Guide to IC 7408 Logic Gate Chip: Specifications, Applications, and Pinout

CONTENTS:

• What is IC 7408?
• What is the IC name of the IC 7408?
• IC 7408 Quad 2-input AND Gate Manufacturer
• IC 7408 Features and Specifications
• AND Gate Pin Diagram and Truth Table of 7408 IC
• Characteristics and Ratings of 7408 IC
• How the 7408 IC Works
• Applications and Equivalents of 7408 IC

The 7408 IC, a crucial component in electronics, features four logic gates, each with two inputs. This 7408 chip belongs to the renowned 74xx series of Integrated Circuits (ICs), celebrated for their efficiency in handling logic operations. Engineers favor the 7408 IC for its reliable performance and user-friendly design. The pin diagram of logic gates illustrates its configuration, providing clarity on its setup. For comprehensive information, refer to the 7408 Datasheet. This IC is instrumental in building robust digital systems.

What is IC 7408?

The 7408 IC has four AND gates. Each gate has two inputs. Engineers use it for simple logic tasks. The gate gives a high output only if both inputs are high. This makes it important for making basic logic parts in digital systems.

What is the IC name of the IC 7408?

The IC 7408, identified as a "Quad 2-Input AND Gate" within the 74xx series of logic gates, is a crucial component in digital circuit design.  This designation signifies that the integrated circuit comprises four independent logic gates, each being a 2-input AND gate.  The IC number 7408 is significant as it identifies the chip as a quad 2-input AND gate within the 7400 series.  The '08' at the end of the number signifies its function, which is essential for identifying the chip and understanding its primary role.

In operation, each AND gate within the IC necessitates two input signals to determine the output, following the logic rule where the output is only high when both inputs are in a high logic state.  This functionality makes the 7408 IC versatile for a wide range of applications in digital electronics.

IC 7408 Quad 2-input AND Gate Manufacturer

The IC 7408 is a widely used integrated circuit that belongs to the 74xx series of logic gates. Specifically, the 7408 IC is a Quad 2-Input AND Gate. The following is the IC 7408 manufacturer information:

Texas Instruments (TI) - Texas Instruments is a leading global designer and manufacturer of semiconductor and computer technology products, offering a wide range of products including analog and digital signal processing integrated circuits, embedded processors and more.

Fairchild Semiconductor - Fairchild Semiconductor is one of the pioneers in the semiconductor industry, known for developing the first commercial transistor and contributing to the development of integrated circuit technology. The company was later acquired by ON Semiconductor, and its products and technologies continue to be developed and marketed under the ON Semiconductor brand.

ON Semiconductor - Following the acquisition of Fairchild Semiconductor, ON Semiconductor continues to develop and market a wide range of semiconductor products, including the 7408.

In addition, there are many other semiconductor companies that may produce the 7408 or its equivalent, including but not limited to NXP Semiconductors, STMicroelectronics, Diodes Incorporated, and others. These manufacturers typically follow standard specifications to ensure compatibility between IC 7408s from different sources.

When selecting the IC 7408, refer to its data manual for detailed technical specifications, pin configuration, and electrical characteristics. The data book usually provides details on the IC's absolute maximum rating, operating conditions, electrical characteristics, and switching characteristics. This information is essential for the design and implementation of efficient digital logic circuits.

IC 7408 Features and Specifications

IC 7408 Features

The 7408 IC is useful in digital electronics. It has four two-input AND gates. Each gate gives a high output if both inputs are high. This helps with basic logic tasks. Its small size fits easily into systems. The chip can handle simple to complex logic jobs.

IC 7408 specifications

Knowing the 7408 IC specs is important. It works with 4.75V to 5.25V power. Each gate uses about 10mW, saving energy. Input current is around 1µA, and output can be up to 8mA. It works well from 0°C to 70°C temperatures. The delay time is about 10ns for quick responses.

IC 7408 Datasheet

The 7408 Datasheet has detailed info on specs and use tips. Engineers and hobbyists can learn about its electrical traits and pin setup there.

Download 7408 Datasheet.

IC 7408 Package

The 7408 IC comes in different packages for various needs. The Dual In-line Package (DIP) is common and easy for breadboards or PCBs. Surface Mount Device (SMD) packages are good for small designs, offering flexibility in projects.

