SN74AS158NSR

Product Overview

Category: Integrated Circuit (IC)

Use: SN74AS158NSR is a quad 2-input multiplexer IC. It is commonly used in digital electronic circuits to select one of four input signals and route it to the output based on the control inputs.

Characteristics: - High-speed operation - Low power consumption - Wide operating voltage range - Schottky-clamped transistor logic - TTL compatible inputs - Available in surface mount package

Package: SN74AS158NSR is available in a small outline integrated circuit (SOIC) package, which provides ease of mounting and high-density packaging.

Essence: The essence of SN74AS158NSR lies in its ability to efficiently switch between multiple input signals and direct the selected signal to the output, making it an essential component in various digital systems.

Packaging/Quantity: SN74AS158NSR is typically sold in reels or tubes containing a quantity of 2500 units per package.

Specifications

• Supply Voltage Range: 4.5V 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: 9ns (max)
• Input Capacitance: 3pF (typ)
• Output Capacitance: 8pF (typ)
• Power Dissipation: 500mW (max)

Detailed Pin Configuration

SN74AS158NSR consists of 16 pins arranged as follows:

+---+--+---+ A1 ----|1 +--+ 16|---- VCC A2 ----|2 15|---- B S1 ----|3 14|---- A S0 ----|4 SN74AS158NSR 13|---- Y I0 ----|5 12|---- GND I1 ----|6 11|---- I3 I2 ----|7 10|---- I4 I3 ----|8 9|---- I5 +------------+

Functional Features

• Quad 2-input multiplexer with common select inputs (S0, S1)
• Four independent data inputs (I0-I3)
• Single output (Y) for selected input
• TTL compatible inputs allow easy integration with other digital circuits
• High-speed operation enables efficient signal switching

Advantages and Disadvantages

Advantages: - High-speed operation allows for quick signal routing - Low power consumption helps in reducing overall system power requirements - Wide operating voltage range ensures compatibility with various systems - Schottky-clamped transistor logic provides improved noise immunity - Compact SOIC package enables high-density circuit designs

Disadvantages: - Limited to a maximum of four input signals - Propagation delay time may affect timing-sensitive applications - Input and output capacitance can impact signal integrity in certain scenarios

Working Principles

SN74AS158NSR operates based on the control inputs (S0, S1) that determine which input signal is selected and routed to the output. The selected input is then transmitted through internal circuitry, ensuring minimal signal distortion and propagation delay.

Detailed Application Field Plans

SN74AS158NSR finds applications in various digital systems, including but not limited to: - Multiplexing multiple data sources into a single output - Data routing in microcontrollers and microprocessors - Address decoding in memory systems - Signal selection in communication systems - Logic circuit design and implementation

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to SN74AS158NSR are: - CD4051B: 8-channel analog multiplexer/demultiplexer IC - 74HC157: Quad 2-input multiplexer IC with non-inverting outputs - MC14051B: 8-channel analog multiplexer/demultiplexer IC with TTL-compatible inputs

These alternative models offer similar functionality but may have different specifications, pin configurations, or package options.

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