SN74AHC157PWG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Data Selector/Multiplexer
• Characteristics:
  • High-speed CMOS logic
  • Quad 2-input multiplexer
  • Wide operating voltage range: 2V to 5.5V
  • Low power consumption
• Package: TSSOP-16
• Essence: This IC is designed to select one of four data inputs and route it to a single output, based on the control inputs.
• Packaging/Quantity: Available in reels of 2500 pieces.

Specifications

• Logic Family: AHC
• Number of Inputs: 4
• Number of Outputs: 1
• 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 Time: 6 ns (typical)
• Maximum Quiescent Current: 10 μA

Detailed Pin Configuration

The SN74AHC157PWG4 has a total of 16 pins arranged as follows:

+---+--+---+ B1 --|1 +--+ 16|-- VCC A1 --|2 15|-- Y B2 --|3 14|-- A A2 --|4 13|-- B E --|5 12|-- C Y --|6 11|-- D GND --|7 10|-- B3 C --|8 9|-- A3 +----------+

Functional Features

• The SN74AHC157PWG4 is a quad 2-input multiplexer that can select one of four data inputs and route it to a single output.
• The selection is controlled by the E (Enable) input, which determines whether the multiplexer is active or in a high-impedance state.
• The A, B, and C inputs determine the binary code for selecting the desired data input.

Advantages and Disadvantages

Advantages: - High-speed operation - Wide operating voltage range - Low power consumption - Compact TSSOP package

Disadvantages: - Limited number of inputs and outputs - Not suitable for applications requiring more complex multiplexing functionality

Working Principles

The SN74AHC157PWG4 operates based on the principles of digital logic. When the E input is low, the multiplexer is enabled, and the selected data input is routed to the output based on the binary code provided by the A, B, and C inputs. When the E input is high, the multiplexer is disabled, and the output is in a high-impedance state.

Detailed Application Field Plans

The SN74AHC157PWG4 can be used in various applications, including: - Data routing and selection in microcontrollers and digital systems - Address decoding in memory systems - Signal switching in communication systems - Input selection in audio/video equipment

Detailed and Complete Alternative Models

Some alternative models that provide similar functionality to the SN74AHC157PWG4 include: - CD74HC157E - MC74HC157N - 74HCT157N - SN54HC157J

These models may have slight differences in specifications, pin configuration, or package type, but they serve the same purpose of data selection/multiplexing.

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