±15kV ESD-Protected, 1µA, 3.0V to 5.5V, 250kbps, RS-232 Transceivers with AutoShutdown The **MAX3221ECUE+** is a **RS-232 transceiver** manufactured by **Maxim Integrated** (now part of Analog Devices).  

### **Key Specifications:**  
- **Supply Voltage:** 3.0V to 5.5V  
- **Data Rate:** Up to **250kbps**  
- **Number of Drivers/Receivers:** **1 Driver, 1 Receiver**  
- **Operating Temperature Range:** **-40°C to +85°C**  
- **Package:** **TSSOP-16**  
- **ESD Protection:** **±15kV (Human Body Model)**  
- **Low Power Consumption:** **1µA (Shutdown Mode)**  
- **Compliance:** Meets **EIA/TIA-232-F** standards  

### **Description:**  
The MAX3221ECUE+ is a **3V to 5.5V-powered RS-232 transceiver** designed for **battery-powered and low-power applications**. It integrates a **charge-pump voltage doubler/inverter** to generate RS-232 voltage levels from a single supply.  

### **Features:**  
- **Auto-Shutdown/Enable** for power savings  
- **Onboard DC-DC Converters** for RS-232 compliance  
- **Enhanced ESD Protection** (±15kV HBM)  
- **Operates with 3V to 5.5V Logic**  
- **Small Footprint (TSSOP-16)**  

This device is commonly used in **portable devices, industrial equipment, and embedded systems** requiring reliable RS-232 communication.  

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