ISL8485CP

Product Overview

Category: Integrated Circuit (IC)

Use: ISL8485CP is a transceiver IC used for serial communication. It is specifically designed for RS-485 and RS-422 applications.

Characteristics: - High-speed data transmission - Low power consumption - Robust noise immunity - Wide operating voltage range - ESD protection - Half-duplex communication

Package: ISL8485CP is available in an 8-pin PDIP (Plastic Dual In-line Package) or SOIC (Small Outline Integrated Circuit) package.

Essence: The essence of ISL8485CP lies in its ability to facilitate reliable and efficient serial communication over long distances, while ensuring data integrity and noise immunity.

Packaging/Quantity: ISL8485CP is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Supply Voltage Range: +3.0V to +5.5V
• Data Rate: Up to 16Mbps
• Operating Temperature Range: -40°C to +85°C
• Number of Channels: 1 (Single)
• Receiver Input Resistance: 12kΩ
• Driver Output Resistance: 60Ω
• ESD Protection: ±15kV (Human Body Model)

Detailed Pin Configuration

ISL8485CP has the following 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. Y (Receiver Output)
7. Vcc (Supply Voltage)
8. Z (Receiver Output)

Functional Features

• Driver Enable (DE): Controls the driver output stage, enabling or disabling transmission.
• Receiver Enable (RE): Controls the receiver output stage, enabling or disabling reception.
• Non-Inverting Driver Output / Receiver Input (A): Non-inverting driver output and receiver input pin.
• Inverting Driver Output / Receiver Input (B): Inverting driver output and receiver input pin.
• Ground (GND): Common ground reference for the IC.
• Receiver Output (Y and Z): Outputs the received data from the RS-485/RS-422 bus.

Advantages and Disadvantages

Advantages: - High-speed data transmission capability - Wide operating voltage range allows compatibility with various systems - Robust noise immunity ensures reliable communication in noisy environments - ESD protection safeguards against electrostatic discharge damage - Half-duplex communication simplifies system design

Disadvantages: - Limited to half-duplex communication only - Requires external components for complete RS-485/RS-422 implementation

Working Principles

ISL8485CP operates based on the principles of differential signaling. It uses a balanced transmission line to transmit data, which helps in reducing noise interference. The driver stage converts the logic-level signals into differential voltages, while the receiver stage amplifies and converts the differential voltages back into logic-level signals.

Detailed Application Field Plans

ISL8485CP finds applications in various fields, including but not limited to: - Industrial automation - Building automation - Process control systems - HVAC (Heating, Ventilation, and Air Conditioning) systems - Security systems - Telecommunications equipment - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to ISL8485CP are: - MAX485 - SN75176 - LTC485 - ADM485 - SP3485

These alternative models offer similar functionality and are widely used in the industry.

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