AND Gate Pin Diagram and Truth Table of 7408 IC

The 7408 IC, a staple in the digital logic designer's toolkit, is a quad 2-input AND gate integrated circuit.  This means that within a single 14-pin Dual In-line Package (DIP), you have four independent AND gates, each with its own distinct pin numbers for input and output.  The pin diagram for the 7408 IC is crucial for understanding how to interface with this chip and harness its full potential. The following is the 7408 Ic pinout diagram:

7408 Ic pinout diagram

AND Gate Pin Diagram

Each pin within 7408 IC has a specific function, which is crucial for the overall operation of the logic gates.  Here's a comprehensive pin configuration for the 7408 IC:

1. Pin 1: Input A of Gate 1

2. Pin 2: Input B of Gate 1

3. Pin 3: Output of Gate 1

4. Pin 4: Input A of Gate 2

5. Pin 5: Input B of Gate 2

6. Pin 6: Output of Gate 2

7. Pin 7: Ground (GND)

8. Pin 8: Output of Gate 3

9. Pin 9: Input A of Gate 3

10. Pin 10: Input B of Gate 3

11. Pin 11: Output of Gate 4

12. Pin 12: Input A of Gate 4

13. Pin 13: Input B of Gate 4

14. Pin 14: Positive Supply Voltage (Vcc)

The pin diagram of each AND gate within the 7408 IC is straightforward, consisting of two input pins (A and B) and one output pin (Y). Here's a simplified breakdown of the pin layout:

• Pins 1, 4, 9, 12: These are the first input pins (A) for Gates 1, 2, 3, and 4, respectively.
• Pins 2, 5, 10, 13: These are the second input pins (B) for the same gates.
• Pins 3, 6, 8, 11: These are the output pins (Y) for Gates 1, 2, 3, and 4, respectively.

• Ground (Pin 7): Serves as the common ground for all gates.

•  

  Vcc (Pin 14): Provides power to the IC, with a typical operating voltage range of 4.75V to 5.25V.

7408 IC AND Gate Truth Table 

To further clarify the operation of the AND gates within the 7408 IC, refer to the truth table below:

Low (0): Represents a logic level 0, typically 0V.

High (1): Represents a logic level 1, typically 5V.

The output is high (1) only when both inputs are high (1). This behavior is consistent across all four AND gates within the 7408 IC.

74xx Series Logic Gate ICs

The 74 series logic gate ICs are indispensable components in digital circuit design, including various types of logic gates such as AND gates, OR gates, NOT gates, and more. These ICs are renowned for their reliability and versatility, and are widely used in electronic design. Here are some common logic gate ICs from the 74 series and their features:

While the 7408 IC is designed for 2-input AND operations, other ICs in the 7400 series cater to different logic requirements.  For instance, the 7407 IC, which is a hex buffer/driver with 3-state outputs, can be configured as a 3-input OR gate.  This IC is also part of the 7400 series and is commonly used in digital circuit design for data selection and transmission.

For applications requiring a 4-input OR gate, the 7432 IC is a popular choice.  The 7432 IC contains four independent 2-input OR gates, which can be combined to create a 4-input OR gate configuration.  This IC is also part of the 7400 series and is widely used in digital electronics for address decoding and data bus expansion.

In cases where a 4-input AND gate is needed, the 7420 IC is an excellent option.  The 7420 IC features two 4-input NAND gates, which can be inverted to function as 4-input AND gates.  This IC is also part of the 7400 series and is commonly used in complex digital systems for building control circuits and complex logic expressions.

Characteristics and Ratings of 7408 IC

Absolute Maximum Ratings

Limits and tolerances

Knowing the top ratings of the 7408 IC keeps it safe. Going over these can break the IC. Here are the main limits:

• Supply Voltage: Up to 7V

• Input Voltage: Up to 5.5V

• Operating Temperature: -55°C to 125°C

• Storage Temperature: -65°C to 150°C

These numbers show safe use boundaries.

Operating Conditions

Best conditions for performance

For best work, the 7408 IC needs certain conditions. These help it run well and last long:

• Supply Voltage Range: 4.75V to 5.25V

• Ambient Temperature: 0°C to 70°C

Keeping these helps the IC work right in many uses.

Electrical Characteristics

Voltage, current, and power ratings

The electrical details of the 7408 IC show how it works. Here are key ratings:

• Input High Voltage (VIH): At least 2V

• Input Low Voltage (VIL): No more than 0.8V

• Output High Voltage (VOH): At least 2.4V at 4mA

• Output Low Voltage (VOL): No more than 0.4V at 8mA

• Power Dissipation: Uses up to 10mW per gate

These details show how well the IC handles voltage and power needs.

