SN65HVD251D

Product Overview

• Category: Integrated Circuit (IC)
• Use: Transceiver
• Characteristics: High-speed, low-power, half-duplex communication
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Provides a reliable and efficient communication link between microcontrollers or other digital devices
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage Range: 3 V to 5.5 V
• Data Rate: Up to 1 Mbps
• Operating Temperature Range: -40°C to +85°C
• Number of Pins: 8
• Pin Pitch: 1.27 mm

Detailed Pin Configuration

1. VCC: Power supply input
2. GND: Ground reference
3. RO: Receiver output
4. DI: Driver input
5. DE: Driver enable
6. RE: Receiver enable
7. RS: Slope control
8. NC: No connection

Functional Features

• Half-Duplex Communication: Allows transmission and reception on a single communication line
• Low Power Consumption: Optimized for battery-powered applications
• ESD Protection: Built-in protection against electrostatic discharge
• Fail-Safe Receiver: Ensures a high-level output when the bus is idle or shorted
• Wide Supply Voltage Range: Compatible with various microcontroller systems

Advantages

• High-Speed Communication: Supports data rates up to 1 Mbps
• Robust Design: Withstands harsh industrial environments
• Easy Integration: Simple interface with microcontrollers and other digital devices
• Cost-Effective Solution: Provides reliable communication at an affordable price

Disadvantages

• Half-Duplex Limitation: Cannot transmit and receive simultaneously
• Limited Data Rate: Not suitable for applications requiring higher speeds
• Small Package Size: Requires careful handling during assembly

Working Principles

The SN65HVD251D is a half-duplex transceiver that uses differential signaling to transmit and receive data. It operates by converting digital signals from a microcontroller into balanced voltage levels suitable for transmission over a communication line. The receiver section converts the received differential signals back into digital data.

Detailed Application Field Plans

• Industrial Automation: Used in control systems for communication between sensors, actuators, and controllers
• Automotive Electronics: Enables communication between various electronic modules in vehicles
• Home Automation: Facilitates communication between smart devices and central control units
• Telecommunications: Provides reliable data transmission in networking equipment

Detailed and Complete Alternative Models

1. MAX485: Similar half-duplex transceiver with higher data rate capability
2. LTC2862: Low-power transceiver with extended temperature range
3. SN65HVD230: Lower-cost alternative with reduced features

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