MAX487CPA

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MAX487CPA

+BOM

IC TRANSCEIVER HALF 1/1 8PDIP

  • 제조업체아날로그 장비 주식회사/Maxim 통합

  • 제조업체 부품 #MAX487CPA

  • 재고6926

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사양

속성 가치
Part Status Obsolete
Base Product Number MAX487
Type Transceiver
Protocol RS422, RS485
Number of Drivers/Receivers 1/1
Duplex Half
Receiver Hysteresis 70 mV
Data Rate 250kbps
Voltage - Supply 4.75V ~ 5.25V
Operating Temperature 0°C ~ 70°C
Mounting Type Through Hole
Package 8-DIP (0.300", 7.62mm)
Supplier Device Package 8-PDIP
Packaging Tube

개요

Description

The MAX487CPA is a low-power transceiver designed for RS-485 and RS-422 communication interfaces. It is used for data transmission over long distances and in electrically noisy environments. The device operates from a single 5V supply and is capable of achieving data rates up to 250 kbps.
One of the key features of the MAX487CPA is its low power consumption, with a supply current of only 250µA. This makes it suitable for applications where power efficiency is crucial. It also offers a reduced slew-rate driver that minimizes EMI and reflections in the cable, ensuring reliable data transmission.
The transceiver is equipped with fail-safe circuitry, which guarantees a logic-high output when the receiver inputs are open or shorted. It has a wide common-mode range, allowing it to handle ground potential differences between devices.
The MAX487CPA is typically used in industrial automation, process control, and building automation systems, where robust and reliable data communication is required. Its compact 8-pin DIP package makes it easy to integrate into various systems.

Equivalent

The MAX487CPA is a low-power RS-485/RS-422 transceiver. Equivalent products include:
1. SN75176 - from Texas Instruments.
2. ADM485 - from Analog Devices.
3. SP485 - from Exar Corporation.
4. DS75176 - from National Semiconductor.
5. ST485 - from STMicroelectronics.
These alternatives offer similar functionality with variations in package types, power consumption, and operating temperature ranges. Always check specific datasheets for compatibility with your application.

Features

The MAX487CPA is a low-power transceiver for RS-485 and RS-422 communication systems. Key features include:
1. Low Power Consumption: It operates on a supply voltage range of 4.75V to 5.25V, with reduced power usage compared to standard transceivers.

2. High-Speed Data Rate: Supports data rates up to 250 kbps, making it suitable for efficient data transmission over networked environments.
3. Extended Common-Mode Range: The device supports a common-mode voltage range of -7V to +12V, allowing for reliable operation in noisy environments.
4. Low-Current Shutdown Mode: Features a low-current shutdown mode, reducing power consumption to 1µA when the device is not active.
5. Short-Circuit Protection: Includes protection against short circuits, ensuring durability and reliability in adverse conditions.
6. Thermal Shutdown: Built-in thermal protection prevents damage from excessive temperature.
7. Slew Rate Limited: To minimize electromagnetic interference (EMI), the transceiver has slew rate-limited drivers.
8. ESD Protection: Provides electrostatic discharge protection for robust operation.
These features make the MAX487CPA ideal for applications requiring reliable, low-power, and high-speed communication over long distances.

Pinout

The MAX487CPA is an 8-pin IC designed for RS-485 and RS-422 communication standards. It is a low-power transceiver that allows for differential data transmission. The specific functions of its pins are as follows:
1. RO (Pin 1): Receiver Output - provides the received data.
2. RE¯ (Pin 2): Receiver Output Enable - active low input, enables the receiver output when low.
3. DE (Pin 3): Driver Enable - controls the driver, active high.
4. DI (Pin 4): Driver Input - accepts the data to be transmitted.
5. GND (Pin 5): Ground - power supply ground connection.
6. A (Pin 6): Non-Inverting Receiver Input and Driver Output.
7. B (Pin 7): Inverting Receiver Input and Driver Output.
8. VCC (Pin 8): Supply Voltage - typically 5V.
The MAX487CPA is ideal for low-power and high-speed communication applications, supporting up to 250 kbps data rates and capable of driving long transmission lines in noisy environments.

Manufacturer

The MAX487CPA is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. Maxim Integrated was known for designing, manufacturing, and selling analog and mixed-signal integrated circuits for the consumer electronics, industrial, communications, and automotive markets. After being acquired by Analog Devices in 2021, the combined company has expanded its portfolio and capabilities in the semiconductor industry, focusing on innovation and providing solutions across a wide range of applications and industries. Analog Devices is recognized for its expertise in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits.

Application

The MAX487CPA is a low-power transceiver designed for RS-485 and RS-422 communication applications. It is commonly used in industrial and commercial systems for long-distance, reliable data transmission. Key application areas include:
1. Industrial Automation: Facilitates communication between devices like sensors, actuators, and controllers.
2. Building Automation: Used in HVAC and lighting control systems.
3. Security Systems: Enables data transfer in surveillance and alarm systems.
4. Environmental Monitoring: Used in systems requiring remote sensor data collection.
5. Telecommunications: Facilitates data exchange in network infrastructure.
6. Embedded Systems: Employed in microcontroller-based designs for robust serial communication.
Its low power consumption and capability to drive long cables make it ideal for these applications.

Package

The MAX487CPA is typically available in an 8-pin Plastic Dual In-line Package (PDIP). It is commonly used for low-power RS-485/RS-422 communication applications.

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