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MAX691CPE

Microprocessor Supervisory Circuits

Partnumber Manufacturer Quantity Availability
MAX691CPE 20 In Stock

Description and Introduction

Microprocessor Supervisory Circuits The MAX691CPE is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated. Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Manufacturer:** Maxim Integrated  

### **Specifications:**  
- **Supply Voltage Range:** 1.2V to 5.5V  
- **Operating Temperature Range:** 0°C to +70°C  
- **Package Type:** 16-pin PDIP (Plastic Dual In-line Package)  
- **Reset Threshold Accuracy:** ±1.5% (typical)  
- **Reset Timeout Period:** Adjustable or fixed (depending on variant)  
- **Watchdog Timer:** Yes (programmable)  
- **Manual Reset Input:** Yes  
- **Battery Backup Switchover:** Yes  
- **Low Quiescent Current:** Typically 5µA (in battery backup mode)  

### **Descriptions:**  
The MAX691CPE is a comprehensive μP supervisory circuit designed to monitor power supply voltages, provide reset signals, and ensure reliable system operation. It integrates functions such as power-fail detection, watchdog timer, and battery backup switchover to prevent data corruption during power failures.  

### **Features:**  
- **Power Supply Monitoring:** Monitors VCC for undervoltage conditions.  
- **Reset Output:** Active-low reset signal for μP initialization.  
- **Watchdog Timer:** Prevents system lockup by requiring periodic toggling.  
- **Battery Backup:** Automatically switches to backup battery when main power fails.  
- **Manual Reset Input:** Allows external pushbutton reset.  
- **Low-Power Operation:** Minimal current draw in backup mode.  
- **Wide Supply Voltage Range:** Supports operation from 1.2V to 5.5V.  

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

Application Scenarios & Design Considerations

Microprocessor Supervisory Circuits

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