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MAX691ACUE+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX691ACUE+

Manufacturer: MAXIM

Microprocessor Supervisory Circuits

Partnumber Manufacturer Quantity Availability
MAX691ACUE+,MAX691ACUE MAXIM 10 In Stock

Description and Introduction

Microprocessor Supervisory Circuits The **MAX691ACUE+** 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 Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Category:** PMIC - Supervisors  
- **Package:** 16-TSSOP  
- **Type:** Simple Reset/Power-On Reset  
- **Number of Voltages Monitored:** 1  
- **Reset Threshold Voltage:** Adjustable or Fixed (depending on variant)  
- **Output Type:** Active-Low, Push-Pull  
- **Reset Timeout Period:** Adjustable or Fixed (typically 200ms)  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**
The **MAX691ACUE+** is a supervisory circuit designed to monitor microprocessor power supplies and provide a reset signal in case of power failure or voltage irregularities. It ensures reliable system operation by holding the microprocessor in reset during power-up, power-down, or brownout conditions.  

### **Features:**
- **Power-Fail Comparator:** Detects power supply drops before they disrupt system operation.  
- **Manual Reset Input:** Allows for external reset triggering.  
- **Low Quiescent Current:** Ensures minimal power consumption.  
- **Battery Backup Switchover:** Supports automatic switch to backup battery during power loss.  
- **Watchdog Timer:** Monitors system activity and resets the processor if software fails.  
- **Adjustable Reset Threshold:** Some variants allow customization of voltage monitoring levels.  

This IC is commonly used in embedded systems, industrial controls, and battery-powered applications where reliable power supervision is critical.  

For exact datasheet details, refer to the official Maxim Integrated (Analog Devices) documentation.

Application Scenarios & Design Considerations

Microprocessor Supervisory Circuits

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