ISL81487LIB-T

Product Overview

Category: Integrated Circuit (IC)

Use: ISL81487LIB-T is a high-speed, low-power RS-485/RS-422 transceiver. It is designed to provide reliable data communication in industrial automation, building control systems, and other applications requiring long-distance data transmission.

Characteristics: - High-speed data transmission up to 20 Mbps - Low power consumption for energy-efficient operation - Robust noise immunity for reliable communication in harsh environments - Wide supply voltage range of 3V to 5.5V - ESD protection for enhanced durability

Package: The ISL81487LIB-T is available in a small outline integrated circuit (SOIC) package, which provides ease of integration into various electronic systems.

Essence: This IC serves as a bridge between the microcontroller or processor and the RS-485/RS-422 bus, enabling bidirectional data transfer over long distances with minimal power consumption.

Packaging/Quantity: The ISL81487LIB-T is typically sold in reels containing 2500 units per reel.

Specifications

• Supply Voltage Range: 3V to 5.5V
• Data Rate: Up to 20 Mbps
• Operating Temperature Range: -40°C to +85°C
• Number of Pins: 8
• Package Type: SOIC

Detailed Pin Configuration

The ISL81487LIB-T features the following pin configuration:

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

Functional Features

• Half-duplex communication mode
• Built-in fail-safe receiver
• Thermal shutdown protection
• Short-circuit and overvoltage protection
• Receiver input hysteresis for noise rejection

Advantages and Disadvantages

Advantages: - High-speed data transmission capability - Low power consumption - Wide supply voltage range - Robust noise immunity - Integrated protection features

Disadvantages: - Limited to half-duplex communication

Working Principles

The ISL81487LIB-T operates by converting the differential signals from the microcontroller or processor into balanced RS-485/RS-422 signals suitable for long-distance transmission. It uses a combination of driver and receiver circuits to enable bidirectional data transfer while maintaining noise immunity and signal integrity.

Detailed Application Field Plans

The ISL81487LIB-T is widely used in various industrial automation and control systems, including: - Factory automation - Process control - Building management systems - HVAC (Heating, Ventilation, and Air Conditioning) control - Access control systems - Security systems

Detailed and Complete Alternative Models

1. MAX485ESA+: Similar specifications and features, available in an 8-pin SOIC package.
2. SN65HVD485EDR: Comparable performance, available in a 14-pin SOIC package.
3. LTC2854IGN: Higher data rate capability, available in a 16-pin SSOP package.

These alternative models offer similar functionality and can be considered as substitutes for the ISL81487LIB-T based on specific application requirements.

In conclusion, the ISL81487LIB-T is a high-speed, low-power RS-485/RS-422 transceiver designed for reliable data communication in industrial automation and control systems. Its robust characteristics, compact package, and integrated protection features make it a versatile choice for various applications.