MAX487ESA+T

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MAX487ESA+T

+БОМ

IC TRANSCEIVER HALF 1/1 8SOIC

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Спецификации

Атрибут Ценность
Supplier Analog Devices Inc./Maxim Integrated
Package Tape & Reel (TR)
ProductStatus Obsolete
Type Transceiver
Protocol RS422, RS485
NumberofDrivers/Receivers 1/1
Duplex Half
ReceiverHysteresis 70 mV
DataRate 250kbps
Voltage-Supply 4.75V ~ 5.25V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

Обзор

Description

The MAX487ESA+T is a low-power, half-duplex RS-485/RS-422 transceiver, designed for high-speed communication in industrial and commercial applications. It operates from a single 5V supply and features ±15kV ESD protection on the transceiver interface pins, enhancing its durability against electrostatic discharges. The device supports data rates up to 2.5Mbps and is capable of operating over extended temperature ranges, making it suitable for challenging environments.
One of its key features is its reduced power consumption, using only 120µA in active mode and 1µA in shutdown mode, which conserves energy in battery-powered systems. The MAX487ESA+T can accommodate up to 32 transceivers on a single bus due to its 1/8 unit load receiver input impedance, allowing for scalable network configurations. Additionally, its fail-safe receiver ensures a logic-high output when inputs are open or shorted.
The T in the part number indicates that it is supplied in a tape-and-reel packaging format, convenient for automated assembly processes. This makes the MAX487ESA+T a robust and versatile choice for reliable serial communication.

Equivalent

The MAX487ESA+T is a low-power RS-485/RS-422 transceiver. Equivalent products include the TI SN75176B, the LTC485 from Analog Devices, the ADM485 from Analog Devices, and the SN65HVD485E from Texas Instruments. These components typically offer similar functionalities, such as half-duplex communication, low power consumption, and compatibility with RS-485 and RS-422 standards. Always verify specific electrical characteristics and pin configurations to ensure full compatibility with your application.

Features

The MAX487ESA+T is a low-power, low-voltage transceiver for RS-485/RS-422 communication. Key features include:
1. Low Power Consumption: Operates with minimal power usage, making it suitable for battery-powered applications.
2. Wide Operating Voltage Range: Supports a voltage range from 4.75V to 5.25V.
3. High Data Rate: Capable of data rates up to 250 kbps.
4. Short-Circuit Protection: Protects against line faults.
5. Thermal Shutdown: Includes a thermal shutdown feature to prevent overheating.
6. ESD Protection: Provides enhanced electrostatic discharge protection.
7. Reduced EMI: Features slew-rate limited drivers to minimize electromagnetic interference.
8. Half-Duplex Communication: Supports half-duplex operation, allowing for bidirectional data transmission on a single line.
9. Receiver Fail-Safe: Ensures a known output state when inputs are open or shorted.
10. Industry-Standard Pinout: Compatible with the industry-standard pin configuration for easy integration.
These features make the MAX487ESA+T an excellent choice for robust, efficient communication in industrial and commercial applications.

Pinout

The MAX487ESA+T is an 8-pin SOIC (Small Outline Integrated Circuit) package. It is a low-power transceiver for RS-485 and RS-422 communication systems. Here is a brief overview of its pin functions:
1. RO (Receiver Output): Outputs the received data.
2. RE̅ (Receiver Enable): Active-low input to enable or disable the receiver. When low, the receiver is enabled.
3. DE (Driver Enable): Enables or disables the driver. When high, the driver is enabled.
4. DI (Driver Input): Data input for the driver.
5. GND: Ground connection.
6. A: Non-inverting receiver input and driver output.
7. B: Inverting receiver input and driver output.
8. VCC: Positive supply voltage.
This device is designed for half-duplex communication and features low power consumption, making it suitable for battery-powered applications. It supports data rates up to 250 kbps and is optimized for long-distance data transmission with high noise immunity.

Manufacturer

The MAX487ESA+T is manufactured by Maxim Integrated, which is now a part of Analog Devices, Inc. Maxim Integrated was known for designing, manufacturing, and marketing a broad range of analog and mixed-signal integrated circuits. Analog Devices, Inc., its parent company, is a multinational corporation specializing in the design and manufacturing of semiconductor products and solutions. Analog Devices is recognized for its innovations in analog, mixed-signal, and digital signal processing technologies, serving various industries including communications, automotive, industrial, healthcare, and consumer electronics. The MAX487ESA+T is a low-power transceiver for RS-485 and RS-422 communications, showcasing the company's expertise in providing solutions for efficient data communication and signal processing.

Application

The MAX487ESA+T is a low-power transceiver designed for RS-485 and RS-422 communication protocols. Its application areas include:
1. Industrial Automation: Facilitates communication in factory automation systems and process control networks.
2. Building Automation: Used in HVAC systems, security systems, and centralized control systems.
3. Telecommunications: Supports long-distance data transmission in telecom networks.
4. Energy Management: Applied in smart grid and metering systems for reliable data communication.
5. Embedded Systems: Integrates in microcontroller-based designs for robust serial communication.
6. Retail Systems: Connects point-of-sale systems and peripherals.
Its low-power consumption and the capability to operate over extended distances make it suitable for these applications.

Package

The MAX487ESA+T is a surface-mount package, specifically in an 8-pin SOIC (Small Outline Integrated Circuit) configuration. The "+T" indicates it is supplied in a tape-and-reel format for automated assembly processes.

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