3.0V or 3.3V microprocessor supervisory circuit. Reset threshold 3.075V. Active-low reset. Watchdog input. Backup-battery switch. Power-fail threshold accuracy +-2%. Power-fail comparator. Reset window +-2% The MAX802TESA is a microprocessor (µP) supervisory circuit manufactured by Maxim Integrated.  

### **Specifications:**  
- **Supply Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Options:** 2.32V, 2.93V, 3.08V, 4.38V, 4.63V (factory-set)  
- **Reset Timeout Period:** 140ms (min)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin SOIC (MAX802TESA)  
- **Low Quiescent Current:** 5µA (typ)  
- **Manual Reset Input:** Active-low (MR)  
- **Power-On Reset (POR) Circuitry:** Ensures valid reset at power-up  

### **Descriptions:**  
The MAX802TESA monitors µP and digital system power supplies, generating a reset signal when the voltage drops below a preset threshold. It ensures proper system operation during power-up, power-down, and brownout conditions.  

### **Features:**  
- **Precision Voltage Monitoring:** Factory-trimmed threshold options  
- **Low Power Consumption:** Ideal for battery-powered applications  
- **Guaranteed Reset Assertion Down to VCC = 1V**  
- **No External Components Required**  
- **Push-Button Reset Capability (via MR pin)**  
- **Space-Saving 8-Pin SOIC Package**  

This device is commonly used in embedded systems, industrial controls, and portable electronics to ensure reliable µP operation.

3.0V or 3.3V microprocessor supervisory circuit. Reset threshold 3.075V. Active-low reset. Watchdog input. Backup-battery switch. Power-fail threshold accuracy +-2%. Power-fail comparator. Reset window +-2%