Encyclopedia Entry: 74AC11257PWRG4

Product Information Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic Multiplexer
• Characteristics: High-speed, low-power consumption, wide operating voltage range
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: A multiplexer that allows multiple input signals to be selected and routed to a single output line.
• Packaging/Quantity: Available in reels of 2500 units.

Specifications

• Logic Family: 74AC
• Number of Inputs: 16
• Number of Outputs: 1
• Supply Voltage Range: 2V to 6V
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay: 5.8 ns (typical)
• Output Current: ±24 mA
• Input Capacitance: 3 pF (typical)

Detailed Pin Configuration

The 74AC11257PWRG4 IC has a total of 24 pins arranged as follows:

+---+--+---+ Y1 |1 +--+ 24| VCC B1 |2 23| B2 A1 |3 22| A2 G1 |4 21| G2 Y2 |5 20| Y3 B3 |6 19| B4 A3 |7 18| A4 G3 |8 17| G4 Y4 |9 16| Y5 B5 |10 15| B6 A5 |11 14| A6 G5 |12 13| G6 +----------+

Functional Features

• The 74AC11257PWRG4 is a 16-input multiplexer with a single output line.
• It allows the selection of one input signal from the 16 available inputs to be routed to the output.
• The selection is controlled by the combination of input signals on the A, B, and G pins.
• The IC operates at high speed and consumes low power, making it suitable for various digital logic applications.

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data routing. - Low-power consumption helps in reducing overall system energy requirements. - Wide operating voltage range allows compatibility with different power supply levels. - Compact TSSOP package offers space-saving benefits.

Disadvantages: - Limited number of output lines may restrict certain complex multiplexing scenarios. - Propagation delay of 5.8 ns may introduce slight timing issues in critical applications.

Working Principles

The 74AC11257PWRG4 operates based on the principles of digital logic multiplexing. It uses a combination of control signals (A, B, and G) to select one of the 16 input signals and route it to the output line (Y). The internal circuitry of the IC ensures that only the selected input is passed through while all other inputs are isolated.

Detailed Application Field Plans

The 74AC11257PWRG4 finds applications in various fields, including:

1. Data communication systems
2. Multiplexed data transmission
3. Digital signal processing
4. Networking equipment
5. Industrial automation
6. Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the 74AC11257PWRG4 include:

1. 74HC11257: Similar functionality but operates at a lower voltage range.
2. CD4051: Analog multiplexer with similar pin configuration but different characteristics.
3. SN74LS151: 8-input multiplexer with different package options.

These alternative models provide flexibility in choosing the most suitable IC based on specific requirements and constraints.

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