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MAX804SCPA from MAXIM,MAXIM - Dallas Semiconductor

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MAX804SCPA

Manufacturer: MAXIM

3.0V or 3.3V microprocessor supervisory circuit. Reset threshold 2.925V. Active-high reset. Watchdog input. Backup-battery switch. Power-fail threshold accuracy +-2%. Power-fail comparator. Reset window +-2%

Partnumber Manufacturer Quantity Availability
MAX804SCPA MAXIM 3400 In Stock

Description and Introduction

3.0V or 3.3V microprocessor supervisory circuit. Reset threshold 2.925V. Active-high reset. Watchdog input. Backup-battery switch. Power-fail threshold accuracy +-2%. Power-fail comparator. Reset window +-2% The MAX804SCPA is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated. Below are its specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX804SCPA  
- **Type:** Microprocessor (μP) Supervisory Circuit  
- **Package:** 8-Pin PDIP (Plastic Dual In-Line Package)  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Options:** 2.63V, 2.93V, 3.08V, 4.38V, 4.63V (selectable)  
- **Reset Timeout Period:** 140ms (min), 280ms (typ)  
- **Operating Temperature Range:** 0°C to +70°C  
- **Quiescent Current:** 5μA (typ)  

### **Descriptions:**
The MAX804SCPA is a low-power microprocessor voltage monitor designed to ensure proper system operation during power-up, power-down, and brownout conditions. It provides a reset signal to the μP when the supply voltage falls below a preset threshold, ensuring the system remains in a known state.  

### **Features:**
- **Precision Voltage Monitoring:** Ensures reliable reset operation.  
- **Low Power Consumption:** 5μA typical supply current.  
- **Manual Reset Input:** Allows external pushbutton reset control.  
- **Guaranteed Reset Output Valid Down to VCC = 1V:** Ensures reset assertion even at very low voltages.  
- **No External Components Required:** Simplifies circuit design.  
- **Space-Saving 8-Pin Package:** Available in PDIP and SOIC options.  

The MAX804SCPA is commonly used in embedded systems, industrial controls, and battery-powered applications where reliable power monitoring is critical.

Application Scenarios & Design Considerations

3.0V or 3.3V microprocessor supervisory circuit. Reset threshold 2.925V. Active-high reset. Watchdog input. Backup-battery switch. Power-fail threshold accuracy +-2%. Power-fail comparator. Reset window +-2%

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