Switching Characteristics

Speed and Timing Details

The 7408 IC works very fast. It is good for many digital uses. The time it takes to change signals is important.

1. Propagation Delay: The 7408 IC has a delay of 10 nanoseconds. This means it can quickly handle logic tasks, which is key for fast circuits.

2. Rise and Fall Time: These times show how fast the output changes from low to high or back. They are just a few nanoseconds, helping quick actions in systems.

3. Frequency Response: The IC works with frequencies up to several megahertz. This lets it work well in busy electronic places.

Knowing these helps you make circuits that need exact timing and fast logic work. The speed and efficiency of the 7408 IC make it useful in today's electronics.

How the 7408 IC Works

What does the 7408 do?

The 7408 IC handles basic logic tasks. It has four AND gates with two inputs each. Engineers use it for simple math in computers. It works with different types like CMOS and TTL, making it useful in many gadgets.

When is the output high?

Both inputs must be high for a high output. Each gate in the 7408 IC needs this to work. If both signals are high, the gate gives a high result. This is key for building strong digital systems.

How to use the 7408 IC

Here's how to use the 7408 IC:

1. Connect Power: Attach power to Pin 14 and ground to Pin 7.

2. Add Signals: Send signals to pins 1, 2, 4, 5, 9, 10, 12, and 13.

3. Check Results: Look at outputs on pins 3, 6, 8, and 11. Outputs are high if both inputs are high.

4. Build Circuits: Use these outputs in other parts or circuits.

The 7408 IC makes doing logic easy. Its setup helps build fast and strong digital tools.

How Does Circuit 7408 Work?

The 7408 IC is key in digital electronics. It has four AND gates with two inputs each. Engineers use the 7408 chip for simple logic tasks. The 7408 IC name means it’s reliable and efficient.

To see how the 7408 IC works, try a circuit example. Connect power to Pin 14 and ground to Pin 7. Put signals into pins 1, 2, 4, 5, 9, 10, 12, and 13. Outputs show on pins 3, 6, 8, and 11. If both inputs are high, the output is high too. This helps the 7408 IC do logic tasks well.

For more details, check the 7408 Datasheet. It gives info on electrical features and pin setup.

Applications and Equivalents of 7408 IC

Advantages and Disadvantages

The 7408 IC has many good points. It works well for simple logic tasks. Engineers like its easy design. The chip fits into different digital systems easily. It uses little power, saving energy.

But, there are some downsides too. It might not work in very hot or cold places. Its speed may not be enough for fast systems. Think about these when picking the 7408 IC for your project.

Applications of IC 7408

The 7408 IC is used in lots of electronics. It's common in digital circuits for logic gates. The chip helps with math parts and data jobs. Engineers use it in timing and signal work.

It's great for school projects and hobbies too. The 7408 IC is a basic part to learn about chips. Check the datasheet for more ideas on how to use it.

Equivalent ICs

Think about these options if the 7408 IC isn't right for you. Each one has special features that might fit your needs better.

Explanation:

1. SN74LS08: This IC is part of the LS logic family and consists of four 2-input positive AND gates. It operates on TTL logic levels.

2. CD4081: The CD4081 is a member of the B series CMOS logic gates. It features four 2-input AND/OR gates with buffered outputs.

3. MC14008: A part of the TTL series, the MC14008 is a Quad 2-Input AND gate similar to the 7408 IC, designed to operate on TTL logic levels.

4. HCF4081: This IC belongs to the CMOS series and offers four 2-input AND gates. It operates on CMOS logic levels and is functionally equivalent to the 7408 IC.

These equivalent ICs provide similar functionality to the 7408 IC, offering 2-input AND gate operations in various logic families such as TTL and CMOS. Users can choose these alternatives based on compatibility, specifications, and availability for their specific circuit design needs.

Price

The 7408 IC is cheap for many projects. Prices change by seller and how many you buy. Buying in bulk can save money, making it good for big uses.

You can find it easily because the 7400 series is popular. Many online stores sell the 7408 IC. Local shops might have it too. Check different places to get the best deal.

For more details and buying tips, look at the IC 7408 Datasheet. It helps you understand specs and make smart choices when buying.

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