SN74ABT821ADWR

Product Overview

Category: Integrated Circuit (IC)
Use: Logic Level Translator
Characteristics: High-speed, low-power, bidirectional voltage translation
Package: SOIC-20
Essence: Translates signals between different voltage levels
Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

Supply Voltage Range: 2.3V to 3.6V
Input Voltage Range: 0V to VCC
Output Voltage Range: 0V to VCC
Operating Temperature Range: -40°C to +85°C
Propagation Delay: 4.5ns (typical)
Output Drive Capability: ±24mA

Detailed Pin Configuration

The SN74ABT821ADWR has a total of 20 pins. The pin configuration is as follows:

Functional Features

Bidirectional voltage translation between two voltage domains
Supports level shifting between 3.3V and 2.5V systems
Enables communication between devices operating at different voltage levels
High-speed operation with minimal propagation delay
Low power consumption for energy-efficient applications

Advantages and Disadvantages

Advantages: - Allows seamless integration of components with different voltage requirements - Provides reliable signal translation without distortion - Wide supply voltage range enables compatibility with various systems - Compact package size for space-constrained designs

Disadvantages: - Limited to bidirectional voltage translation, not suitable for unidirectional applications - Requires careful consideration of input and output voltage levels to prevent signal degradation - May introduce additional complexity in circuit design and layout

Working Principles

The SN74ABT821ADWR utilizes a combination of MOSFETs and CMOS technology to achieve bidirectional voltage translation. It employs a voltage level shifting technique that allows signals to be translated between two different voltage domains. The device operates by monitoring the input voltage levels and adjusting the output voltage levels accordingly, ensuring proper signal integrity during translation.

Detailed Application Field Plans

The SN74ABT821ADWR is commonly used in various applications where voltage translation is required. Some specific application fields include:

Microcontroller interfacing with different voltage peripherals
Communication interfaces between different logic families (e.g., TTL and CMOS)
Level shifting in mixed-voltage systems
Signal translation in battery-powered devices with multiple voltage domains

Detailed and Complete Alternative Models

SN74LVC4245APW - 8-bit dual-supply bus transceiver
SN74HCT125N - Quad buffer/line driver with 3-state outputs
SN74LVCH16245ADGGR - 16-bit bus transceiver with 3-state outputs
SN74AVC4T245RGYR - 4-bit dual-supply bus transceiver with configurable voltage translation

These alternative models offer similar functionality and can be considered as alternatives to the SN74ABT821ADWR based on specific requirements and system constraints.

In conclusion, the SN74ABT821ADWR is a high-speed, low-power logic level translator IC. It enables bidirectional voltage translation between different voltage domains, making it suitable for various applications. With its compact package and wide supply voltage range, it provides a reliable solution for integrating components with different voltage requirements. However, careful consideration of input and output voltage levels is necessary to ensure proper signal translation.

技術ソリューションにおける SN74ABT821ADWR の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of SN74ABT821ADWR:

Q: What is SN74ABT821ADWR? A: SN74ABT821ADWR is a specific integrated circuit (IC) chip that belongs to the SN74ABT series. It is a dual 10-bit bus interface flip-flop with 3-state outputs.
Q: What is the purpose of SN74ABT821ADWR? A: This IC is commonly used for data storage and transfer in digital systems. It can be used to synchronize and control the flow of data between different parts of a circuit.
Q: What voltage levels does SN74ABT821ADWR support? A: SN74ABT821ADWR supports a wide range of voltage levels, typically from 4.5V to 5.5V.
Q: How many inputs and outputs does SN74ABT821ADWR have? A: SN74ABT821ADWR has 10 inputs and 10 outputs, making it suitable for handling 10-bit data.
Q: Can SN74ABT821ADWR handle bidirectional data transfer? A: No, SN74ABT821ADWR is a unidirectional device, meaning it can only transfer data in one direction.
Q: What is the maximum clock frequency supported by SN74ABT821ADWR? A: SN74ABT821ADWR can operate at clock frequencies up to 100 MHz, making it suitable for high-speed applications.
Q: Does SN74ABT821ADWR have any built-in error detection or correction features? A: No, SN74ABT821ADWR is a basic flip-flop and does not have any error detection or correction capabilities.
Q: Can SN74ABT821ADWR be used in both synchronous and asynchronous systems? A: Yes, SN74ABT821ADWR can be used in both synchronous and asynchronous systems, depending on the application requirements.
Q: What is the power consumption of SN74ABT821ADWR? A: The power consumption of SN74ABT821ADWR depends on various factors such as clock frequency, input/output loading, and supply voltage. It is typically low for most applications.
Q: Are there any specific precautions to consider when using SN74ABT821ADWR? A: It is important to follow the manufacturer's datasheet and guidelines for proper usage. Some general precautions include proper decoupling of power supply pins, avoiding excessive input/output loading, and ensuring correct voltage levels are applied.

Please note that these answers are general and may vary based on specific application requirements. Always refer to the manufacturer's datasheet for accurate information.