MAX487ESA+TCBX

Product Overview

• Category: Integrated Circuits (ICs)
• Use: Transceiver
• Characteristics: Low-power, RS-485/RS-422 transceiver
• Package: 8-SOIC (Small Outline Integrated Circuit)
• Essence: MAXIM Integrated Products' MAX487ESA+TCBX is a low-power transceiver designed for RS-485 and RS-422 communication protocols.
• Packaging/Quantity: Tape & Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 4.75V to 5.25V
• Data Rate: Up to 2.5Mbps
• Operating Temperature Range: -40°C to +85°C
• Number of Drivers/Receivers: 1/1
• ESD Protection: ±15kV Human Body Model
• RoHS Compliant: Yes

Pin Configuration

The MAX487ESA+TCBX features an 8-pin Small Outline Integrated Circuit (SOIC) package with the following pin configuration:

```

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| | --| A B Y |-- --| GND B.R V+ |-- |___________| ```

• A: Driver Input / Receiver Output A
• B: Driver Input / Receiver Output B
• Y: Receiver Output / Driver Input
• GND: Ground
• B.R: Bus Receiver Input
• V+: Positive Power Supply

Functional Features

• Low-power shutdown mode
• Enhanced ESD protection
• Half-duplex communication
• Wide supply voltage range
• Short-circuit protection
• Thermal shutdown protection

Advantages

• Low power consumption
• High data rate capability
• Robust ESD protection
• Wide operating temperature range
• Compact and industry-standard package

Disadvantages

• Limited number of drivers/receivers (1/1)
• Requires external components for complete functionality

Working Principles

The MAX487ESA+TCBX is designed to facilitate reliable communication between RS-485 and RS-422 devices. It operates in a half-duplex mode, allowing bidirectional data transmission over a single twisted-pair cable. The transceiver features built-in protection against electrostatic discharge (ESD) and short-circuit conditions. It also incorporates thermal shutdown circuitry to prevent damage due to excessive heat.

Detailed Application Field Plans

The MAX487ESA+TCBX finds applications in various industries where robust and reliable communication is required. Some of the common application fields include:

1. Industrial Automation: Used for communication between PLCs (Programmable Logic Controllers), sensors, and actuators in industrial control systems.
2. Building Automation: Enables communication between different building automation devices such as HVAC (Heating, Ventilation, and Air Conditioning) systems, lighting controls, and access control systems.
3. Automotive: Facilitates communication between various automotive subsystems, including engine control units, body control modules, and infotainment systems.
4. Telecommunications: Used in networking equipment for long-distance data transmission over RS-485/RS-422 networks.
5. Renewable Energy Systems: Enables communication between solar inverters, wind turbines, and energy management systems.

Detailed and Complete Alternative Models

1. SN75176BP - Texas Instruments
2. LTC2857IGN#PBF - Analog Devices Inc.
3. ADM485ARZ - Analog Devices Inc.
4. SP3485EN-L/TR - Exar Corporation
5. ST485BDR - STMicroelectronics

These alternative models offer similar functionality and are compatible with RS-485/RS-422 communication protocols.

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