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MAX804RCPA from MAXIM,MAXIM - Dallas Semiconductor

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MAX804RCPA

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 +-2%. Power-fail comparator. Reset window +-2%

Partnumber Manufacturer Quantity Availability
MAX804RCPA 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 +-2%. Power-fail comparator. Reset window +-2% The MAX804RCPA 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:** MAX804RCPA  
- **Package:** 8-pin PDIP (Plastic Dual In-Line Package)  
- **Type:** Voltage Monitor / Supervisor IC  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Options:** Factory-set (e.g., 4.63V, 4.38V, 3.08V, 2.93V, etc., depending on suffix)  
- **Reset Timeout Period:** Adjustable or fixed (typically 140ms min)  
- **Output Type:** Active-Low Reset (RESET)  
- **Operating Temperature Range:** 0°C to +70°C (Commercial grade)  
- **Quiescent Current:** Typically 35μA  

### **Descriptions:**  
The MAX804RCPA monitors system voltage levels and generates a reset signal to the microprocessor if the supply voltage drops below a preset threshold. It ensures proper system operation during power-up, power-down, or brownout conditions.  

### **Features:**  
- **Precision Voltage Monitoring:** Ensures reliable reset generation.  
- **Low Power Consumption:** Ideal for battery-powered applications.  
- **Manual Reset Input:** Allows external pushbutton reset control.  
- **Guaranteed Reset Valid Down to VCC = 1V:** Ensures reset signal integrity.  
- **No External Components Required:** Simplifies circuit design.  
- **ESD Protection:** Up to 2000V (Human Body Model).  

For exact threshold voltage and other variant-specific details, refer to the manufacturer’s datasheet.

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 +-2%. Power-fail comparator. Reset window +-2%

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