOS logic chip. It includes the six independent inverters inside.

We often use them for interfacing. And, make simple clock pulse generators and oscillators.

When connect two in series to make a non-inverting buffer.

The input-signal high level (VIH) can exceed the VCC supply voltage when these devices are used for logic-level conversions.

Read more>>

CD4013 |Dual D-type Flip-flops datasheets

CD4013 Datasheet |Dual D-type Flip-flops | Example Circuits

When seeing CD4013 in general electronic circuits. We know that it is a digital CMOS chip. But how to use it? This article has answers. Understanding it easily use as a basic system.

The CD4013 or IC-4013 is a CMOS logic chip with two D-Type (DATA) Flip-flops. A clock pulse flow to C (clock pin), will store the data at the D input. Connect clock and both Q output to make a toggle flip-flop for counting. Read more>>

74HC4066 Quad analog switch CMOS

74HC4066 Pinout connection

What switches is in In digital? 74HC4066(CD4066) is a good answer. Most people use them.


The 4066 is a high-speed CMOS Quad Logic Chip. Which containing with silicon gate Cmos technology. To use as analog switches.

They can turn ON or OFF with external logic signals.

See inside 74HC4066 or 4066. It consists of 4 independent high-speed switches, ABCD block. And, can control either digital or analog signals. While still low power dissipation.  

Read more>>

ULN2003  DC motor driver circuit

ULN2003 Datasheet _ pinout _ DC motor driver circuit

Imagine that you want to control the stepper motor with any microcontroller, Arduino, PIC, MCS51, and others. But we can’t drive it directly. We need to have a good helper. I recommend ULN2003.

Why should we use it?

It is an IC driver relay, motor widely used for driving many relays. It is suitable for use in automated control tasks that have a total of 7 operation channels, working independently with each other. Or we called 7 Channel Transistor Arrays.

Read more>>

CD4027 datasheet of Dual J-K Flip-Flop

CD4027 pinout and symbol circuit

When we want to use flip-flops with CMOS. Often we meet CD4027. It is dual J-K flip-flops that are monolithic complementary MOS integrated circuits.

We have seen many circuits that use them. Of course, making a great circuit we should understand the detail of any parts( basic enough).

Slow down!

If you are a beginner. You should read how flip-flop works and Read more>>

LM2575  Switcher 1A Step Down Voltage Regulator


The LM2575 circuit is a simple step down dc regulated switching IC that can use to output current of 1A and voltage of 3.3V, 5V, 12V, 15V, and also an adjustable output.

We love LM1575/LM2575/LM2575 National Semiconductor it why it is amazing since as step down voltage( Buck dc converter) switching regulator like 78xx series IC.

We see a design to take advantage of advanced circuit techniques, as follows.
Read more>>

LM2596 voltage regulator – LM2673 datasheet

LM2596 Pinout

Do you want a 3A voltage regulator circuit? Before we often you LM350. But now we may use others. Some use the LM2596 circuit.

It is suitable for easy and convenient use as a step-down switching regulator. Some called a buck converter circuit.

Here are why I like them.

Drives 3.0 A load with excellent line and load regulation.

Runs on a switching frequency of 150 kHz. So, we can use a smaller sized filter than lower frequency switching regulators.

Requires a few external components. So, a smaller circuit.
Imagine You are using LM350 is smaller and not hot. I like the LM2596.  Read more>>

Datasheets360.com – Electronics Components datasheets

CD4046 Phase-locked loop

IC 4046 datasheet (phase-locked loop)

The IC 4046 is a Phase-locked loop IC of CMOS digital (combined analog and digital chip).

A Phase-locked loop(PLL) has a voltage-controlled oscillator(VCO).

The VCO signal and an input signal are sent to a phase comparator which generates an error voltage part to any difference in frequency between two signals.

The error voltage adjusts the VCO frequency to match that of the input signal.

Thus the PLL can track an input signal.

Or only the VCO function can be used. Read more>>

TDA1562 – High Car Audio Amplifier 70W

The TDA1562 datasheet is a high output power 70W /4 ohms Bridge-Tied-Load(BTL) class H and AB high-efficiency power amplifiers in plastic power package (TO-220)

The device can be used for car audio systems (e.g. car radios and boosters) as well as mains fed applications (e.g. midi/mini audio combinations and TV sound).
Read more>>

Others ICs

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