規格
| 屬性 | 價值 |
| Package | Tube |
| 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 | 0°C ~ 70°C |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
概述
Description
The MAX487CSA is a low-power transceiver for RS-485 and RS-422 communication systems, commonly used in networking and industrial applications. It is designed by Maxim Integrated for reliable data transmission over long distances and noisy environments. The device operates from a single 5V supply and offers a half-duplex communication interface.
Key features of the MAX487CSA include a low power consumption of 120µA, making it suitable for battery-powered applications. It also provides a wide common-mode voltage range (-7V to +12V) and can drive up to 32 transceivers on the bus, enhancing its suitability for multi-drop networking scenarios. The device operates at data rates up to 250 kbps and includes slew-rate limited drivers to minimize electromagnetic interference.
The MAX487CSA comes with a thermal shutdown feature that protects it from overheating. Its compact size and industry-standard pinout facilitate easy integration into existing designs. Overall, the MAX487CSA is an efficient and robust solution for implementing reliable serial data communication in various industrial and commercial applications.
Key features of the MAX487CSA include a low power consumption of 120µA, making it suitable for battery-powered applications. It also provides a wide common-mode voltage range (-7V to +12V) and can drive up to 32 transceivers on the bus, enhancing its suitability for multi-drop networking scenarios. The device operates at data rates up to 250 kbps and includes slew-rate limited drivers to minimize electromagnetic interference.
The MAX487CSA comes with a thermal shutdown feature that protects it from overheating. Its compact size and industry-standard pinout facilitate easy integration into existing designs. Overall, the MAX487CSA is an efficient and robust solution for implementing reliable serial data communication in various industrial and commercial applications.
Equivalent
The MAX487CSA is a low-power, RS-485/RS-422 transceiver IC. Equivalent products include:
1. Texas Instruments SN75176A
2. Texas Instruments SN65HVD12
3. Texas Instruments SN65HVD485E
4. Analog Devices ADM485
5. STMicroelectronics ST485
6. NXP Semiconductors PCA82C250 (similar functionality)
These alternatives offer similar features, such as low power consumption and compatibility with RS-485/RS-422 communication standards. Always verify pin compatibility and electrical characteristics when substituting.
1. Texas Instruments SN75176A
2. Texas Instruments SN65HVD12
3. Texas Instruments SN65HVD485E
4. Analog Devices ADM485
5. STMicroelectronics ST485
6. NXP Semiconductors PCA82C250 (similar functionality)
These alternatives offer similar features, such as low power consumption and compatibility with RS-485/RS-422 communication standards. Always verify pin compatibility and electrical characteristics when substituting.
Features
The MAX487CSA is a low-power transceiver for RS-485 and RS-422 communication applications. It features a half-duplex communication capability, allowing bidirectional data transmission on the same pair of wires. The device operates over a wide voltage range of 4.75V to 5.25V and features a low quiescent current, making it suitable for battery-powered applications. It supports data rates up to 250 kbps and has enhanced electrostatic discharge (ESD) protection. The MAX487CSA also includes fail-safe receiver inputs, which ensure a predefined output when the bus is idle, open, or shorted. Its short-circuit current limiting and thermal shutdown features protect the device against excessive power conditions. Additionally, the device is pin-compatible with the industry standard, making it easy to integrate into existing designs. It comes in an 8-pin SOIC package, ideal for space-constrained applications.
Pinout
The MAX487CSA is an 8-pin IC designed for RS-485 and RS-422 communication interfaces. Its primary function is to serve as a low-power transceiver for transmitting and receiving differential signals in data communication systems. Here's a brief overview of the pin functions:
1. RO (Receiver Output): Outputs the received data.
2. RE̅ (Receiver Enable): Active low; enables the receiver when low.
3. DE (Driver Enable): Active high; enables the driver when high.
4. DI (Driver Input): Data input for the driver.
5. GND: Ground reference for the circuit.
6. A (Non-inverting Driver Output/Receiver Input): One side of the differential pair.
7. B (Inverting Driver Output/Receiver Input): The complementary side of the differential pair to pin A.
8. VCC: Supply voltage (typically 5V).
The MAX487CSA is optimized for low power use, capable of operating at low speeds up to 250 kbps. It supports half-duplex communication, allowing for bidirectional data flow but not simultaneously in both directions. Its low power consumption makes it ideal for battery-powered applications.
1. RO (Receiver Output): Outputs the received data.
2. RE̅ (Receiver Enable): Active low; enables the receiver when low.
3. DE (Driver Enable): Active high; enables the driver when high.
4. DI (Driver Input): Data input for the driver.
5. GND: Ground reference for the circuit.
6. A (Non-inverting Driver Output/Receiver Input): One side of the differential pair.
7. B (Inverting Driver Output/Receiver Input): The complementary side of the differential pair to pin A.
8. VCC: Supply voltage (typically 5V).
The MAX487CSA is optimized for low power use, capable of operating at low speeds up to 250 kbps. It supports half-duplex communication, allowing for bidirectional data flow but not simultaneously in both directions. Its low power consumption makes it ideal for battery-powered applications.
Manufacturer
The MAX487CSA is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. Maxim Integrated was a company known for designing, manufacturing, and selling analog and mixed-signal integrated circuits. The company focused on producing semiconductors for a wide range of applications, including industrial, automotive, consumer, and communications markets.
In 2021, Analog Devices, a leader in high-performance analog technology, acquired Maxim Integrated to expand its portfolio and strengthen its position in the semiconductor industry. Analog Devices is recognized for its expertise in developing solutions that bridge the physical and digital worlds, offering products and technologies for data conversion, signal processing, and power management.
In 2021, Analog Devices, a leader in high-performance analog technology, acquired Maxim Integrated to expand its portfolio and strengthen its position in the semiconductor industry. Analog Devices is recognized for its expertise in developing solutions that bridge the physical and digital worlds, offering products and technologies for data conversion, signal processing, and power management.
Application
The MAX487CSA is a low-power transceiver designed for RS-485 and RS-422 communication applications. It is commonly used in industrial automation, building automation systems, and process control networks due to its robust performance in noisy environments. Its features make it suitable for applications requiring data transmission over long distances, such as remote sensors, motor controls, and instrumentation networks. Additionally, it's used in networking hardware, security systems, and energy management systems. The device supports multipoint connections, making it ideal for use in complex network topologies where reliable, high-speed data communication is critical. The MAX487CSA's low power consumption and ability to operate at high speeds enhance its usability in battery-powered and energy-efficient applications.
Package
The MAX487CSA is a surface-mount device that comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. It is commonly used in RS-485 and RS-422 communication applications, offering a compact form factor suitable for various electronic designs.