74LV251DB,118

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Multiplexer
• Characteristics: Low-voltage, Quad 2-input multiplexer
• Package: SSOP (Shrink Small Outline Package)
• Essence: Digital logic component for data selection and routing
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Logic Family: LV (Low-Voltage)
• Number of Inputs: 8
• Number of Outputs: 4
• Input Signal Type: Single-ended
• Output Signal Type: Single-ended
• Operating Temperature Range: -40°C to +125°C
• Propagation Delay Time: 6 ns (typical)

Pin Configuration

The 74LV251DB,118 IC has a total of 16 pins. The pin configuration is as follows:

+---+--+---+ A0 |1 +--+ 16| VCC A1 |2 | Y0 A2 |3 | Y1 A3 |4 | Y2 GND |5 | Y3 S0 |6 | OE# S1 |7 | I0 I1 |8 | I1 I2 |9 | I2 I3 |10 | I3 G1 |11 | G2 G3 |12 | GND Y3 |13 | S0 Y2 |14 | S1 Y1 |15 | A0 Y0 |16 | A1 +---+--+---+

Functional Features

• Quad 2-input multiplexer with common select inputs (S0, S1)
• Four independent data inputs (I0, I1, I2, I3)
• Output enable input (OE#) for tri-state output control
• Low-voltage operation suitable for battery-powered devices
• Fast propagation delay time for high-speed applications

Advantages and Disadvantages

Advantages: - Compact SSOP package for space-constrained designs - Wide supply voltage range allows compatibility with various systems - Low power consumption for energy-efficient applications - High-speed operation enables quick data routing

Disadvantages: - Limited number of inputs and outputs may restrict complex circuit designs - Propagation delay time may introduce timing issues in certain applications - Lack of built-in protection features against electrical faults

Working Principles

The 74LV251DB,118 is a logic multiplexer that selects one of the four input signals based on the select inputs (S0, S1). The selected input is then routed to the corresponding output (Y0, Y1, Y2, Y3). The output enable input (OE#) controls the tri-state output, allowing the outputs to be effectively disconnected from the circuit when not needed.

Detailed Application Field Plans

The 74LV251DB,118 can be used in various applications, including but not limited to:

1. Data routing and selection in microcontrollers and digital processors.
2. Signal switching in communication systems and networking equipment.
3. Address decoding in memory modules and storage devices.
4. Input/output expansion in embedded systems and industrial automation.
5. Multiplexing control in audio/video equipment and multimedia devices.

Alternative Models

Other alternative models that provide similar functionality to the 74LV251DB,118 include:

1. 74HC251: High-speed CMOS logic multiplexer with similar pin configuration.
2. CD4051: Analog multiplexer/demultiplexer IC with 8 channels.
3. SN74LS157: Quad 2-line to 1-line data selector/multiplexer.

These alternative models can be considered based on specific requirements and compatibility with the target system.

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