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ST485EXDR from ST,ST Microelectronics

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ST485EXDR

Manufacturer: ST

LOW POWER RS-485/RS422 TRANSCEIVER

Partnumber Manufacturer Quantity Availability
ST485EXDR ST 6000 In Stock

Description and Introduction

LOW POWER RS-485/RS422 TRANSCEIVER The ST485EXDR is a low-power transceiver manufactured by STMicroelectronics, designed for RS-485 and RS-422 communication.  

### **Specifications:**  
- **Supply Voltage (VCC):** 4.5V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Data Rate:** Up to 10 Mbps  
- **Number of Drivers/Receivers:** 1 Driver, 1 Receiver  
- **Half-Duplex Communication**  
- **ESD Protection:** ±15kV (Human Body Model)  
- **Low Power Consumption:**  
  - **Supply Current (Driver Enabled):** 1.5mA (Max)  
  - **Supply Current (Shutdown Mode):** 1µA (Max)  

### **Descriptions and Features:**  
- **RS-485/RS-422 Compliance:** Meets industry standards for robust differential communication.  
- **Fail-Safe Receiver:** Ensures logic-high output when inputs are open or shorted.  
- **Thermal Shutdown Protection:** Prevents damage from excessive power dissipation.  
- **Driver Output Short-Circuit Protection:** Enhances reliability in fault conditions.  
- **Wide Common-Mode Voltage Range:** ±12V for noise immunity in industrial environments.  
- **SO-8 Package:** Compact and suitable for space-constrained applications.  

The ST485EXDR is commonly used in industrial control, automation, and long-distance communication systems.

Application Scenarios & Design Considerations

LOW POWER RS-485/RS422 TRANSCEIVER

Alternative Part Number

  • MAX485ESA+ --: Industry-standard RS-485/RS-422 transceiver in 8-pin SOIC, pin-compatible with ST485EXDR and widely available as a direct functional replacement.
  • SN75176BDR --: Classic RS-485 differential bus transceiver in SOIC-8 with the same pinout and function, well suited as a drop-in alternative.
  • SP485ECN-L --: RS-485 transceiver in SOIC-8 with equivalent pinout and electrical characteristics, offering a cost-effective second-source option.

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