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CAT809 from CATALYST

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CAT809

Manufacturer: CATALYST

Low Cost Microcontroller Power Supply Supervisors, Active Low

Partnumber Manufacturer Quantity Availability
CAT809 CATALYST 170000 In Stock

Description and Introduction

Low Cost Microcontroller Power Supply Supervisors, Active Low The CAT809 is a voltage supervisor IC manufactured by CATALYST SEMICONDUCTOR (now part of ON Semiconductor). Here are its key specifications:  

- **Function**: Monitors system voltage and provides a reset signal to the microprocessor when the voltage falls below a preset threshold.  
- **Voltage Threshold Options**: Available in fixed threshold variants (e.g., 2.63V, 3.08V, 4.38V, etc.).  
- **Output Type**: Active-low reset output (open-drain or push-pull, depending on variant).  
- **Operating Voltage Range**: Typically 1V to 5.5V.  
- **Reset Timeout Period**: Fixed delay (typically 200ms) after voltage rises above threshold.  
- **Package Options**: SOT-23, SC-70, and TO-92.  
- **Applications**: Microprocessor/microcontroller reset circuits, power supply monitoring.  

For exact threshold values and package details, refer to the datasheet.

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