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MAX805RCPA from MAXIM,MAXIM - Dallas Semiconductor

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MAX805RCPA

Manufacturer: MAXIM

3.0V or 3.3V microprocessor supervisory circuit. Reset threshold 2.625V. Active-high reset. Watchdog input. Backup-battery switch. Power-fail threshold accuracy +-4%. Power-fail comparator. Reset window +-75mV

Partnumber Manufacturer Quantity Availability
MAX805RCPA MAXIM 3400 In Stock

Description and Introduction

3.0V or 3.3V microprocessor supervisory circuit. Reset threshold 2.625V. Active-high reset. Watchdog input. Backup-battery switch. Power-fail threshold accuracy +-4%. Power-fail comparator. Reset window +-75mV The MAX805RCPA is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated. Here are its specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX805RCPA  
- **Package:** 8-Pin PDIP (Plastic Dual In-Line Package)  
- **Type:** Microprocessor Reset Circuit  
- **Supply Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Options:** Adjustable or fixed (factory-set)  
- **Reset Timeout Period:** Typically 140ms (min)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Quiescent Current:** Typically 5μA  

### **Descriptions:**
The MAX805RCPA is designed to monitor system voltage levels and provide a reset signal to a microprocessor or microcontroller when the supply voltage drops below a preset threshold. It ensures proper system initialization and prevents erratic operation during power-up, power-down, or brownout conditions.  

### **Features:**
- **Low Power Consumption:** Ultra-low quiescent current (5μA typical) for battery-powered applications.  
- **Manual Reset Input:** Allows for an external push-button reset.  
- **Precision Voltage Monitoring:** Ensures reliable reset operation.  
- **Wide Operating Voltage Range:** Supports 1.2V to 5.5V systems.  
- **Guaranteed Reset Output Valid Down to VCC = 1V:** Ensures proper reset even at very low voltages.  
- **No External Components Required:** Simplifies circuit design.  
- **Industrial Temperature Range:** Operates reliably in harsh environments (-40°C to +85°C).  

This device is commonly used in embedded systems, industrial controls, automotive electronics, and battery-powered devices.

Application Scenarios & Design Considerations

3.0V or 3.3V microprocessor supervisory circuit. Reset threshold 2.625V. Active-high reset. Watchdog input. Backup-battery switch. Power-fail threshold accuracy +-4%. Power-fail comparator. Reset window +-75mV

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