SN74AS253AN

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Multiplexer/Demultiplexer
• Characteristics: High-speed, low-power consumption
• Package: DIP-16 (Dual In-line Package with 16 pins)
• Essence: Combines two 4-input multiplexers and two 1-of-4 decoders in a single chip
• Packaging/Quantity: Available in tubes or reels, quantity varies based on supplier

Specifications

• Supply Voltage: 4.5V to 5.5V
• Operating Temperature: -40°C to +85°C
• Propagation Delay: 9ns (typical)
• Input/Output Compatibility: TTL (Transistor-Transistor Logic)
• Logic Family: Advanced Schottky (AS)

Detailed Pin Configuration

The SN74AS253AN has 16 pins arranged as follows:

__ __ A1 |1 U 16| Vcc B1 |2 15| GND A2 |3 14| S0 B2 |4 13| S1 C1 |5 12| Y1 C2 |6 11| Y2 D1 |7 10| Y3 GND |8 9| Y4 --------

Functional Features

• Combines two 4-input multiplexers and two 1-of-4 decoders in a single chip
• Allows selection of one of the four inputs using the select inputs (S0 and S1)
• Provides four outputs (Y1, Y2, Y3, Y4) corresponding to the selected input
• High-speed operation enables efficient data processing
• Low-power consumption makes it suitable for battery-powered devices

Advantages and Disadvantages

Advantages: - Integration of multiple functions in a single chip saves board space - High-speed operation improves overall system performance - Low-power consumption extends battery life in portable devices

Disadvantages: - Limited number of inputs and outputs restricts its application in complex systems - Propagation delay may affect real-time applications with strict timing requirements

Working Principles

The SN74AS253AN is designed to perform the functions of both a multiplexer and a demultiplexer. It uses select inputs (S0 and S1) to choose one of the four inputs (A1, B1, C1, D1) and provides the corresponding output (Y1, Y2, Y3, Y4). The internal circuitry combines two 4-input multiplexers and two 1-of-4 decoders, enabling efficient data routing.

Detailed Application Field Plans

The SN74AS253AN can be used in various applications, including: 1. Data communication systems 2. Digital signal processing 3. Industrial automation 4. Instrumentation and measurement equipment 5. Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that provide similar functionality to the SN74AS253AN are: - CD4051B: 8-channel analog multiplexer/demultiplexer - MC14051B: 8-channel analog multiplexer/demultiplexer - 74HC151: 8-input multiplexer

These alternatives offer different pin configurations, supply voltages, and logic families, allowing designers to choose the most suitable option for their specific requirements.

Word count: 389 words