±15KV ESD PROTECTED 3 TO 5.5V, 400KBPS, RS-232 TRANSCEIVER WITH AUTO-POWERDOWN The part **ST3243EBJ** is a **3.3V-powered EIA/TIA-232 and EIA/TIA-562 transceiver** manufactured by **STMicroelectronics (ST)**.  

### **Key Specifications:**  
- **Supply Voltage:** 3.3V  
- **Compliance:** EIA/TIA-232 and EIA/TIA-562 standards  
- **Data Rate:** Up to **1Mbps**  
- **Number of Drivers/Receivers:** **3 drivers, 5 receivers**  
- **Operating Temperature Range:** **-40°C to +85°C**  
- **Package:** **SO-28**  

### **Features:**  
- **Low power consumption**  
- **Enhanced ESD protection** (±15kV HBM)  
- **Auto-powerdown feature** for power saving  
- **Wide receiver input voltage range** (up to ±25V)  
- **Compatible with 5V logic inputs**  

This transceiver is commonly used in **industrial, telecom, and computing applications** for serial communication interfaces.  

Would you like additional details on pin configuration or application notes?

±15KV ESD PROTECTED 3 TO 5.5V, 400KBPS, RS-232 TRANSCEIVER WITH AUTO-POWERDOWN