SN74AHC157DBR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Data Selector/Multiplexer
• Characteristics: High-speed, low-power, 4-to-1 multiplexer
• Package: SSOP-16
• Essence: Logic IC for data selection and multiplexing
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay: 6 ns (typical)
• Maximum Quiescent Current: 10 µA
• Maximum Output Current: ±8 mA

Detailed Pin Configuration

The SN74AHC157DBR has a total of 16 pins arranged as follows:

__ __ A1 |1 \__/ 16| VCC B1 |2 15| B2 A2 |3 14| Y B3 |4 13| GND A3 |5 12| C B4 |6 11| A GND |7 10| B Y1 |8 9| Y0 ‾‾ ‾‾

Functional Features

• 4-to-1 Data Selector/Multiplexer
• Low power consumption
• High-speed operation
• Schmitt-trigger inputs for noise immunity
• Wide supply voltage range
• Compatible with TTL and CMOS logic levels

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data selection and multiplexing. - Low power consumption makes it suitable for battery-powered devices. - Wide supply voltage range provides flexibility in various applications. - Schmitt-trigger inputs ensure reliable operation in noisy environments.

Disadvantages: - Limited to 4-to-1 multiplexing, may not be suitable for larger-scale applications. - SSOP-16 package may require careful handling during assembly.

Working Principles

The SN74AHC157DBR is a 4-to-1 multiplexer that selects one of the four input data lines (A1-A3, B1-B4) based on the control inputs (C, A, B). The selected data is then routed to the output pin (Y). The device operates using CMOS technology, providing high-speed performance with low power consumption.

Detailed Application Field Plans

The SN74AHC157DBR can be used in various applications, including:

1. Data routing and selection in microcontrollers and digital systems.
2. Address decoding in memory systems.
3. Input signal selection in communication systems.
4. Multiplexing control signals in industrial automation.
5. Logic level conversion in mixed-signal circuits.

Detailed and Complete Alternative Models

1. CD74HC157E: DIP-16 package, similar functionality.
2. MC74HC157N: DIP-16 package, compatible specifications.
3. 74AHC157PW: TSSOP-16 package, same functionality.

These alternative models provide similar features and can be used as substitutes for the SN74AHC157DBR in various applications.

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