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MAX809 from ON,ON Semiconductor

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MAX809

Manufacturer: ON

3-Pin Microprocessor Reset Circuits

Partnumber Manufacturer Quantity Availability
MAX809 ON 653 In Stock

Description and Introduction

3-Pin Microprocessor Reset Circuits The MAX809 is a microprocessor (μP) supervisory circuit manufactured by ON Semiconductor. It monitors the power supply voltage of μP and digital systems, providing a reset signal during power-up, power-down, and brownout conditions.  

### **Specifications:**  
- **Reset Threshold Options:** Available in various fixed voltage thresholds (e.g., 2.63V, 3.08V, 4.38V, etc.).  
- **Reset Timeout Period:** Typically 140 ms (fixed).  
- **Operating Voltage Range:** 1.2V to 5.5V.  
- **Low Quiescent Current:** Typically 8 μA.  
- **Output Type:** Active-low RESET (open-drain or push-pull).  
- **Temperature Range:** -40°C to +85°C (industrial).  

### **Descriptions & Features:**  
- **Power Supply Monitoring:** Ensures proper system reset during voltage irregularities.  
- **Manual Reset Input:** Allows external reset control (available in some variants).  
- **Small Package Options:** SOT23, SC70, and TO-92.  
- **Glitch Immunity:** Filters out short voltage transients.  
- **No External Components Required:** Simplifies circuit design.  
- **Hysteresis:** Prevents reset signal oscillation near threshold.  

For exact part numbers and detailed specifications, refer to ON Semiconductor's datasheet.

Application Scenarios & Design Considerations

3-Pin Microprocessor Reset Circuits

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