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MAX691ACPE from MAXIM,MAXIM - Dallas Semiconductor

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MAX691ACPE

Manufacturer: MAXIM

Microprocessor Supervisory Circuits

Partnumber Manufacturer Quantity Availability
MAX691ACPE MAXIM 2500 In Stock

Description and Introduction

Microprocessor Supervisory Circuits The MAX691ACPE is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated. Below are the factual details about its specifications, descriptions, and features:

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Package:** 16-PDIP  
- **Supply Voltage Range:** 1.2V to 5.5V  
- **Operating Temperature Range:** 0°C to +70°C  
- **Watchdog Timer:** Yes, programmable (1.6s nominal timeout)  
- **Reset Threshold Accuracy:** ±1.5% (for 5V operation)  
- **Reset Timeout Period:** Adjustable (200ms min.)  
- **Backup Battery Switchover:** Yes, automatic  
- **Manual Reset Input:** Yes  
- **Low-Power CMOS Design:** Yes  

### **Descriptions:**  
The MAX691ACPE is a comprehensive μP supervisory circuit designed to monitor power supply voltages, manage watchdog timers, and provide reset signals to microprocessors. It ensures reliable system operation by preventing code execution errors during power-up, power-down, or brownout conditions.  

### **Features:**  
1. **Voltage Monitoring:** Monitors VCC for undervoltage conditions.  
2. **Watchdog Timer:** Prevents system lockup by resetting the μP if software fails to toggle the watchdog input.  
3. **Battery Backup Switching:** Automatically switches to backup battery when primary power fails.  
4. **Manual Reset Input:** Allows for external reset triggering.  
5. **Low Quiescent Current:** Consumes minimal power in backup mode.  
6. **Adjustable Reset Timeout:** Configurable reset pulse width.  
7. **Wide Supply Voltage Range:** Supports operation from 1.2V to 5.5V.  

These details are sourced from Maxim Integrated's official documentation.

Application Scenarios & Design Considerations

Microprocessor Supervisory Circuits

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