Encyclopedia Entry: 74ACT158MTC

Product Overview

Category

The 74ACT158MTC belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

• The 74ACT158MTC is a quad 2-input multiplexer with 3-state outputs.
• It operates on a supply voltage range of 4.5V to 5.5V.
• This IC offers high-speed performance and low power consumption.
• It is designed to be compatible with TTL (Transistor-Transistor Logic) inputs and outputs.

Package

The 74ACT158MTC is available in a small outline surface mount package (TSSOP-16).

Essence

The essence of the 74ACT158MTC lies in its ability to select one of four input signals and route it to a single output line based on control inputs.

Packaging/Quantity

This IC is typically sold in reels or tubes, with each reel containing a quantity of 2500 units.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to Vcc
• Output Voltage Range: 0V to Vcc
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 6 ns (max)
• Output Current: ±24 mA

Detailed Pin Configuration

The 74ACT158MTC has a total of 16 pins, which are assigned specific functions as follows:

1. A0: Input A0
2. B0: Input B0
3. A1: Input A1
4. B1: Input B1
5. Y: Output Y
6. G: Enable Input
7. Vcc: Positive Supply Voltage
8. B3: Input B3
9. A3: Input A3
10. A2: Input A2
11. B2: Input B2
12. Y3: Output Y3
13. GND: Ground
14. Y2: Output Y2
15. Y1: Output Y1
16. Y0: Output Y0

Functional Features

The 74ACT158MTC offers the following functional features:

• Quad 2-input multiplexer with 3-state outputs.
• Selects one of four input signals based on control inputs.
• Compatible with TTL inputs and outputs.
• High-speed operation and low power consumption.

Advantages and Disadvantages

Advantages

• High-speed performance allows for efficient data multiplexing.
• Low power consumption helps in reducing overall system energy requirements.
• Compatibility with TTL inputs and outputs ensures easy integration into existing digital systems.

Disadvantages

• Limited to a maximum supply voltage range of 5.5V, which may restrict its use in certain applications requiring higher voltages.
• The small outline surface mount package (TSSOP-16) may pose challenges during manual soldering or rework.

Working Principles

The 74ACT158MTC operates by utilizing control inputs to select one of the four input signals (A0, A1, A2, A3) and route it to the output line (Y0, Y1, Y2, Y3). The enable input (G) controls the output state, allowing the IC to be put into a high-impedance state when necessary.

Detailed Application Field Plans

The 74ACT158MTC finds application in various digital electronic systems, including but not limited to:

1. Data communication systems
2. Multiplexing/demultiplexing circuits
3. Data routing and selection modules
4. Microcontroller-based systems
5. Industrial automation equipment

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74ACT158MTC include:

1. 74HC158: A quad 2-input multiplexer with non-inverting outputs.
2. CD4052: A dual 4-channel analog multiplexer/demultiplexer.
3. SN74LS157: A quad 2-line to 1-line data selector/multiplexer.

These alternatives can be considered based on specific application requirements and compatibility with existing systems.

In conclusion, the 74ACT158MTC is a versatile integrated circuit used for data multiplexing applications. Its high-speed performance, low power consumption, and compatibility with TTL inputs and outputs make it a popular choice in various digital electronic systems.