SN74LVC257APWT

Product Overview

• Category: Integrated Circuit (IC)
• Use: Multiplexer
• Characteristics: Low-voltage, high-speed, quadruple 2-line to 1-line data selector/multiplexer
• Package: TSSOP-16
• Essence: Logic IC for data selection and multiplexing
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• High-Level Input Voltage: 2V to VCC + 0.5V
• Low-Level Input Voltage: -0.5V to 0.8V
• High-Level Output Voltage: VCC - 0.4V
• Low-Level Output Voltage: 0.4V
• Maximum Operating Frequency: 100MHz
• Propagation Delay Time: 3.7ns (typical)
• Input Capacitance: 3pF (typical)
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The SN74LVC257APWT has a TSSOP-16 package with the following pin configuration:

__ __ A1 | 1 16 | VCC B1 | 2 15 | Y1 A2 | 3 14 | Y2 B2 | 4 13 | GND A3 | 5 12 | B3 B3 | 6 11 | A3 G1 | 7 10 | B2 GND | 8 9 | A2 ‾‾ ‾‾

Functional Features

• Quadruple 2-line to 1-line data selector/multiplexer
• Low-voltage operation for reduced power consumption
• High-speed operation for efficient data processing
• Schmitt-trigger inputs for improved noise immunity
• 3-state outputs for easy bus sharing

Advantages and Disadvantages

Advantages: - Low-voltage operation allows compatibility with various systems - High-speed operation enables fast data selection and multiplexing - Schmitt-trigger inputs provide robustness against noise - 3-state outputs facilitate bus sharing in complex circuits

Disadvantages: - Limited number of input/output lines (4:1 multiplexer) - Not suitable for applications requiring a higher number of inputs/outputs

Working Principles

The SN74LVC257APWT is a quadruple 2-line to 1-line data selector/multiplexer. It selects one of the four input lines based on the control inputs and routes it to the output. The device operates at low voltage, allowing it to be used in a wide range of systems. It offers high-speed operation, enabling efficient data selection and multiplexing. The Schmitt-trigger inputs ensure reliable performance even in the presence of noise. The 3-state outputs allow multiple devices to share a common bus.

Detailed Application Field Plans

The SN74LVC257APWT can be used in various applications, including but not limited to:

1. Data routing and selection in digital communication systems
2. Address decoding in memory systems
3. Input/output expansion in microcontroller-based systems
4. Multiplexing of sensor signals in industrial automation
5. Bus sharing in complex digital circuits

Detailed and Complete Alternative Models

1. CD74HC157E - Quad 2-line to 1-line data selector/multiplexer, DIP-16 package
2. MC74VHC157DTR2G - Quad 2-line to 1-line data selector/multiplexer, TSSOP-16 package
3. SN74LVC257ADGVR - Quad 2-line to 1-line data selector/multiplexer, TVSOP-16 package

These alternative models offer similar functionality and can be used as substitutes for the SN74LVC257APWT in various applications.

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