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MAX814LCSA from MAXIM,MAXIM - Dallas Semiconductor

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MAX814LCSA

Manufacturer: MAXIM

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

Partnumber Manufacturer Quantity Availability
MAX814LCSA MAXIM 334 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, push-pull active-high reset output, manual reset, power-fail monitor, low-line detector. The MAX814LCSA is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated (now part of Analog Devices). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:  

### **Specifications:**  
- **Manufacturer:** Maxim Integrated (now Analog Devices)  
- **Part Number:** MAX814LCSA  
- **Package:** 8-pin SOIC (Small Outline Integrated Circuit)  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Options:** Adjustable or fixed (4.38V, 4.63V, or 4.88V for 5V systems)  
- **Reset Timeout Period:** 140ms (min), 200ms (typ), 280ms (max)  
- **Manual Reset Input:** Active-low (MR) with internal pull-up  
- **Power-On Reset (POR) Detection:** Ensures proper system initialization  
- **Watchdog Timer:** 1.6s timeout (typ)  
- **Operating Temperature Range:** 0°C to +70°C (Commercial grade)  
- **Quiescent Current:** 40μA (typ)  

### **Descriptions:**  
The MAX814LCSA is a low-power μP supervisory circuit designed to monitor power supply voltages in microprocessor-based systems. It provides reset signals during power-up, power-down, and brownout conditions. The watchdog timer monitors system activity, and the manual reset input allows for user-initiated resets.  

### **Features:**  
- **Power Supply Monitoring:** Detects voltage drops below a preset threshold.  
- **Reset Output:** Active-low open-drain reset signal (RESET).  
- **Watchdog Timer:** Resets the system if software fails to toggle within a set time.  
- **Manual Reset Capability:** Allows external push-button reset.  
- **Low Power Consumption:** Ideal for battery-powered applications.  
- **Guaranteed Reset Valid Down to VCC = 1V:** Ensures reliable operation.  
- **Space-Saving 8-Pin SOIC Package:** Suitable for compact designs.  

This information is based 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, push-pull active-high reset output, manual reset, power-fail monitor, low-line detector.

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