SP485ECN-L/TR

Product Overview

• Category: Integrated Circuit
• Use: Communication and Networking
• Characteristics: High-Speed, Low-Power, Half-Duplex RS-485 Transceiver
• Package: SOIC-8
• Essence: Reliable and efficient communication in industrial environments
• 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: RS-485
• Receiver Hysteresis: 50mV
• Driver Output Impedance: 35Ω

Detailed Pin Configuration

1. DE (Driver Enable)
2. RE (Receiver Enable)
3. A (Non-Inverting Data Line)
4. B (Inverting Data Line)
5. GND (Ground)
6. Y (Receiver Output)
7. Z (Driver Output)
8. VCC (Power Supply)

Functional Features

• Half-duplex communication
• Enhanced ESD protection
• Low quiescent current
• Thermal shutdown protection
• Short-circuit and fail-safe receiver inputs

Advantages

• High-speed data transmission
• Wide operating voltage range
• Robust performance in noisy environments
• Low power consumption
• Compact package size

Disadvantages

• Limited to half-duplex communication
• Requires external pull-up and pull-down resistors
• Not suitable for long-distance communication

Working Principles

The SP485ECN-L/TR is a half-duplex RS-485 transceiver that enables reliable communication between multiple devices over long distances. It uses differential signaling to transmit data, providing noise immunity and allowing for robust operation in industrial environments. The driver and receiver sections of the transceiver are controlled by the DE and RE pins, enabling seamless switching between transmission and reception modes.

Detailed Application Field Plans

The SP485ECN-L/TR is widely used in various applications, including:

1. Industrial Automation: PLCs, motor control systems, and sensor networks.
2. Building Automation: HVAC systems, access control, and lighting control.
3. Instrumentation: Data acquisition systems, measurement devices, and test equipment.
4. Communication Systems: Modems, gateways, and industrial Ethernet networks.
5. Automotive Electronics: Vehicle diagnostics, infotainment systems, and CAN bus interfaces.

Detailed and Complete Alternative Models

1. MAX485 - Maxim Integrated
2. SN75176 - Texas Instruments
3. LTC1480 - Linear Technology
4. ADM2483 - Analog Devices
5. ST485 - STMicroelectronics

These alternative models offer similar functionality and can be considered as replacements for the SP485ECN-L/TR in various applications.

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