Encyclopedia Entry: 74ACT11257NSR

Product Overview

Category

The 74ACT11257NSR belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

• High-speed operation: The 74ACT11257NSR is designed to operate at high speeds, making it suitable for time-critical applications.
• Low power consumption: This IC is designed to minimize power consumption, ensuring efficient operation.
• Wide operating voltage range: It can operate within a wide voltage range, providing flexibility in various electronic systems.
• Compatibility: The 74ACT11257NSR is compatible with TTL (Transistor-Transistor Logic) and CMOS (Complementary Metal-Oxide-Semiconductor) logic levels.

Package and Quantity

The 74ACT11257NSR is available in a small-outline package (SOIC) with 16 pins. It is typically sold in reels or tubes containing multiple units.

Essence

The essence of the 74ACT11257NSR lies in its ability to efficiently multiplex and demultiplex data signals in digital electronic systems.

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
• Maximum Propagation Delay: 6ns
• Maximum Operating Frequency: 125MHz

Detailed Pin Configuration

The 74ACT11257NSR has 16 pins arranged as follows:

┌───┐ A1 -|1 16|- VCC B1 -|2 15|- Y1 A2 -|3 14|- B2 B2 -|4 13|- Y2 A3 -|5 12|- B3 B3 -|6 11|- Y3 G1 -|7 10|- GND OE1 -|8 9|- OE2 └───┘

Functional Features

The 74ACT11257NSR offers the following functional features:

• Data Multiplexing: It can combine multiple input signals (A1-A3) into a single output signal (Y1-Y3).
• Data Demultiplexing: It can distribute a single input signal (B1-B3) to multiple output signals (Y1-Y3).
• Output Enable Control: The OE1 and OE2 pins allow for enabling or disabling the output signals.

Advantages and Disadvantages

Advantages

• High-speed operation enables efficient data processing.
• Low power consumption ensures energy efficiency.
• Wide operating voltage range provides flexibility in various electronic systems.
• Compatibility with TTL and CMOS logic levels allows for easy integration.

Disadvantages

• Limited number of input and output channels compared to some other ICs.
• May require additional external components for certain applications.

Working Principles

The 74ACT11257NSR operates based on multiplexing and demultiplexing principles. When the appropriate control signals are applied to the OE1 and OE2 pins, the IC either combines multiple input signals into a single output or distributes a single input signal to multiple outputs. This functionality is achieved through internal circuitry that routes the signals accordingly.

Detailed Application Field Plans

The 74ACT11257NSR finds applications in various digital electronic systems, including but not limited to: - Data communication systems - Multiplexed display systems - Address decoding circuits - Data routing and switching systems

Detailed Alternative Models

Here are some alternative models that offer similar functionality to the 74ACT11257NSR: - 74HC11257: This IC operates at a lower voltage range (2V to 6V) but provides similar multiplexing and demultiplexing capabilities. - CD4051: Although not an exact alternative, this IC offers analog multiplexing and demultiplexing functions.

Please note that the alternatives mentioned above may have different pin configurations and specifications. It is essential to refer to their respective datasheets for detailed information.

Word count: 550 words