MAX4854HETE+T

Product Overview

• Category: Integrated Circuits
• Use: Transceiver
• Characteristics: High-speed, low-power, half-duplex RS-485/RS-422 transceiver
• Package: TQFN-16
• Essence: MAX4854HETE+T is a highly efficient and reliable transceiver designed for industrial communication applications.
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 3.0V to 5.5V
• Data Rate: Up to 20Mbps
• Operating Temperature Range: -40°C to +85°C
• Number of Channels: 1
• Half-Duplex (HD) or Full-Duplex (FD): HD
• ESD Protection: ±15kV HBM, ±8kV IEC61000-4-2 Air-Gap Discharge, ±6kV IEC61000-4-2 Contact Discharge

Pin Configuration

The MAX4854HETE+T has a total of 16 pins arranged as follows:

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| | | 1 2 3 | | | | 4 5 6 | | | | 7 8 9 | | | | 10 11 12 | | | | 13 14 15 | |_______________| ```

Functional Features

• High-Speed Data Transmission: The MAX4854HETE+T supports data rates up to 20Mbps, making it suitable for high-speed industrial communication applications.
• Low Power Consumption: This transceiver operates at low power levels, ensuring energy efficiency and reducing overall system power consumption.
• Half-Duplex Operation: The MAX4854HETE+T supports half-duplex communication, allowing data transmission in both directions on a single communication line.
• ESD Protection: With built-in ESD protection, this transceiver provides robustness against electrostatic discharge events, ensuring reliable operation in harsh industrial environments.

Advantages and Disadvantages

Advantages: - High-speed data transmission capability - Low power consumption - Robust ESD protection - Compact package size

Disadvantages: - Limited to half-duplex communication

Working Principles

The MAX4854HETE+T is designed based on the RS-485/RS-422 standard. It uses differential signaling to transmit and receive data over long distances. The transceiver converts the logic-level signals from the microcontroller into balanced differential signals suitable for transmission over twisted-pair cables. It also provides receiver input filtering and driver output slew-rate control to ensure reliable data communication.

Detailed Application Field Plans

The MAX4854HETE+T is widely used in various industrial communication applications, including:

1. Building Automation Systems: It enables communication between different devices in a building automation system, such as HVAC systems, lighting controls, and access control systems.
2. Industrial Control Systems: It facilitates communication between PLCs (Programmable Logic Controllers), sensors, actuators, and other industrial control devices.
3. Process Control Systems: It allows for reliable data exchange between different components of a process control system, ensuring efficient monitoring and control of industrial processes.
4. Instrumentation Systems: It enables communication between measurement instruments, data loggers, and control units, ensuring accurate data acquisition and analysis.

Detailed and Complete Alternative Models

1. MAX485ESA+: Similar to MAX4854HETE+T, but in an SOIC-8 package.
2. MAX485CPA+: Similar to MAX4854HETE+T, but in a DIP-8 package.
3. MAX3485ESA+: RS-485 transceiver with similar specifications, but optimized for full-duplex communication.

These alternative models provide similar functionality and can be used as substitutes depending on the specific requirements of the application.

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