ISL32433EIUZ

Product Overview

Category: Integrated Circuit (IC)

Use: ISL32433EIUZ is a high-speed, 3.3V powered, single-channel RS-485/RS-422 transceiver. It is designed to provide robust serial communication in industrial automation, building control, and other harsh environments.

Characteristics: - High-speed data transmission up to 20Mbps - Supports full-duplex or half-duplex communication - Wide common-mode voltage range (-7V to +12V) - Low quiescent current consumption (less than 1μA) - Enhanced ESD protection (±15kV HBM, ±8kV IEC61000-4-2 Air Gap Discharge, and ±6kV IEC61000-4-2 Contact Discharge) - Available in a small 16-lead QFN package

Package: The ISL32433EIUZ is packaged in a 16-lead QFN (Quad Flat No-Lead) package, which provides excellent thermal performance and compact size.

Essence: This IC serves as a reliable and efficient interface between microcontrollers or other digital devices and RS-485/RS-422 networks, enabling secure and noise-immune data transmission over long distances.

Packaging/Quantity: The ISL32433EIUZ is typically sold in reels containing 250 units per reel.

Specifications

• Supply Voltage: 3.0V to 3.6V
• Operating Temperature Range: -40°C to +85°C
• Data Rate: Up to 20Mbps
• Number of Channels: 1
• Receiver Input Resistance: 12kΩ
• Driver Output Resistance: 35Ω
• Maximum Bus Length: 1200m (at lower data rates)
• ESD Protection: ±15kV (HBM), ±8kV (IEC61000-4-2 Air Gap Discharge), ±6kV (IEC61000-4-2 Contact Discharge)

Detailed Pin Configuration

The ISL32433EIUZ features a 16-pin QFN package with the following pin configuration:

1. DE - Driver Output Enable
2. RE - Receiver Output Enable
3. RO - Receiver Output
4. DI - Driver Input
5. GND - Ground
6. VCC - Power Supply
7. A - RS-485/RS-422 Data Line A
8. B - RS-485/RS-422 Data Line B
9. NC - No Connection
10. NC - No Connection
11. NC - No Connection
12. NC - No Connection
13. NC - No Connection
14. NC - No Connection
15. NC - No Connection
16. NC - No Connection

Functional Features

• Robust RS-485/RS-422 communication interface
• Supports half-duplex or full-duplex operation
• Low power consumption for energy-efficient applications
• Wide common-mode voltage range for improved noise immunity
• Enhanced ESD protection for reliable operation in harsh environments
• High-speed data transmission for time-critical applications

Advantages and Disadvantages

Advantages: - High-speed data transmission capability - Wide common-mode voltage range - Low power consumption - Enhanced ESD protection - Compact and thermally efficient package

Disadvantages: - Limited to single-channel operation - Requires external components for complete functionality

Working Principles

The ISL32433EIUZ operates as an interface between a microcontroller or digital device and an RS-485/RS-422 network. It converts the digital signals from the microcontroller into balanced differential signals suitable for transmission over long distances. The receiver section of the IC converts the incoming differential signals back into digital data, ensuring reliable communication.

Detailed Application Field Plans

The ISL32433EIUZ is widely used in various industrial automation and control applications, including: - Building automation systems - Process control systems - Factory automation - HVAC (Heating, Ventilation, and Air Conditioning) systems - Robotics - Energy management systems - Security systems

Detailed and Complete Alternative Models

• MAX485EESA+: Similar RS-485/RS-422 transceiver with 5V supply voltage compatibility.
• SN65HVD485EDR: RS-485 transceiver with extended temperature range (-40°C to +125°C).
• LTC2857IGN#PBF: High-speed RS-485 transceiver with integrated ESD protection and fault detection features.

These alternative models offer similar functionality and can be considered as substitutes for the ISL32433EIUZ in specific applications.

In conclusion, the ISL32433EIUZ is a high-speed, single-channel