Encyclopedia Entry: 74AC14MTR

Product Overview

Category

The 74AC14MTR belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronic circuits for signal processing and amplification.

Characteristics

• The 74AC14MTR is a hex inverter Schmitt trigger.
• It operates at a voltage range of 2V to 6V.
• It has a high-speed operation with a propagation delay of 5.5 ns.
• This IC offers improved noise immunity and hysteresis characteristics.

Package

The 74AC14MTR is available in a surface mount package (TSSOP-14).

Essence

The essence of the 74AC14MTR lies in its ability to convert input signals into inverted output signals while providing noise immunity and hysteresis.

Packaging/Quantity

The 74AC14MTR is typically packaged in reels, containing 2500 units per reel.

Specifications

• Supply Voltage Range: 2V to 6V
• Input Voltage Range: 0V to Vcc
• Output Voltage Range: 0V to Vcc
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay: 5.5 ns (typical)
• Input Capacitance: 3 pF (typical)
• Output Current: ±24 mA

Detailed Pin Configuration

The 74AC14MTR consists of 14 pins, numbered as follows:

1. Pin 1: Input A1
2. Pin 2: Output Y1
3. Pin 3: Input A2
4. Pin 4: Output Y2
5. Pin 5: Input A3
6. Pin 6: Output Y3
7. Pin 7: Ground (GND)
8. Pin 8: Output Y4
9. Pin 9: Input A4
10. Pin 10: Output Y5
11. Pin 11: Input A5
12. Pin 12: Output Y6
13. Pin 13: Vcc (Supply Voltage)
14. Pin 14: Input A6

Functional Features

• Hex Inverter: The 74AC14MTR consists of six independent inverters, each capable of converting the input signal to its inverted form.
• Schmitt Trigger: It incorporates a Schmitt trigger on each input, providing hysteresis and improved noise immunity.

Advantages and Disadvantages

Advantages

• High-speed operation allows for efficient signal processing.
• Improved noise immunity ensures reliable performance in noisy environments.
• Hysteresis characteristics prevent false triggering due to input signal fluctuations.

Disadvantages

• Limited voltage range of 2V to 6V may restrict compatibility with certain systems.
• Surface mount package may require specialized equipment for soldering and replacement.

Working Principles

The 74AC14MTR operates based on the principles of digital logic. Each inverter within the IC receives an input signal and produces the inverted output signal. The Schmitt trigger feature ensures that the output transitions occur at different voltage levels for rising and falling input signals, providing noise immunity and hysteresis.

Detailed Application Field Plans

The 74AC14MTR finds applications in various fields, including:

1. Communication Systems: Used for signal conditioning and amplification in data transmission circuits.
2. Industrial Automation: Employed in control systems for signal processing and interfacing.
3. Automotive Electronics: Integrated into automotive control units for sensor signal conditioning.
4. Consumer Electronics: Utilized in audio/video equipment for signal conversion and amplification.
5. Computer Hardware: Incorporated in motherboards and peripheral devices for digital signal processing.

Detailed and Complete Alternative Models

1. 74HC14: Similar to the 74AC14MTR, but operates at a wider voltage range of 2V to 6V.
2. CD40106: A CMOS version of the hex inverter Schmitt trigger with a broader supply voltage range.
3. SN74LS14: A TTL logic family alternative with similar functionality but different electrical characteristics.

These alternative models offer similar functionality to the 74AC14MTR and can be used as replacements based on specific requirements.

In conclusion, the 74AC14MTR is a hex inverter Schmitt trigger IC that finds applications in various fields due to its high-speed operation, noise immunity, and hysteresis characteristics. Its compact package and availability in reels make it suitable for mass production.