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MAX3221 from MAX,MAXIM - Dallas Semiconductor

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MAX3221

Manufacturer: MAX

1µA Supply Current, True +3V to +5.5V RS-232 Transceivers with AutoShutdown™

Partnumber Manufacturer Quantity Availability
MAX3221 MAX 30 In Stock

Description and Introduction

1µA Supply Current, True +3V to +5.5V RS-232 Transceivers with AutoShutdown™ The MAX3221 is a 1-driver/1-receiver RS-232 transceiver manufactured by Maxim Integrated (now part of Analog Devices).  

### **Specifications:**  
- **Supply Voltage:** 3.0V to 5.5V  
- **Data Rate:** Up to 250kbps  
- **ESD Protection:** ±15kV (Human Body Model)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Low Power Consumption:**  
  - 1µA shutdown current  
  - 300µA active supply current  
- **Package Options:** SOIC, TSSOP, µMAX  

### **Description:**  
The MAX3221 is a low-power, single-channel RS-232 transceiver designed for battery-powered applications. It includes a charge-pump voltage converter to generate RS-232-compatible voltage levels from a single 3V to 5.5V supply.  

### **Features:**  
- **Auto-Shutdown Plus™:** Automatically enters low-power mode when no valid RS-232 signal is detected.  
- **Integrated Capacitors:** Requires only four external 0.1µF capacitors for operation.  
- **Compliant with EIA/TIA-232 and V.28/V.24 standards.**  
- **Interoperable with 3V/5V logic.**  
- **Receiver Hysteresis:** Improves noise immunity.  

The MAX3221 is commonly used in portable devices, industrial equipment, and embedded systems requiring reliable RS-232 communication.

Partnumber Manufacturer Quantity Availability
MAX3221 MAXIM 52 In Stock

Description and Introduction

1µA Supply Current, True +3V to +5.5V RS-232 Transceivers with AutoShutdown™ The MAX3221 is a 1-driver/1-receiver RS-232 transceiver manufactured by Maxim Integrated.  

### **Specifications:**  
- **Supply Voltage (VCC):** 3.0V to 5.5V  
- **Data Rate:** Up to 250kbps  
- **ESD Protection:** ±15kV (Human Body Model)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Low Power Consumption:** 1µA shutdown current  
- **Package Options:** SOIC, TSSOP, µMAX  

### **Descriptions:**  
- The MAX3221 is a single-channel RS-232 transceiver designed for battery-powered applications.  
- It integrates a charge pump to generate RS-232 voltage levels from a single 3V to 5.5V supply.  
- Features auto-shutdown and wake-up to minimize power consumption.  

### **Features:**  
- **Single-Channel RS-232 Transceiver**  
- **On-Board Charge Pump** (No external capacitors required)  
- **Auto-Shutdown Mode** (Reduces power when not in use)  
- **Enhanced ESD Protection** (±15kV on I/O lines)  
- **Compatible with 3V/5V Logic**  
- **Pin-Compatible with MAX3222 (Dual-Channel Version)**  

For detailed datasheets, refer to Maxim Integrated's official documentation.

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