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ST485ERBDR from ST,ST Microelectronics

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ST485ERBDR

Manufacturer: ST

LOW POWER RS-485/RS422 TRANSCEIVER

Partnumber Manufacturer Quantity Availability
ST485ERBDR ST 5200 In Stock

Description and Introduction

LOW POWER RS-485/RS422 TRANSCEIVER The ST485ERBDR is a low-power transceiver manufactured by STMicroelectronics, designed for RS-485 and RS-422 communication.  

### **Specifications:**  
- **Supply Voltage (VCC):** 3V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Data Rate:** Up to 500kbps  
- **Number of Drivers/Receivers:** 1 Driver, 1 Receiver  
- **ESD Protection:** ±15kV (Human Body Model)  
- **Package:** SO-8  

### **Descriptions:**  
- The ST485ERBDR is a half-duplex transceiver optimized for balanced data transmission.  
- It features low power consumption, making it suitable for battery-powered applications.  
- The device includes thermal shutdown protection and is compatible with TTL and CMOS logic levels.  

### **Features:**  
- Low quiescent current (300µA typical)  
- Driver output short-circuit protection  
- Receiver open-circuit fail-safe  
- Supports up to 32 nodes on a bus  
- Meets or exceeds TIA/EIA-485 standards  

This information is based on the manufacturer's datasheet. For detailed electrical characteristics and application notes, refer to the official STMicroelectronics documentation.

Application Scenarios & Design Considerations

LOW POWER RS-485/RS422 TRANSCEIVER

Alternative Part Number

  • MAX485ESA+T --: Industry-standard RS-485/RS-422 transceiver with the same half-duplex function and SOIC-8 footprint; widely available and pin-compatible in most designs.
  • SN75176BDR --: Classic RS-485 differential bus transceiver in SOIC-8, functionally equivalent to the ST485 with similar data rate and drive capability.
  • SP485ECN-L --: Low-power RS-485 transceiver in SOIC-8 with ESD protection, suitable drop-in replacement for ST485ERBDR in most industrial bus applications.

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