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MAX805TCPA from MAXIM,MAXIM - Dallas Semiconductor

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MAX805TCPA

Manufacturer: MAXIM

3.0V or 3.3V microprocessor supervisory circuit. Reset threshold 3.075V. Active-high reset. Watchdog input. Backup-battery switch. Power-fail threshold accuracy +-4%. Power-fail comparator. Reset window +-75mV

Partnumber Manufacturer Quantity Availability
MAX805TCPA MAXIM 3400 In Stock

Description and Introduction

3.0V or 3.3V microprocessor supervisory circuit. Reset threshold 3.075V. Active-high reset. Watchdog input. Backup-battery switch. Power-fail threshold accuracy +-4%. Power-fail comparator. Reset window +-75mV The MAX805TCPA is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Maxim Integrated (Analog Devices)  
- **Part Number:** MAX805TCPA  
- **Package:** 8-pin PDIP (Plastic Dual In-line Package)  
- **Operating Voltage Range:** 1.8V 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:** Low (typically 5μA)  

### **Descriptions:**
- The MAX805TCPA is a voltage monitor and reset IC designed to ensure proper operation of microcontrollers, DSPs, and other logic systems.  
- It monitors the power supply voltage and asserts a reset signal if the voltage drops below a preset threshold, preventing erratic system behavior.  
- Suitable for battery-powered and low-voltage applications due to its wide operating range.  

### **Features:**
- **Manual Reset Input:** Allows for external push-button reset control.  
- **Power-On Reset (POR):** Ensures a valid reset signal upon power-up.  
- **Low-Power Operation:** Ideal for portable and battery-powered devices.  
- **Guaranteed Reset Output Valid Down to VCC = 1V:** Ensures reliable operation even at low voltages.  
- **No External Components Required:** Simplifies circuit design.  

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

Application Scenarios & Design Considerations

3.0V or 3.3V microprocessor supervisory circuit. Reset threshold 3.075V. Active-high reset. Watchdog input. Backup-battery switch. Power-fail threshold accuracy +-4%. Power-fail comparator. Reset window +-75mV

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