CD74ACT157E

Overview

• Category: Integrated Circuit (IC)
• Use: Data Selector/Multiplexer
• Characteristics: High-speed, low-power, 2-input multiplexer
• Package: 16-pin DIP (Dual In-line Package)
• Essence: CD74ACT157E is a versatile IC used for data selection and multiplexing purposes. It offers high-speed operation while consuming low power.
• Packaging/Quantity: Available in tubes or reels, with varying quantities depending on the supplier.

Specifications

• Logic Family: ACT
• Number of Inputs: 2
• Number of Outputs: 1
• Supply Voltage: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay: 6ns (typical)
• Output Current: ±24mA
• Input Capacitance: 3pF (typical)

Pin Configuration

The CD74ACT157E has a 16-pin DIP package with the following pin configuration:

+---+--+---+ A1 |1 16| VCC B1 |2 15| Y A0 |3 14| B B0 |4 13| C G1 |5 12| GND G2 |6 11| D G3 |7 10| E Y1 |8 9| F +--------+

Functional Features

• The CD74ACT157E is a 2-input multiplexer that selects one of the two input signals based on the control inputs.
• It operates at high speed, making it suitable for applications requiring fast data selection.
• The IC has a low power consumption, making it energy-efficient.
• It provides a single output that represents the selected input.

Advantages and Disadvantages

Advantages

• High-speed operation allows for quick data selection.
• Low power consumption results in energy efficiency.
• Versatile IC suitable for various applications.
• Compact 16-pin DIP package makes it easy to integrate into circuit designs.

Disadvantages

• Limited number of inputs and outputs.
• Requires external control signals for proper functioning.

Working Principles

The CD74ACT157E works based on the principle of multiplexing. It has two data inputs (A and B) and one output (Y). The control inputs (C and D) determine which input is selected and routed to the output. When C and D are set to specific logic levels, the corresponding input is transmitted to the output.

Detailed Application Field Plans

The CD74ACT157E can be used in various applications, including:

1. Data routing in digital systems
2. Address decoding in memory systems
3. Signal selection in communication systems
4. Input selection in microcontroller-based systems
5. Multiplexing in data acquisition systems

Alternative Models

There are several alternative models available that serve similar functions to the CD74ACT157E. Some popular alternatives include:

1. SN74LS157
2. MC74HC157
3. CD4052
4. 74HC151

These alternative models offer similar features and can be used as replacements depending on specific requirements.

In conclusion, the CD74ACT157E is a versatile IC used for data selection and multiplexing purposes. Its high-speed operation, low power consumption, and compact package make it suitable for various applications. However, it has a limited number of inputs and outputs and requires external control signals for proper functioning. There are alternative models available that serve similar functions.