ST485BDR

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ST485BDR

+БОМ

IC TRANSCEIVER HALF 1/1 8SO

  • ПроизводительSTМикроэлектроника

  • Мфр. Часть #ST485BDR

  • Лист данных ST485BDR DataSheet

  • Пакет SO-8

  • В наличии3761

365 Дни гарантии качества

7*24 часы обслуживания каранти

90-гарантия послепродажного дня

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Спецификации

Атрибут Ценность
Package / Case Tape & Reel (TR),Cut Tape (CT)
Part Status Active
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 -40°C ~ 85°C
Mounting Type Surface Mount

Обзор

Description

ST485BDR refers to a specific type of RS-485 transceiver, typically used in communication systems. RS-485 is a standard for serial communication that enables robust data transmission over long distances and in electrically noisy environments. The ST485BDR is a half-duplex transceiver, meaning it can either transmit or receive data, but not simultaneously, and is commonly used in industrial and commercial applications.
Key features of the ST485BDR may include low power consumption, high speed, and fail-safe mechanisms to ensure reliable communication. It typically operates at up to 5 Mbps, making it suitable for various applications, including networking equipment, industrial automation, and telecommunications.
The device usually includes protection against electrical surges and electromagnetic interference, which enhances its durability in harsh environments. It often comes in a small package, making it convenient for use in compact electronic systems.
Overall, the ST485BDR is valued for its efficiency and reliability in facilitating serial communication over extended distances.

Equivalent

The ST485BDR is a low-power RS-485 transceiver. Equivalent products include the MAX485 from Maxim Integrated, SN75176 from Texas Instruments, ADM485 from Analog Devices, and SP485 from Sipex (now part of MaxLinear). These alternatives offer similar functionalities, supporting RS-485 communication with low power consumption and differential signaling. Always check the datasheets for specific parameter matching.

Features

The ST485BDR is a half-duplex RS-485 transceiver that is commonly used in communication networks. It features a high-speed operation with a data rate of up to 2.5 Mbps, which makes it suitable for fast transmission requirements. The device operates with a supply voltage range of 4.75V to 5.25V, making it compatible with standard 5V systems.
This transceiver is designed to handle harsh environments, offering a wide common-mode range and a robust ESD protection of up to ±15 kV. It typically consumes low power, featuring a low quiescent current to ensure efficiency in power-sensitive applications. The ST485BDR also has a fail-safe feature that ensures the receiver outputs are stable when the bus is idle, open, or shorted.
Its compact and surface-mountable package design makes it easy to integrate into various PCBs, saving space and reducing assembly time. The device is widely used in industrial automation, building automation, and other applications requiring reliable serial communication over long distances.

Pinout

The ST485BDR is an RS-485 transceiver integrated circuit designed for balanced data transmission. It features an 8-pin configuration with the following pin functions:
1. RO (Receiver Output): Provides the received data output.
2. RE̅ (Receiver Output Enable): Active-low pin that enables or disables the receiver output.
3. DE (Driver Output Enable): Controls the driver outputs. When high, the driver is enabled; when low, the driver is disabled.
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 of the differential signal lines.
7. B (Inverting Driver Output/Receiver Input): The other differential signal line.
8. VCC: Positive supply voltage for the transceiver.
The ST485BDR is optimized for low-power, high-speed communication over long distances and is widely used in industrial and commercial applications.

Manufacturer

The ST485BDR is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a broad range of semiconductor products. The company serves various applications including automotive, industrial, personal electronics, computer, and communication equipment. STMicroelectronics is known for its innovations in microcontrollers, sensors, power and analog devices, and other semiconductor solutions.

Application

The ST485BDR is a low-power transceiver for RS-485 communication, commonly used in industrial and commercial applications. Its application areas include:
1. Industrial Automation: Facilitates robust communication between PLCs, sensors, and actuators.
2. Building Automation: Used in HVAC control and energy management systems for efficient data transmission.
3. Telecommunications: Supports data communication between network devices in telecom infrastructure.
4. Security Systems: Enables reliable data transfer in surveillance and alarm systems.
5. Embedded Systems: Integrates with microcontrollers for efficient serial communication in various devices.
6. Smart Grids: Utilized in energy distribution systems for monitoring and control.
These applications leverage the ST485BDR's capabilities for high-speed, noise-resistant communication.

Package

The ST485BDR is a transceiver IC housed in an SO-8 (Small Outline) package type. This package is compact with eight pins, suitable for surface-mount technology (SMT) applications, commonly used in electronic circuit designs for its ability to save space on printed circuit boards (PCBs).

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