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MAX814T-CSA from MAXIM,MAXIM - Dallas Semiconductor

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MAX814T-CSA

Manufacturer: MAXIM

+-1% accuracy, low-power, microprocessor supervisory circuit. Reset trip threshold (min) 3.00V (max) 3.06V, push-pull active-low reset output, push-pull active-high reset output, manual reset, power-fail monitor, low-line detector.

Partnumber Manufacturer Quantity Availability
MAX814T-CSA,MAX814TCSA MAXIM 465 In Stock

Description and Introduction

+-1% accuracy, low-power, microprocessor supervisory circuit. Reset trip threshold (min) 3.00V (max) 3.06V, push-pull active-low reset output, push-pull active-high reset output, manual reset, power-fail monitor, low-line detector. The MAX814T-CSA 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:** MAX814T-CSA  
- **Package:** 8-pin SOIC (CSA denotes the package type)  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Options:** Adjustable or fixed (factory-set)  
- **Reset Timeout Period:** Typically 140ms (adjustable with external capacitor)  
- **Manual Reset Input:** Active-low (MR) for external reset control  
- **Watchdog Timer:** Yes (1.6s typical timeout)  
- **Power-On Reset (POR) Delay:** Guaranteed valid reset upon power-up  
- **Operating Temperature Range:** Commercial (0°C to +70°C)  

### **Descriptions:**  
The MAX814T-CSA is a μP supervisory circuit designed to monitor power supply voltages in microprocessor-based systems. It ensures proper system operation by generating a reset signal during power-up, power-down, or brownout conditions. It includes a watchdog timer to detect software lockups and a manual reset input for external control.  

### **Features:**  
- Monitors **VCC** for undervoltage conditions  
- **Active-low RESET output** (asserted when VCC falls below threshold)  
- **Watchdog timer** resets the system if not toggled within the timeout period  
- **Manual reset input (MR)** for external system reset  
- **Low quiescent current** (typically 50μA)  
- **Adjustable reset threshold** (with external resistors)  
- **Guaranteed reset valid down to VCC = 1V**  

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

Application Scenarios & Design Considerations

+-1% accuracy, low-power, microprocessor supervisory circuit. Reset trip threshold (min) 3.00V (max) 3.06V, push-pull active-low reset output, push-pull active-high reset output, manual reset, power-fail monitor, low-line detector.

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