MAX485CSA+

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MAX485CSA+

+BOM

IC TRANSCEIVER HALF 1/1 8SOIC

  • Nhà sản xuấtAnalog Devices Inc./Maxim tích hợp

  • Ông. Phần #MAX485CSA+

  • Có sẵn6769

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Thông số kỹ thuật

thuộc tính Giá trị
Part Status Obsolete
Base Product Number MAX485
Type Transceiver
Protocol RS422, RS485
Number of Drivers/Receivers 1/1
Duplex Half
Data Rate 2.5Mbps
Voltage - Supply 4.75V ~ 5.25V
Operating Temperature 0°C ~ 70°C
Mounting Type Surface Mount
Package 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC
Packaging Tube
Receiver Hysteresis 70 mV

Tổng quan

Description

The MAX485CSA+ is a low-power, low-slew-rate transceiver designed for RS-485 and RS-422 communication. It operates from a single 5V supply and supports data rates up to 2.5 Mbps. The transceiver is designed to minimize electromagnetic interference (EMI) and reduce reflections in data transmission, making it suitable for long-distance and high-speed data communication.
The device features a differential driver and receiver, allowing it to handle twisted pair cables commonly used in industrial and commercial environments. It includes a fail-safe feature that ensures a known output state when inputs are disconnected or idle. The MAX485CSA+ also supports half-duplex communication, meaning it can send and receive data, but not simultaneously.
Key features include low power consumption, with a typical supply current of 300 µA, and the ability to drive up to 32 transceivers on a single bus. It is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) package, making it compact and easy to integrate into various designs. The MAX485CSA+ is ideal for applications where reliable, high-speed data communication is required.

Equivalent

The MAX485CSA+ is a low-power RS-485/RS-422 transceiver. Equivalent products include:
1. Texas Instruments SN75176 or SN65HVD12
2. Analog Devices ADM485
3. Microchip Technology MCP485
4. STMicroelectronics SP485E or ST3485E
5. Exar Corporation SP485
These alternatives provide similar functionality in terms of RS-485 communication with low power consumption and are often used in similar applications. Always verify electrical characteristics and pin compatibility when selecting an equivalent.

Features

The MAX485CSA+ is a low-power transceiver designed for RS-485 and RS-422 communication applications. Key features include:
1. Low Power Consumption: It operates with a low current draw, making it suitable for battery-powered and energy-efficient applications.
2. Wide Operating Voltage Range: The device functions efficiently with supply voltages from 4.75V to 5.25V.
3. High Data Rate: It supports data rates up to 2.5 Mbps, facilitating high-speed data communication.
4. 1/8th Unit Load: This allows for up to 256 transceivers on a single bus, enhancing the flexibility and scalability of network design.
5. Short-Circuit Protection: The MAX485CSA+ offers built-in protection against short circuits, ensuring reliability and robustness in various conditions.
6. -7V to +12V Common Mode Input Voltage Range: This feature provides resilience against potential ground shifts, enhancing the robustness of the communication link.
7. Thermal Shutdown: It includes thermal shutdown protection to prevent damage from overheating.
These features make the MAX485CSA+ an excellent choice for industrial automation, remote meter reading, and other applications requiring reliable serial communication.

Pinout

The MAX485CSA+ is an integrated circuit designed for RS-485 and RS-422 communication applications. It features an 8-pin configuration. The pin functions are as follows:
1. RO (Receive Output): Outputs the received data.
2. RE¯ (Receive Enable): Active low input that enables the receiver when low.
3. DE (Driver Enable): Active high input that enables the driver when high.
4. DI (Driver Input): Inputs data to be transmitted by the driver.
5. GND: Ground reference for the circuit.
6. A (Non-inverting Receiver Input/Driver Output): Works as a driver output or receiver input.
7. B (Inverting Receiver Input/Driver Output): Works as a driver output or receiver input.
8. VCC: Supply voltage for the IC, typically +5V.
The MAX485CSA+ is used for half-duplex communication, allowing data transmission and reception over a single pair of twisted wires. Its low power consumption and ability to operate at high speeds make it suitable for various communication applications.

Manufacturer

The MAX485CSA+ is manufactured by Maxim Integrated, which is a company specializing in the design and production of analog and mixed-signal integrated circuits. Founded in 1983 and headquartered in San Jose, California, Maxim Integrated focuses on providing solutions for power management, interface, communications, and other applications across various industries. The company is known for its expertise in delivering high-performance, highly integrated products that are used in consumer electronics, automotive, communications, industrial, and computing markets. In 2021, Maxim Integrated was acquired by Analog Devices, Inc., a leading semiconductor company, further expanding its capabilities and product offerings in the analog and mixed-signal semiconductor sector.

Application

The MAX485CSA+ is a low-power transceiver designed for RS-485 and RS-422 communication applications. Its key application areas include:
1. Industrial automation and control systems for robust and reliable data transmission over long distances.
2. Building automation systems, providing efficient communication between various components.
3. Point-of-sale systems, ensuring reliable data exchange between devices.
4. Security and surveillance systems, facilitating communication between cameras and central monitoring systems.
5. Networking systems in factories and warehouses, connecting different devices and equipment.
6. Embedded systems and microcontroller-based projects requiring efficient serial communication.
Its low power consumption and ability to drive long communication lines make it suitable for use in battery-powered and remote applications.

Package

The MAX485CSA+ is packaged in an 8-pin Small Outline Integrated Circuit (SOIC) package. This surface-mount package is compact, making it suitable for various applications requiring RS-485/RS-422 communication.

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