Encyclopedia Entry: 74ALVT16821DGGS

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics:
  • Low voltage operation
  • High-speed performance
  • Wide operating temperature range
• Package: DGGS (TSSOP-56)
• Essence: Logic level translation between different voltage domains
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.2V to 3.6V
• Input Voltage Range (High Level): 2.0V to VCC + 0.5V
• Input Voltage Range (Low Level): -0.5V to 0.8V
• Output Voltage Range (High Level): 2.0V to VCC + 0.5V
• Output Voltage Range (Low Level): -0.5V to 0.8V
• Maximum Operating Frequency: 400MHz
• Propagation Delay: 2.5ns (typical)

Detailed Pin Configuration

The 74ALVT16821DGGS IC has a total of 56 pins arranged in a TSSOP package. The pin configuration is as follows:

___________ | | 1 | | 28 2 | | 27 3 | | 26 . | | . . | | . . | | . 28 | | 55 29 | | 56 |___________|

Functional Features

• Logic Level Translation: The 74ALVT16821DGGS is designed to translate logic levels between different voltage domains. It allows seamless communication between devices operating at different voltage levels.
• High-Speed Performance: This IC offers fast switching times and low propagation delay, making it suitable for high-speed applications.
• Wide Operating Temperature Range: The 74ALVT16821DGGS can operate reliably over a wide temperature range, making it suitable for various environments.

Advantages

• Low Voltage Operation: The IC operates at low voltages, reducing power consumption and enabling compatibility with modern low-power systems.
• High-Speed Performance: Its fast switching times and low propagation delay make it ideal for applications requiring quick data transfer.
• Wide Operating Temperature Range: The ability to function reliably across a wide temperature range enhances its versatility.

Disadvantages

• Limited Voltage Range: The IC is designed for logic level translation within a specific voltage range (1.2V to 3.6V). It may not be suitable for applications requiring translation between significantly higher or lower voltage levels.

Working Principles

The 74ALVT16821DGGS utilizes a combination of MOSFETs and CMOS technology to achieve logic level translation. It employs a voltage level shifting technique to convert signals from one voltage domain to another while maintaining signal integrity and minimizing distortion.

Detailed Application Field Plans

The 74ALVT16821DGGS finds application in various fields where logic level translation is required. Some common application areas include: - Microcontrollers and microprocessors - Communication systems - Data transmission interfaces - Industrial automation - Consumer electronics

Detailed and Complete Alternative Models

• 74ALVT162821DGGR: Similar to 74ALVT16821DGGS but available in a different package (TSSOP-56)
• 74LVC16821ADGVR: Logic level translator with similar functionality but operates at a lower voltage range (1.65V to 3.6V)
• SN74LVC1T45DCKR: Single-bit level translator with bidirectional functionality

Note: This is not an exhaustive list, and there may be other alternative models available in the market.

In conclusion, the 74ALVT16821DGGS is a logic level translator IC designed for low voltage operation and high-speed performance. It enables seamless communication between devices operating at different voltage levels. With its wide operating temperature range and compact package, it finds application in various fields such as microcontrollers, communication systems, and consumer electronics. While it offers advantages like low power consumption and fast switching times, its limited voltage range may restrict its use in certain applications.