MAX488EESA+G002

Product Overview

• Category: Integrated Circuit (IC)
• Use: RS-485/RS-422 Transceiver
• Characteristics: High-speed, low-power, half-duplex communication
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: MAX488EESA+G002 is a versatile IC used for bidirectional data communication over long distances in industrial and automotive applications.
• Packaging/Quantity: Available in tape and reel packaging with 2500 units per reel.

Specifications

• Supply Voltage: 4.5V to 5.5V
• Data Rate: Up to 2.5Mbps
• Operating Temperature Range: -40°C to +85°C
• Number of Drivers/Receivers: 1 Driver, 1 Receiver
• Driver Output Current: ±60mA
• Receiver Input Voltage Range: ±12V
• Shutdown Mode: Low power consumption (<1µA)

Pin Configuration

The MAX488EESA+G002 has the following pin configuration:

```

---

| | --| VCC GND |-- Pin 1: Power Supply --| RO RE |-- Pin 2: Receiver Output / Receiver Enable --| DI DE |-- Pin 3: Driver Input / Driver Enable --| DE /RE |-- Pin 4: Driver Enable / Receiver Enable (Active Low) --| A B |-- Pin 5: Differential Data Inputs/Outputs --| B A |-- Pin 6: Differential Data Inputs/Outputs --| Y Z |-- Pin 7: Receiver Output / Driver Output --| GND VCC |-- Pin 8: Ground |___________| ```

Functional Features

• Supports RS-485 and RS-422 standards
• Allows half-duplex communication over long distances
• Provides high-speed data transmission up to 2.5Mbps
• Low power consumption in shutdown mode
• Built-in fail-safe receiver ensures a known output state when inputs are open or shorted

Advantages and Disadvantages

Advantages: - Versatile IC suitable for industrial and automotive applications - High-speed data transmission capability - Low power consumption in standby mode - Fail-safe receiver enhances reliability

Disadvantages: - Limited to half-duplex communication only - Requires external components for complete functionality

Working Principles

The MAX488EESA+G002 is designed to facilitate bidirectional data communication over long distances using the RS-485/RS-422 standards. It incorporates a driver and a receiver, allowing data transmission in both directions. The driver converts logic-level signals into differential voltage signals suitable for long-distance transmission, while the receiver converts received differential signals back into logic-level signals.

The IC operates on a single 5V power supply and supports data rates of up to 2.5Mbps. It features a low-power shutdown mode, which reduces power consumption to less than 1µA when not actively transmitting or receiving data.

Detailed Application Field Plans

The MAX488EESA+G002 finds extensive use in various industrial and automotive applications, including:

1. Industrial Automation Systems: Used for communication between PLCs (Programmable Logic Controllers), sensors, and actuators in factory automation systems.
2. Building Automation: Enables data exchange between control panels, HVAC systems, lighting controls, and other building automation devices.
3. Automotive Electronics: Facilitates communication between different electronic modules in vehicles, such as engine control units, body control modules, and infotainment systems.
4. Instrumentation and Measurement: Allows for long-distance data transmission in test and measurement equipment, data loggers, and industrial instrumentation.

Detailed and Complete Alternative Models

• MAX485EESA+G002
• SN75176BP
• LTC485CN8
• ADM485ARZ
• SP3485EN-L/TR

These alternative models offer similar functionality to the MAX488EESA+G002 and can be used as replacements depending on specific requirements and availability.

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