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MAX815NCPA from MAX,MAXIM - Dallas Semiconductor

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MAX815NCPA

Manufacturer: MAX

+-1% accuracy, low-power, microprocessor supervisory circuit. Reset trip threshold (min) 4.50V (max) 4.60V, push-pull active-low reset output, manual reset, power-fail monitor, watchdog circuit.

Partnumber Manufacturer Quantity Availability
MAX815NCPA MAX 23 In Stock

Description and Introduction

+-1% accuracy, low-power, microprocessor supervisory circuit. Reset trip threshold (min) 4.50V (max) 4.60V, push-pull active-low reset output, manual reset, power-fail monitor, watchdog circuit. The MAX815NCPA is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX815NCPA  
- **Type:** Microprocessor Supervisory Circuit  
- **Package:** 8-Pin PDIP (Plastic Dual In-Line Package)  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Accuracy:** ±1.5% (for 5V operation)  
- **Reset Timeout Period:** Adjustable or fixed (depends on variant)  
- **Operating Temperature Range:** 0°C to +70°C  
- **Manual Reset Input:** Yes (active-low)  
- **Power-On Reset (POR):** Yes  
- **Watchdog Timer:** Yes (programmable timeout)  
- **Supply Current (Typical):** 35μA  

### **Descriptions:**
The MAX815NCPA is designed to monitor power supply voltages in microprocessor-based systems. It ensures proper system operation by generating a reset signal when the supply voltage falls below a preset threshold. It includes a watchdog timer to detect software lockups and a manual reset input for user-initiated resets.

### **Features:**
1. **Voltage Monitoring:** Monitors VCC for undervoltage conditions.  
2. **Reset Output:** Active-low reset signal for μP initialization.  
3. **Watchdog Timer:** Detects software failures with programmable timeout.  
4. **Manual Reset Input:** Allows external reset triggering.  
5. **Low Power Consumption:** Typically 35μA supply current.  
6. **Precision Threshold:** ±1.5% accuracy for reliable monitoring.  
7. **Wide Operating Voltage Range:** Supports 1.2V to 5.5V systems.  
8. **Power-On Reset (POR):** Ensures proper startup after power-up.  

This information is based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

+-1% accuracy, low-power, microprocessor supervisory circuit. Reset trip threshold (min) 4.50V (max) 4.60V, push-pull active-low reset output, manual reset, power-fail monitor, watchdog circuit.

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