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MAX485CSA

Name: MAX485CSA
Rating: 4.8 (15 reviews)

+物料清單

IC TRANSCEIVER HALF 1/1 8SOIC

製造商類比設備股份有限公司/Maxim集成
製造商部分 #MAX485CSA
有存貨6077

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正品保證

規格

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

概述

Description

The MAX485CSA is a low-power, high-speed transceiver designed for RS-485 and RS-422 communication, suitable for long-distance data transmission in noisy environments. It supports half-duplex communication, allowing for bidirectional data flow over a single twisted pair of wires. The device operates with a supply voltage range of 3.0V to 5.5V, making it versatile for various applications.
Key features include a data rate of up to 2.5 Mbps, low power consumption (typically 120 µA), and robust differential signaling which enhances noise immunity. The integrated fail-safe circuitry ensures reliable operation by maintaining a known state during power-down conditions.
The MAX485CSA is often used in industrial automation, remote sensor networks, and communication between microcontrollers over longer distances. Its compact SOIC package allows for easy integration into circuits while minimizing board space. Overall, the MAX485CSA is an efficient and reliable solution for robust serial communication needs in various electronic applications.

Equivalent

Equivalent products to the MAX485CSA chip include the SN75176, LTC2862, and ADM2485. These chips also support RS-485/RS-422 communication, offering similar specifications for data rates and voltage levels. Additionally, the MAX3485 and SN65HVD3082 can serve as alternatives, depending on specific application requirements. Always verify pin compatibility and electrical characteristics before substituting.

Features

The MAX485CSA is a low-power, high-speed RS-485 differential transceiver designed for communication over long distances. Key features include:
1. Operating Voltage: Supports a wide supply range from +3.0V to +5.5V.
2. Data Rate: Capable of transmitting data at speeds up to 2.5 Mbps.
3. Low Power Consumption: Consumes only 120 µA in low-power mode, making it suitable for battery-operated devices.
4. Driver and Receiver: Contains a driver and a receiver, allowing for full-duplex communication.
5. Temperature Range: Operates over an extended temperature range from -40°C to +85°C.
6. Integrated Termination: Features integrated termination resistors to simplify circuit design.
7. Fail-Safe: Implements fail-safe circuitry that ensures a known state in the absence of a valid input.
8. Bus Contention Protection: Protects against bus contention and ensures reliable communication.
These features make the MAX485CSA ideal for industrial automation, remote sensing, and other applications requiring robust data transmission.

Pinout

The MAX485CSA is a low-power, half-duplex RS-485/RS-422 transceiver with a total of 8 pins. Here’s a concise breakdown of its pin count and functions:
1. 1 (RO) - Receiver Output: Outputs the received data.
2. 2 (RE) - Receiver Enable: Active low; when low, the receiver is enabled.
3. 3 (DE) - Driver Enable: Active high; when high, the driver is enabled to transmit data.
4. 4 (DI) - Driver Input: Input for the data to be transmitted.
5. 5 (GND) - Ground: Common ground connection.
6. 6 (A) - Non-inverting Driver Output: Connects to the non-inverting terminal of the differential line.
7. 7 (B) - Inverting Driver Output: Connects to the inverting terminal of the differential line.
8. 8 (VCC) - Supply Voltage: Power supply input, typically +5V.
The MAX485CSA is commonly used for long-distance data transmission in industrial and commercial applications.

Manufacturer

The MAX485CSA is manufactured by Maxim Integrated, a company known for developing analog and mixed-signal integrated circuits. Maxim Integrated specializes in producing a wide range of semiconductor solutions, including products for data conversion, signal processing, power management, and communications.
Founded in 1983, Maxim Integrated became prominent for its innovative approach to integrated circuit design and has a diverse product portfolio that serves various industries, including automotive, industrial, consumer electronics, and telecommunications. In 2020, Maxim Integrated was acquired by Analog Devices, Inc., further expanding its capabilities and product offerings.
The MAX485 is particularly notable for its role in enabling reliable RS-485 communication, widely used in industrial networking and communication applications.

Application

The MAX485CSA is a low-power, low-voltage transceiver designed for RS-485/RS-422 communication. Its application areas include industrial automation, networking, and data acquisition systems, where long-distance data transmission is required. It is commonly used in building automation systems, motor control, and remote sensor networks. Additionally, it is utilized in automotive applications for communication between electronic control units (ECUs) and in serial communication systems to connect multiple devices over twisted-pair cables. The chip's robust performance makes it suitable for harsh environments and multi-drop communication networks.

Package

The MAX485CSA is housed in a DIP (Dual In-line Package) with 8 pins. This type of package allows for easy insertion into breadboards and sockets for prototyping and circuit design.

Frequently Asked Questions

Q: What is the maximum data rate of the MAX485CSA?
A: The MAX485CSA supports a data rate up to 2.5 Mbps, suitable for high-speed RS-485 communication.

Q: Is the MAX485CSA a half-duplex or full-duplex transceiver?
A: It is a half-duplex transceiver, meaning it can only transmit or receive data at any given time, not both simultaneously.

Q: What is the operating voltage range for this device?
A: The recommended supply voltage is 4.75V to 5.25V, making it compatible with standard 5V logic systems.

Q: What is the typical application for the MAX485CSA in RS-485 networks?
A: It is ideal for industrial control, data acquisition, and building automation systems requiring robust differential signaling over long distances.

Q: How many drivers and receivers are integrated into the MAX485CSA?
A: It integrates 1 driver and 1 receiver, providing a single-channel RS-485/RS-422 interface.

Q: Does the MAX485CSA feature receiver hysteresis for noise immunity?
A: Yes, it includes 70 mV of receiver hysteresis to reduce noise-induced false triggering in harsh environments.

Q: What is the package type and operating temperature range?
A: It comes in an 8-SOIC surface mount package and operates over a 0°C to 70°C commercial temperature range.