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MAX815LESA from MAXIM,MAXIM - Dallas Semiconductor

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MAX815LESA

Manufacturer: MAXIM

+-1% accuracy, low-power, microprocessor supervisory circuit. Reset trip threshold (min) 4.65V (max) 4.75V, push-pull active-low reset output, manual reset, power-fail monitor, watchdog circuit.

Partnumber Manufacturer Quantity Availability
MAX815LESA MAXIM 15 In Stock

Description and Introduction

+-1% accuracy, low-power, microprocessor supervisory circuit. Reset trip threshold (min) 4.65V (max) 4.75V, push-pull active-low reset output, manual reset, power-fail monitor, watchdog circuit. The MAX815LESA 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:

### **Specifications:**
- **Manufacturer:** Maxim Integrated (now Analog Devices)  
- **Part Number:** MAX815LESA  
- **Type:** Microprocessor Supervisory Circuit  
- **Package:** 8-pin SOIC (Small Outline Integrated Circuit)  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Accuracy:** ±1.5% (for 5V operation)  
- **Reset Timeout Period:** Adjustable (typically 200ms)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Quiescent Current:** 15μA (typical)  

### **Descriptions:**
The MAX815LESA is a low-power μP supervisory circuit designed to monitor system voltage and provide a reset signal to the microprocessor if the voltage falls below a preset threshold. It ensures reliable system operation by preventing erratic behavior during power-up, power-down, or brownout conditions.  

### **Features:**
- **Precision Voltage Monitoring:** Monitors VCC and asserts reset when voltage drops below threshold.  
- **Manual Reset Input:** Allows external pushbutton reset control.  
- **Low Power Consumption:** Ideal for battery-powered applications.  
- **Adjustable Reset Timeout:** Configurable via external capacitor.  
- **Guaranteed Reset Valid to VCC = 1V:** Ensures proper reset even at low voltages.  
- **No External Components Required:** Simplifies design (basic configuration).  

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

Application Scenarios & Design Considerations

+-1% accuracy, low-power, microprocessor supervisory circuit. Reset trip threshold (min) 4.65V (max) 4.75V, push-pull active-low reset output, manual reset, power-fail monitor, watchdog circuit.
Partnumber Manufacturer Quantity Availability
MAX815LESA MAXIM 28 In Stock

Description and Introduction

+-1% accuracy, low-power, microprocessor supervisory circuit. Reset trip threshold (min) 4.65V (max) 4.75V, push-pull active-low reset output, manual reset, power-fail monitor, watchdog circuit. The MAX815LESA is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated. Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Type:** Microprocessor (μP) Supervisory Circuit  
- **Package:** 8-pin SOIC (Small Outline Integrated Circuit)  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Options:** Adjustable or fixed (factory-set)  
- **Reset Timeout Period:** Typically 200ms (adjustable)  
- **Watchdog Timer:** Yes (programmable)  
- **Manual Reset Input:** Available  
- **Power-Fail Comparator:** Yes (for early warning of power failure)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**
The MAX815LESA is designed to monitor power supply voltages in microprocessor-based systems. It ensures proper system operation by generating a reset signal if the supply voltage drops below a preset threshold. It includes a watchdog timer to detect software lockups and a manual reset input for user-initiated resets.  

### **Features:**
- **Voltage Monitoring:** Monitors VCC for undervoltage conditions.  
- **Adjustable Reset Threshold:** Allows customization for different voltage levels.  
- **Watchdog Timer:** Prevents system lockups by requiring periodic toggling.  
- **Manual Reset Input:** Enables external reset control.  
- **Power-Fail Comparator:** Provides early warning of impending power loss.  
- **Low Quiescent Current:** Minimizes power consumption.  
- **Wide Operating Voltage Range:** Supports 1.2V to 5.5V systems.  

This information is strictly factual and derived from the manufacturer's datasheet.

Application Scenarios & Design Considerations

+-1% accuracy, low-power, microprocessor supervisory circuit. Reset trip threshold (min) 4.65V (max) 4.75V, push-pull active-low reset output, manual reset, power-fail monitor, watchdog circuit.

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