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MAX691ACSE+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX691ACSE+

Manufacturer: MAXIM

Microprocessor Supervisory Circuits

Partnumber Manufacturer Quantity Availability
MAX691ACSE+,MAX691ACSE MAXIM 375 In Stock

Description and Introduction

Microprocessor Supervisory Circuits The **MAX691ACSE+** 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 factual information:  

### **Specifications:**  
- **Manufacturer:** Maxim Integrated (now Analog Devices)  
- **Type:** Microprocessor Supervisory Circuit  
- **Package:** 16-pin SOIC (Small Outline Integrated Circuit)  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Accuracy:** ±1.5%  
- **Reset Timeout Period:** Adjustable or fixed (depends on variant)  
- **Watchdog Timer:** Yes (programmable)  
- **Manual Reset Input:** Yes  
- **Backup Battery Switchover:** Yes  
- **Low-Power Consumption:** Typically 5µA (standby)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The **MAX691ACSE+** is designed to monitor power supply voltages in microprocessor-based systems. It ensures proper system operation by generating a reset signal if the supply voltage falls below a specified threshold. It includes a watchdog timer, manual reset input, and backup battery switchover for power-fail protection.  

### **Features:**  
- **Voltage Monitoring:** Monitors VCC for undervoltage conditions.  
- **Reset Output:** Active-low or active-high reset signal.  
- **Watchdog Timer:** Prevents system lockup by requiring periodic toggling.  
- **Battery Backup:** Automatically switches to backup battery during power failure.  
- **Manual Reset Input:** Allows external reset triggering.  
- **Low Quiescent Current:** Minimizes power consumption.  
- **Wide Operating Voltage Range:** Supports 1.2V to 5.5V systems.  

This information is based on the manufacturer's datasheet and technical documentation. For detailed electrical characteristics and application notes, refer to the official **Maxim Integrated (Analog Devices)** datasheet.

Application Scenarios & Design Considerations

Microprocessor Supervisory Circuits

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