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MAX488EESA-T
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MAX488EESA-T

Introduction

The MAX488EESA-T is a high-speed, slew-rate-limited RS-485/RS-422 transceiver designed for half-duplex communication. This device is commonly used in industrial and automotive applications due to its robustness and reliability.

Basic Information Overview

  • Category: RS-485/RS-422 Transceiver
  • Use: Half-duplex communication in industrial and automotive applications
  • Characteristics: High-speed, slew-rate-limited, robust
  • Package: 8-pin SOIC (Small Outline Integrated Circuit)
  • Essence: Facilitates reliable data transmission in noisy environments
  • Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

  • Supply Voltage: 4.75V to 5.25V
  • Data Rate: 250kbps
  • Operating Temperature Range: -40°C to +85°C
  • Driver Output Resistance: 13Ω
  • Receiver Input Resistance: 12kΩ

Detailed Pin Configuration

  1. A (Driver Output A)
  2. B (Driver Output B)
  3. B (Receiver Input B)
  4. A (Receiver Input A)
  5. GND (Ground)
  6. RO (Receiver Output)
  7. RE (Receiver Output Enable)
  8. VCC (Supply Voltage)

Functional Features

  • Slew-Rate Limited Driver for Reduced EMI
  • Short-Circuit Protection
  • Thermal Shutdown
  • Receiver Fail-Safe Feature

Advantages and Disadvantages

Advantages - Robustness in Noisy Environments - Thermal Shutdown for Overtemperature Protection - Receiver Fail-Safe Feature Ensures a Valid Logic State on the Receiver Output - Short-Circuit Protection Enhances Reliability

Disadvantages - Limited Data Rate of 250kbps - Requires External Components for Operation

Working Principles

The MAX488EESA-T operates by transmitting and receiving differential signals over twisted-pair cables. The slew-rate-limited driver reduces electromagnetic interference (EMI) while the receiver fail-safe feature ensures a valid logic state on the output even when the inputs are open, shorted, or idle.

Detailed Application Field Plans

This transceiver is well-suited for various industrial and automotive applications, including: - Industrial Automation Systems - Automotive Diagnostic Equipment - Building Automation Systems - HVAC Control Systems - Motor Control Systems

Detailed and Complete Alternative Models

  1. SN65HVD72DGGR
  2. LTC2857CMS8
  3. ADM2483BRWZ

In conclusion, the MAX488EESA-T is a reliable and robust RS-485/RS-422 transceiver suitable for half-duplex communication in industrial and automotive environments. Its slew-rate-limited design, short-circuit protection, and thermal shutdown features make it an ideal choice for applications requiring dependable data transmission in challenging conditions.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av MAX488EESA-T i tekniska lösningar

  1. What is the MAX488EESA-T?

    • The MAX488EESA-T is a low-power, slew-rate-limited transceiver for RS-485 and RS-422 communication.

  2. What is the operating voltage range of MAX488EESA-T?

    • The operating voltage range of MAX488EESA-T is +5V to +12V.

  3. What is the maximum data rate supported by MAX488EESA-T?

    • MAX488EESA-T supports data rates up to 250kbps.

  4. What are the typical applications of MAX488EESA-T?

    • Typical applications include industrial control systems, building automation, HVAC systems, and point-of-sale terminals.

  5. Does MAX488EESA-T have built-in protection features?

    • Yes, MAX488EESA-T has built-in thermal shutdown and short-circuit protection.

  6. What is the quiescent current consumption of MAX488EESA-T?

    • The quiescent current consumption is typically 120µA.

  7. Is MAX488EESA-T compatible with standard RS-485 and RS-422 protocols?

    • Yes, MAX488EESA-T is fully compatible with both RS-485 and RS-422 protocols.

  8. Can MAX488EESA-T be used in half-duplex and full-duplex communication?

    • Yes, MAX488EESA-T can be used in both half-duplex and full-duplex communication modes.

  9. What is the temperature range for operation of MAX488EESA-T?

    • MAX488EESA-T can operate within a temperature range of -40°C to +85°C.

  10. Are there any evaluation kits available for MAX488EESA-T?

    • Yes, evaluation kits are available to facilitate testing and prototyping with MAX488EESA-T.