SP485EN-L/TR

Product Overview

• Category: Integrated Circuit
• Use: Communication and Data Transmission
• Characteristics: High-Speed, Low-Power, Half-Duplex RS-485 Transceiver
• Package: SOP-8 (Small Outline Package)
• Essence: Reliable and Efficient Communication Interface
• Packaging/Quantity: Tape and Reel / 2500 units per reel

Specifications

• Supply Voltage: 3.0V to 5.5V
• Data Rate: Up to 20 Mbps
• Operating Temperature Range: -40°C to +85°C
• Number of Pins: 8
• Interface Type: RS-485
• Receiver Hysteresis: 50mV
• Driver Output Current: ±60mA
• Shutdown Current: 1µA (Max)

Detailed Pin Configuration

The SP485EN-L/TR has the following pin configuration:

1. RO - Receiver Output
2. RE - Receiver Enable
3. DE - Driver Enable
4. DI - Driver Input
5. GND - Ground
6. A - Non-Inverting Differential Line Input/Output
7. B - Inverting Differential Line Input/Output
8. VCC - Supply Voltage

Functional Features

• Supports Half-Duplex Communication
• Allows Multiple Transceivers on a Single Bus
• Provides Thermal Shutdown Protection
• Features Low Power Consumption
• Offers Enhanced ESD Protection
• Supports Extended Common Mode Range

Advantages and Disadvantages

Advantages

• High-speed data transmission up to 20 Mbps
• Wide operating temperature range (-40°C to +85°C)
• Low power consumption for energy-efficient applications
• Robust protection against electrostatic discharge (ESD)
• Flexible half-duplex communication for multi-node systems

Disadvantages

• Limited to half-duplex communication only
• Requires external components for proper operation
• Not suitable for applications requiring full-duplex communication

Working Principles

The SP485EN-L/TR is a half-duplex RS-485 transceiver that enables reliable and efficient communication between multiple devices. It uses differential signaling to transmit data over long distances while minimizing noise interference. The driver and receiver sections of the transceiver are controlled by the DE (Driver Enable) and RE (Receiver Enable) pins, respectively. When transmitting data, the DI (Driver Input) pin receives the digital signal, which is then converted into a differential voltage output on the A and B pins. On the receiving end, the RO (Receiver Output) pin provides the received data as a digital signal.

Detailed Application Field Plans

The SP485EN-L/TR is widely used in various applications that require robust and high-speed communication, such as:

1. Industrial Automation Systems
2. Building Automation Systems
3. HVAC Control Systems
4. Security and Surveillance Systems
5. Access Control Systems
6. Smart Grids and Energy Management Systems
7. Automotive Electronics
8. Medical Equipment
9. Robotics and Control Systems
10. Communication Networks

Detailed and Complete Alternative Models

1. MAX485 - Maxim Integrated
2. SN75176 - Texas Instruments
3. LTC485 - Linear Technology
4. ST485 - STMicroelectronics
5. ADM485 - Analog Devices
6. ISL8485 - Renesas Electronics
7. MC3486 - ON Semiconductor
8. HIN232 - Intersil

These alternative models offer similar functionality and can be considered as substitutes for the SP485EN-L/TR in various applications.

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