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ST485C from ST,ST Microelectronics

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ST485C

Manufacturer: ST, ST8

LOW POWER RS-485/RS-422 TRANSCEIVER

Partnumber Manufacturer Quantity Availability
ST485C ST, ST8 1554 In Stock

Description and Introduction

LOW POWER RS-485/RS-422 TRANSCEIVER The ST485C is a low-power transceiver manufactured by STMicroelectronics (ST). It is designed for RS-485 and RS-422 communication applications.  

### **Specifications:**  
- **Supply Voltage:** 5V ±10%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Data Rate:** Up to 2.5 Mbps  
- **Low Power Consumption:**  
  - Quiescent Current: 300 µA (typical)  
  - Shutdown Current: 0.1 µA (typical)  
- **ESD Protection:** ±15 kV (Human Body Model)  
- **Number of Drivers/Receivers:** 1 Driver, 1 Receiver  
- **Half-Duplex Communication**  

### **Descriptions:**  
The ST485C is a robust transceiver suitable for industrial and commercial applications requiring reliable differential data transmission. It features fail-safe circuitry to ensure a high receiver output state when inputs are open or shorted.  

### **Features:**  
- **Enhanced ESD Protection** for improved reliability  
- **Wide Common-Mode Voltage Range:** ±7V  
- **Thermal Shutdown Protection**  
- **Driver Short-Circuit Current Limiting**  
- **Compatible with TIA/EIA-485-A and TIA/EIA-422-B Standards**  
- **Available in SO-8 and DIP-8 Packages**  

This device is commonly used in industrial control systems, building automation, and point-of-sale equipment.

Application Scenarios & Design Considerations

LOW POWER RS-485/RS-422 TRANSCEIVER

Alternative Part Number

  • MAX485CPA+ --: Industry-standard pin-compatible RS-485 transceiver with the same 8-pin DIP footprint and equivalent driver/receiver functionality.
  • SN75176BP --: Widely used pin-compatible RS-485 differential bus transceiver, direct drop-in replacement for most ST485C applications.
  • DS485N --: Low-power RS-485/RS-422 transceiver with matching pinout and comparable electrical characteristics for drop-in substitution.
  • MAX485CPA --: Industry-standard RS-485 transceiver, pin-compatible with ST485C and widely available as a direct functional replacement.

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