SP485EN

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SP485EN

IC TRANSCEIVER HALF 1/1 8SOP

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  • Mfr.부분 #SP485EN
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  • 데이터시트 SP485EN DataSheet
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사양

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 0°C ~ 70°C (TA)
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOP

개요

Description

SP485EN is a robust, low-power, differential transceiver designed for RS-485 communication, widely used in industrial applications, data acquisition systems, and multi-drop networks. It enables reliable data transmission over long distances in electrically noisy environments. The device features a wide voltage supply range, typically between 3.3V and 5V, making it versatile for various applications.
Key attributes include high-speed data rates, low electromagnetic interference, and the ability to support multiple nodes on a single bus, which enhances network efficiency. SP485EN also incorporates thermal shutdown and short-circuit protection to ensure operational safety and reliability.
With its compact design and ease of integration, SP485EN is an ideal choice for engineers looking to implement reliable serial communication in their projects.

Features

The SP485EN is a half-duplex, low-power RS-485 transceiver designed for robust communication in noisy environments. Key features include:
1. Data Rate: Supports data rates up to 2.5 Mbps, suitable for high-speed applications.
2. Operating Voltage: Wide supply voltage range from 3.0V to 5.5V, allowing for versatile use in various systems.
3. Low Power Consumption: Features low quiescent current, making it suitable for battery-operated devices.
4. Differential Signaling: Ensures improved noise immunity and longer transmission distances (up to 4000 feet).
5. Thermal Shutdown Protection: Built-in protection against excessive temperature conditions.
6. Low Output Short-Circuit Current: Enhances reliability in demanding applications.
7. Wide Temperature Range: Operates effectively in industrial environments (-40°C to +85°C).
8. Fail-Safe Receiver: Maintains a high logic level on the output if the bus is idle or disconnected.
Overall, the SP485EN is ideal for various industrial, automation, and communication applications requiring reliable data transmission.

Package

The SP485EN is available in several package types, including 8-pin PDIP (Plastic Dual In-line Package), SOIC (Small Outline Integrated Circuit), and TSSOP (Thin Shrink Small Outline Package). These options allow for versatility in applications and PCB layout considerations.

Pinout

The SP485EN is a low-power RS-485/RS-422 transceiver with a total of 8 pins. Here’s a concise overview of its pin configuration and functions:
1. A (Pin 1): Non-inverting receiver input.
2. B (Pin 2): Inverting receiver input.
3. RO (Pin 3): Receiver output, provides the received data.
4. RE (Pin 4): Receiver enable, active low; enables the receiver.
5. DE (Pin 5): Driver enable, active high; enables the driver.
6. DI (Pin 6): Driver input, the data to be transmitted.
7. GND (Pin 7): Ground reference for the device.
8. Vcc (Pin 8): Supply voltage, typically +3.3V or +5V.
The SP485EN supports half-duplex communication and is designed for low power consumption, making it suitable for various applications in industrial and communications systems.

Manufacturer

The SP485EN is manufactured by Texas Instruments, a global semiconductor company headquartered in Dallas, Texas. Texas Instruments designs and produces a wide range of analog and embedded processing products. They are well-known for their innovative solutions in various markets, including industrial, automotive, communications, and consumer electronics. The SP485EN itself is a low-power transceiver for RS-485 and RS-422 communication standards, widely used in data communication and networking applications. Texas Instruments has a strong reputation for quality and reliability in the semiconductor industry, providing essential components for various electronic systems.

Application

The SP485EN is a low-power RS-485/RS-422 transceiver used in various applications, including industrial automation, data communication networks, and multi-point systems. It's commonly employed in field buses, remote sensor networks, and serial communication in environments requiring long-distance data transmission and high noise immunity. Its robustness makes it suitable for use in automotive, HVAC, and security systems as well.

Equivalent

The SP485EN is a low-power RS-485/RS-422 transceiver. Equivalent products include:
1. MAX3485
2. SN75176
3. LTC2862
4. ADM2483
5. DS26C31
Always verify compatibility with your specific application requirements, such as voltage levels, speed, and power consumption.

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