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SN65HVD21D
Product Overview
Category
The SN65HVD21D belongs to the category of integrated circuits (ICs) specifically designed for use in communication systems.
Use
This IC is commonly used as a transceiver in industrial applications, providing reliable and efficient data transmission over long distances.
Characteristics
- High-speed data transmission: The SN65HVD21D supports data rates up to 1 Mbps, making it suitable for applications requiring fast and reliable communication.
- Robustness: This transceiver is designed to withstand harsh industrial environments, offering enhanced protection against electrostatic discharge (ESD) and other electrical disturbances.
- Low power consumption: The SN65HVD21D is optimized for low power operation, making it ideal for battery-powered devices or applications where energy efficiency is crucial.
Package
The SN65HVD21D is available in a small outline integrated circuit (SOIC) package, which provides ease of integration into various electronic systems.
Essence
The essence of the SN65HVD21D lies in its ability to facilitate reliable and high-speed communication in industrial settings, ensuring seamless data exchange between different components of a system.
Packaging/Quantity
This IC is typically sold in reels or tubes, with each reel or tube containing a specific quantity of SN65HVD21D transceivers. The exact quantity may vary depending on the manufacturer's specifications.
Specifications
- Supply voltage range: 3.3V to 5V
- Data rate: Up to 1 Mbps
- Operating temperature range: -40°C to +85°C
- ESD protection: ±16 kV (Human Body Model)
- Package type: SOIC-8
Detailed Pin Configuration
The SN65HVD21D features an 8-pin configuration, with each pin serving a specific function:
- VCC: Power supply voltage input
- GND: Ground reference
- RO: Receiver output
- DI: Driver input
- DE: Driver output enable
- RE: Receiver output enable
- VREF: Reference voltage for receiver input threshold
- RS: Receiver input
Functional Features
- Half-duplex communication: The SN65HVD21D supports half-duplex operation, allowing data transmission in both directions but not simultaneously.
- Differential signaling: This transceiver utilizes differential signaling to improve noise immunity and signal integrity, ensuring reliable data transmission even in noisy environments.
- Built-in protection features: The IC incorporates various protection mechanisms, including short-circuit protection and thermal shutdown, enhancing system reliability and preventing damage to the device.
Advantages and Disadvantages
Advantages
- High-speed data transmission capability
- Robustness against electrical disturbances
- Low power consumption for energy-efficient operation
- Compact package for easy integration
Disadvantages
- Limited to half-duplex communication
- Requires external components for complete functionality
Working Principles
The SN65HVD21D operates based on the principles of differential signaling. It receives data through the RS pin, which is then processed and transmitted via the DI pin. The receiver output (RO) provides the received data to the connected system. The driver output enable (DE) and receiver output enable (RE) pins control the direction of data transmission.
Detailed Application Field Plans
The SN65HVD21D finds extensive application in various industrial fields, including: - Factory automation systems - Process control systems - Building automation systems - Industrial robotics - Motor control systems
In these applications, the SN65HVD21D enables reliable and efficient communication between different components, facilitating seamless operation and data exchange.
Detailed and Complete Alternative Models
- SN65HVD22D: Similar to SN65HVD21D, but with additional features such as bus fault protection and enhanced ESD performance.
- MAX485: A popular alternative transceiver IC with similar characteristics and functionality.
- LTC2875: Another alternative offering high-speed data transmission and robustness for industrial applications.
These alternative models provide similar functionality to the SN65HVD21D and can be considered based on specific application requirements.
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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SN65HVD21D v technických řešeních
Sure! Here are 10 common questions and answers related to the application of SN65HVD21D in technical solutions:
Q: What is SN65HVD21D? A: SN65HVD21D is a transceiver chip designed for use in applications that require robust communication over long distances using the Controller Area Network (CAN) protocol.
Q: What is the operating voltage range of SN65HVD21D? A: SN65HVD21D operates within a voltage range of 3.3V to 5V, making it compatible with a wide range of microcontrollers and systems.
Q: Can SN65HVD21D be used in automotive applications? A: Yes, SN65HVD21D is suitable for automotive applications as it meets the requirements of the CAN physical layer specification ISO 11898-2.
Q: What is the maximum data rate supported by SN65HVD21D? A: SN65HVD21D supports data rates up to 1 Mbps, allowing for high-speed communication in various industrial and automotive applications.
Q: Does SN65HVD21D have built-in protection features? A: Yes, SN65HVD21D includes built-in protection features such as thermal shutdown, undervoltage lockout, and bus fault protection, ensuring reliable operation in harsh environments.
Q: Can SN65HVD21D be used in multi-node networks? A: Yes, SN65HVD21D can be used in multi-node networks as it supports both differential and single-ended signaling, enabling flexible network topologies.
Q: Is SN65HVD21D compatible with other CAN transceivers? A: Yes, SN65HVD21D is compatible with other CAN transceivers that adhere to the ISO 11898-2 standard, allowing for seamless integration into existing CAN networks.
Q: What is the typical quiescent current consumption of SN65HVD21D? A: The typical quiescent current consumption of SN65HVD21D is around 5 mA, making it suitable for low-power applications.
Q: Can SN65HVD21D operate in extended temperature ranges? A: Yes, SN65HVD21D is designed to operate in extended temperature ranges from -40°C to +125°C, ensuring reliable performance in harsh environments.
Q: Are there any evaluation boards or reference designs available for SN65HVD21D? A: Yes, Texas Instruments provides evaluation boards and reference designs for SN65HVD21D, which can help developers quickly prototype and integrate the chip into their applications.
Please note that these answers are general and may vary depending on specific application requirements.