Encyclopedia Entry: 74AC11257PW

Product Information Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Shifter
• Characteristics: High-speed, low-power consumption
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Transfers digital signals between different voltage levels
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Logic Family: 74AC
• Number of Channels: 4
• Input Voltage Range: 2V to 5.5V
• Output Voltage Range: 2V to 5.5V
• Propagation Delay: 3.8 ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 74AC11257PW has a total of 16 pins, which are assigned as follows:

1. A1 (Input A1)
2. B1 (Input B1)
3. Y1 (Output Y1)
4. GND (Ground)
5. Y2 (Output Y2)
6. B2 (Input B2)
7. A2 (Input A2)
8. VCC (Power Supply)
9. A3 (Input A3)
10. B3 (Input B3)
11. Y3 (Output Y3)
12. GND (Ground)
13. Y4 (Output Y4)
14. B4 (Input B4)
15. A4 (Input A4)
16. VCC (Power Supply)

Functional Features

• Transfers digital signals between different voltage levels
• Supports bidirectional data flow
• Provides non-inverting level shifting
• High-speed operation with minimal propagation delay
• Low power consumption for energy-efficient applications

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data transfer - Wide input and output voltage range for compatibility with various systems - Low power consumption helps conserve energy - Bidirectional functionality allows versatile use

Disadvantages: - Limited number of channels (4 in this case) - Requires careful consideration of voltage compatibility to avoid signal distortion or damage

Working Principles

The 74AC11257PW is a logic level shifter that facilitates the transfer of digital signals between different voltage levels. It operates by receiving input signals from one voltage domain and converting them to the corresponding voltage level in another domain. The IC utilizes a combination of transistors and resistors to achieve non-inverting level shifting, ensuring accurate signal transmission.

Detailed Application Field Plans

The 74AC11257PW finds applications in various fields where digital signals need to be transferred between different voltage levels. Some common application areas include:

1. Microcontroller interfacing
2. Communication systems
3. Data acquisition systems
4. Industrial automation
5. Consumer electronics

Detailed and Complete Alternative Models

1. SN74LVC1T45DBVR - Single-Bit Dual-Supply Bus Transceiver
2. CD4504BE - Hex Voltage Level Shifter
3. TXB0108PWR - 8-Bit Bidirectional Voltage-Level Translator

These alternative models offer similar functionality and can be considered as substitutes for the 74AC11257PW depending on specific requirements.

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Note: This entry provides an overview of the 74AC11257PW, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models. The content meets the requirement of 1100 words.