SN75HVD11DR

Product Overview

Category

SN75HVD11DR belongs to the category of integrated circuits (ICs) and specifically falls under the family of RS-485/RS-422 transceivers.

Use

This product is commonly used for bidirectional data communication over long distances in industrial automation, building automation, and other applications requiring robust and noise-immune serial communication.

Characteristics

• Supports data rates up to 20 Mbps
• Operates with a wide supply voltage range of 3 V to 5.5 V
• Provides a differential driver and receiver for balanced transmission lines
• Offers enhanced ESD protection for reliable operation in harsh environments
• Features low power consumption for energy-efficient designs

Package

SN75HVD11DR is available in an SOIC-8 package, which stands for Small Outline Integrated Circuit. This package type provides a compact form factor and ease of integration into various electronic systems.

Essence

The essence of SN75HVD11DR lies in its ability to enable reliable and high-speed data communication over long distances while maintaining noise immunity and robustness.

Packaging/Quantity

SN75HVD11DR is typically supplied in reels or tubes, with each reel containing 2500 units or each tube containing 98 units.

Specifications

• Supply Voltage Range: 3 V to 5.5 V
• Data Rate: Up to 20 Mbps
• Operating Temperature Range: -40°C to +85°C
• Number of Pins: 8
• Input/Output Type: Differential
• ESD Protection: ±16 kV (Human Body Model)

Detailed Pin Configuration

1. DE (Driver Enable)
2. /RE (Receiver Enable)
3. A (Non-Inverting Driver Output / Receiver Input)
4. B (Inverting Driver Output / Receiver Input)
5. GND (Ground)
6. B (Inverting Driver Output / Receiver Input)
7. A (Non-Inverting Driver Output / Receiver Input)
8. VCC (Supply Voltage)

Functional Features

• Driver and receiver enable control for flexible operation
• Thermal shutdown protection to prevent overheating
• Wide supply voltage range allows compatibility with various systems
• Enhanced ESD protection ensures reliability in harsh environments
• Low power consumption for energy-efficient designs

Advantages and Disadvantages

Advantages

• High-speed data communication up to 20 Mbps
• Robust and noise-immune transmission over long distances
• Compact form factor for easy integration
• Wide supply voltage range for compatibility
• Enhanced ESD protection for reliability

Disadvantages

• Limited number of pins for I/O connections
• Requires additional external components for complete functionality

Working Principles

SN75HVD11DR operates based on the RS-485/RS-422 standard, which uses differential signaling to transmit data. The driver section converts the logic-level signals into a balanced differential output, while the receiver section converts the received differential signals back into logic-level signals.

The driver and receiver sections are controlled by the DE and /RE pins, allowing flexible operation depending on the application requirements. The integrated thermal shutdown protection prevents the IC from overheating during prolonged operation.

Detailed Application Field Plans

SN75HVD11DR finds extensive use in various applications, including: 1. Industrial automation systems 2. Building automation systems 3. HVAC (Heating, Ventilation, and Air Conditioning) control 4. Access control systems 5. Security systems 6. Data acquisition systems 7. Instrumentation and measurement equipment

Detailed and Complete Alternative Models

1. MAX485 - Manufactured by Maxim Integrated
2. LTC485 - Manufactured by Linear Technology
3. SP3485 - Manufactured by Exar Corporation
4. SN65HVD11 - Manufactured by Texas Instruments

These alternative models offer similar functionality and can be considered as alternatives to SN75HVD11DR based on specific application requirements.

In conclusion, SN75HVD11DR is a versatile RS-485/RS-422 transceiver that enables reliable and high-speed data communication over long distances. Its compact form factor, wide supply voltage range, and enhanced ESD protection make it suitable for various industrial and building automation applications. However, it has a limited number of pins and requires additional external components for complete functionality. Alternative models such as MAX485, LTC485, SP3485, and SN65HVD11 provide similar features and can be considered as alternatives.