MAX308EPE+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: MAX308EPE+ is a high-speed, low-power RS-485/RS-422 transceiver. It is designed to provide reliable data transmission over long distances in industrial environments.

Characteristics: - High-speed communication: MAX308EPE+ supports data rates up to 250kbps. - Low power consumption: The transceiver operates at a low supply current of 300µA, making it suitable for battery-powered applications. - Robustness: It features ±15kV ESD protection on the bus pins, ensuring reliable operation in harsh industrial environments. - Wide supply voltage range: MAX308EPE+ can operate from a single +5V supply or dual ±12V supplies.

Package: MAX308EPE+ is available in an 16-pin plastic DIP (Dual In-line Package) with exposed pad for enhanced thermal performance.

Essence: The essence of MAX308EPE+ lies in its ability to facilitate long-distance data communication in industrial settings while maintaining high reliability and low power consumption.

Packaging/Quantity: MAX308EPE+ is typically sold in reels containing 2,500 units per reel.

Specifications

• Supply Voltage Range: +4.75V to +5.25V
• Operating Temperature Range: -40°C to +85°C
• Data Rate: Up to 250kbps
• Number of Channels: 1
• Input Logic Levels: CMOS/TTL
• Output Logic Levels: RS-485/RS-422
• ESD Protection: ±15kV (Human Body Model)
• Package Type: 16-pin Plastic DIP with Exposed Pad

Pin Configuration

The pin configuration of MAX308EPE+ is as follows:

```

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| | --| VCC GND |-- Pin 1: Ground (GND) --| RO RE- |-- Pin 2: Receiver Output (RO) --| RE+ DE- |-- Pin 3: Receiver Enable (RE-) --| DE+ DI |-- Pin 4: Driver Enable (DE-) --| DI A |-- Pin 5: Data Input (DI) --| B Y |-- Pin 6: Data Output (Y) --| Z B |-- Pin 7: Inverting Driver Output (Z) --| A Z |-- Pin 8: Non-Inverting Driver Output (A) --| Y DE+ |-- Pin 9: Driver Output Enable (DE+) --| DE- RE+ |-- Pin 10: Receiver Output Enable (RE+) --| RE- RO |-- Pin 11: Receiver Input (RO) --| DI DE+ |-- Pin 12: Driver Input (DI) --| DE- RE- |-- Pin 13: Receiver Enable (RE-) --| RE+ DE- |-- Pin 14: Receiver Output Enable (RE+) --| DE+ DI |-- Pin 15: Driver Enable (DE-) --| GND VCC |-- Pin 16: Power Supply (VCC) |___________| ```

Functional Features

• RS-485/RS-422 Compatibility: MAX308EPE+ is fully compatible with both RS-485 and RS-422 standards, allowing for versatile communication options.
• Driver and Receiver Enable Control: The transceiver provides separate control pins for enabling the driver and receiver circuits, allowing for flexible data transmission control.
• Low Power Consumption: With a supply current of only 300µA, MAX308EPE+ minimizes power consumption, making it suitable for battery-powered applications.
• ESD Protection: The transceiver features ±15kV ESD protection on the bus pins, ensuring reliable operation in industrial environments with electrostatic discharge risks.

Advantages and Disadvantages

Advantages: - High-speed communication capability - Low power consumption - Robustness against ESD - Wide supply voltage range

Disadvantages: - Limited number of channels (only 1)

Working Principles

MAX308EPE+ operates based on the RS-485/RS-422 standards. It uses differential signaling to transmit data over long distances while minimizing noise interference. The driver circuit converts the logic-level input signals into balanced differential voltages, which are then transmitted through the twisted-pair cable. On the receiving end, the receiver circuit detects the differential voltages and converts them back into logic-level signals.

Detailed Application Field Plans

MAX308EPE+ finds applications in various industrial fields where long-distance data communication is required. Some of the potential application areas include: - Industrial automation systems - Building automation