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SP3493EN from SIPEX

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SP3493EN

Manufacturer: SIPEX

3.3V Low Power Slew Rate Limited RS-485/RS-422 Transceivers

Partnumber Manufacturer Quantity Availability
SP3493EN SIPEX 140 In Stock

Description and Introduction

3.3V Low Power Slew Rate Limited RS-485/RS-422 Transceivers The part SP3493EN is a 3.3V powered RS-485/RS-422 transceiver manufactured by SIPEX (now part of Exar Corporation).  

### **Specifications:**  
- **Supply Voltage:** 3.3V ±10%  
- **Data Rate:** Up to 10Mbps  
- **Operating Temperature Range:** -40°C to +85°C  
- **Number of Drivers/Receivers:** 1 Driver, 1 Receiver  
- **ESD Protection:** ±15kV (Human Body Model)  
- **Package:** 8-pin SOIC  

### **Descriptions:**  
- The SP3493EN is a low-power, half-duplex transceiver designed for RS-485 and RS-422 communication.  
- It features a slew-rate-limited driver for reduced EMI and reflections in unterminated networks.  
- The device supports fail-safe biasing for open, shorted, and terminated line conditions.  

### **Features:**  
- **Low Power Consumption:** Typically 300µA in shutdown mode.  
- **Enhanced ESD Protection:** Protects against electrostatic discharge up to ±15kV.  
- **Slew Rate Limited:** Reduces EMI and signal distortion.  
- **1/8 Unit Load:** Allows up to 256 devices on the bus.  
- **Thermal Shutdown Protection:** Prevents damage from excessive power dissipation.  
- **Compatible with 3.3V Microcontrollers:** Direct interface without level shifting.  

This information is based solely on the specifications and features provided by the manufacturer.

Application Scenarios & Design Considerations

3.3V Low Power Slew Rate Limited RS-485/RS-422 Transceivers

Alternative Part Number

  • MAX3493ESD --: Pin-compatible 3.3V RS-485/RS-422 transceiver with the same function and similar electrical characteristics; widely available and a direct functional drop-in.
  • SN65HVD3082ED --: 3.3V low-power RS-485 transceiver with comparable data rate and pinout, commonly used as a replacement for SP3493-class devices.
  • ISL8483EIBZ --: 3.3V RS-485/RS-422 transceiver offering equivalent functionality and similar package options, suitable as an alternative when the original is unavailable.
  • MAX3490ESA --: Pin-compatible 3.3V RS-485/RS-422 transceiver with the same full-duplex function and SOIC-8 footprint, widely available and a common drop-in replacement.
  • ISL8485EIBZ --: 3.3V RS-485/RS-422 transceiver in SOIC-8 offering comparable electrical characteristics and a different series naming for easy distinction.

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