3.3V POWERED, 15KV ESD PROTECTED, TRANSMIT ANT UP TO 12MBPS TRUE RS-485/RS-422 TRANSCEIVER The part **ST3485ECN** is a **3.3V powered ESD-protected 10Mbps half-duplex RS-485/RS-422 transceiver** manufactured by **STMicroelectronics (ST)**.  

### **Key Specifications:**  
- **Supply Voltage:** 3.3V ±10%  
- **Data Rate:** Up to **10Mbps**  
- **Interface Standards:** RS-485 & RS-422 compliant  
- **Operation Mode:** Half-duplex  
- **ESD Protection:**  
  - ±15kV (Human Body Model)  
  - ±8kV (IEC 61000-4-2 Contact Discharge)  
- **Driver Output Current:** ±60mA (short-circuit protected)  
- **Receiver Input Sensitivity:** ±200mV  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SO-8  

### **Features:**  
- **Low Power Consumption:**  
  - Driver disabled: 0.1µA (max)  
  - Receiver disabled: 0.1µA (max)  
- **Fail-Safe Receiver:** Ensures logic-high output when inputs are open or shorted  
- **Thermal Shutdown Protection**  
- **Compatible with 5V Logic Inputs** (despite 3.3V supply)  
- **Industrial-Grade Reliability**  

### **Applications:**  
- Industrial automation  
- Building control systems  
- Point-of-sale (POS) terminals  
- Telecom infrastructure  

This transceiver is designed for robust communication in noisy environments while maintaining low power consumption.

3.3V POWERED, 15KV ESD PROTECTED, TRANSMIT ANT UP TO 12MBPS TRUE RS-485/RS-422 TRANSCEIVER