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MAX815NCSA from MAXIM,MAXIM - Dallas Semiconductor

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MAX815NCSA

Manufacturer: MAXIM

+-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
MAX815NCSA MAXIM 71 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 MAX815NCSA is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:  

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Type:** Microprocessor Supervisor  
- **Package:** 8-pin SOIC (NCSA)  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Options:** Adjustable or fixed (e.g., 4.63V, 4.38V, 3.08V, etc.)  
- **Reset Timeout Period:** 140ms (typical)  
- **Watchdog Timer:** Yes (1.6s typical timeout)  
- **Manual Reset Input:** Yes (active-low)  
- **Power-On Reset (POR):** Yes  
- **Operating Temperature Range:** 0°C to +70°C (commercial grade)  
- **Low Quiescent Current:** Typically 50μA  

### **Descriptions:**  
The MAX815NCSA is a supervisory circuit designed to monitor power supply voltages in microprocessor-based systems. It ensures proper system operation by generating a reset signal during power-up, power-down, or brownout conditions. It includes a watchdog timer to detect software crashes and a manual reset input for user-initiated resets.  

### **Features:**  
- **Voltage Monitoring:** Monitors VCC for undervoltage conditions.  
- **Adjustable or Fixed Reset Threshold:** Supports multiple preset or user-defined reset voltage levels.  
- **Watchdog Timer:** Detects system lockups if not toggled within the timeout period.  
- **Manual Reset Capability:** Allows external reset triggering via a pushbutton.  
- **Power-On Reset (POR):** Ensures a valid reset signal during power-up.  
- **Low Power Consumption:** Suitable for battery-powered applications.  
- **Compact Package:** 8-pin SOIC for space-constrained designs.  

This information is based solely on the manufacturer's datasheet and technical documentation. For detailed electrical characteristics and application circuits, refer to the official MAX815 datasheet.

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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