Low Power Multipoint TIA/EIA-485 Transceiver The DS36C278N is a dual differential line driver manufactured by National Semiconductor (NS).  

### **Key Specifications:**  
- **Manufacturer:** National Semiconductor (NS)  
- **Type:** Dual Differential Line Driver  
- **Package:** 16-pin DIP (Dual In-line Package)  
- **Operating Voltage:** Typically 5V  
- **Logic Compatibility:** TTL/CMOS  
- **Output Type:** Differential  
- **Data Rate:** High-speed (exact rate depends on application conditions)  
- **Temperature Range:** Industrial-grade (typically -40°C to +85°C)  

### **Applications:**  
- RS-422/RS-485 communication  
- Differential data transmission  
- Industrial networking  

For exact electrical characteristics, refer to the original datasheet from National Semiconductor.