Encyclopedia Entry: 74AC158MTR

Product Overview

Category

The 74AC158MTR belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronics for data multiplexing applications.

Characteristics

• The 74AC158MTR is a quad 2-input multiplexer with common select inputs.
• It operates on a supply voltage range of 2V to 6V.
• This IC has a low power consumption and high noise immunity.
• It offers fast switching speeds and low propagation delay.

Package

The 74AC158MTR is available in a small outline transistor (SOT) package.

Essence

The essence of the 74AC158MTR lies in its ability to select one of four input signals and route it to a single output line based on the select inputs.

Packaging/Quantity

This IC is typically sold in reels or tubes, containing a quantity of 2500 units per package.

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 Time: 5ns (max)
• Input Capacitance: 3pF (typ)
• Output Capacitance: 6pF (typ)

Detailed Pin Configuration

The 74AC158MTR has a total of 16 pins, which are assigned specific functions as follows:

1. A0: Input A0
2. B0: Input B0
3. S: Select Input
4. Y: Output Y
5. GND: Ground
6. Y: Output Y
7. S: Select Input
8. B1: Input B1
9. A1: Input A1
10. Y: Output Y
11. S: Select Input
12. B2: Input B2
13. A2: Input A2
14. Y: Output Y
15. Vcc: Supply Voltage
16. A3: Input A3

Functional Features

• The 74AC158MTR allows for the selection of one out of four input signals using the select inputs.
• It provides a single output line that carries the selected input signal.
• This IC has a high-speed operation, making it suitable for time-critical applications.
• It offers low power consumption and high noise immunity, ensuring reliable performance.

Advantages and Disadvantages

Advantages

• Fast switching speeds and low propagation delay.
• Wide supply voltage range allows for versatile use.
• High noise immunity ensures reliable operation in noisy environments.
• Low power consumption contributes to energy efficiency.

Disadvantages

• Limited number of input channels (four).
• Not suitable for applications requiring more complex multiplexing configurations.

Working Principles

The 74AC158MTR operates based on the principle of digital multiplexing. It uses the select inputs to determine which of the four input signals is routed to the output line. The selected input is then available at the output pin, while the non-selected inputs are disconnected.

Detailed Application Field Plans

The 74AC158MTR finds application in various fields, including:

1. Data communication systems
2. Digital signal processing
3. Industrial automation
4. Consumer electronics
5. Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that can be used as substitutes for the 74AC158MTR include:

1. 74HC158: Similar functionality, but operates at a higher voltage range.
2. CD4051: Offers more input channels and additional features.
3. SN74LS157: Provides similar functionality with different characteristics.

In conclusion, the 74AC158MTR is a versatile quad 2-input multiplexer IC that finds application in various digital electronics systems. Its fast switching speeds, low power consumption, and high noise immunity make it a reliable choice for data multiplexing tasks. However, its limited number of input channels may restrict its use in more complex applications.