SN74LS157DRE4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Data Selector/Multiplexer
• Characteristics: TTL Logic, Quad 2-Line to 1-Line Data Selector/Multiplexer
• Package: SOIC-16
• Essence: High-speed digital logic IC used for data selection and multiplexing
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Logic Family: LS-TTL
• Number of Inputs: 2
• Number of Outputs: 1
• Supply Voltage Range: 4.75V to 5.25V
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 15ns (typical)
• Output Current: ±8mA
• Power Dissipation: 100mW (max)

Detailed Pin Configuration

The SN74LS157DRE4 has a total of 16 pins arranged as follows:

__ __ A1 -| 1 |--| 16 |- VCC B1 -| 2 |--| 15 |- Y A2 -| 3 |--| 14 |- B B2 -| 4 |--| 13 |- A G1 -| 5 |--| 12 |- GND G2 -| 6 |--| 11 |- C Y1 -| 7 |--| 10 |- D Y2 -| 8 |--| 9 |- C̅ -- --

Functional Features

• Quad 2-line to 1-line data selector/multiplexer
• Can select one of the four inputs based on the control inputs
• TTL compatible inputs and outputs
• Low power consumption
• High-speed operation

Advantages and Disadvantages

Advantages: - Versatile data selection and multiplexing capabilities - Wide operating temperature range - Low power consumption - High-speed operation

Disadvantages: - Limited number of inputs and outputs - Requires external control signals for proper operation

Working Principles

The SN74LS157DRE4 is a quad 2-line to 1-line data selector/multiplexer. It allows the user to select one of the four input lines (A, B, C, D) based on the control inputs (G1, G2). The selected input is then routed to the output pin (Y). The device operates on TTL logic levels and provides high-speed operation with low power consumption.

Detailed Application Field Plans

The SN74LS157DRE4 can be used in various applications that require data selection and multiplexing. Some potential application fields include:

1. Digital communication systems
2. Data acquisition systems
3. Industrial automation
4. Instrumentation systems
5. Control systems

Detailed and Complete Alternative Models

1. SN74LS157N: DIP-16 package, same functionality as SN74LS157DRE4
2. CD74HC157E: SOIC-16 package, CMOS logic, similar functionality to SN74LS157DRE4
3. MC74HC157AN: DIP-16 package, CMOS logic, similar functionality to SN74LS157DRE4
4. 74HCT157: SOIC-16 package, CMOS logic, similar functionality to SN74LS157DRE4

These alternative models provide similar functionality to the SN74LS157DRE4 and can be used as replacements depending on specific requirements.

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