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MAX693 from MAX,MAXIM - Dallas Semiconductor

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MAX693

Manufacturer: MAX

Microprocessor Supervisory Circuits

Partnumber Manufacturer Quantity Availability
MAX693 MAX 10 In Stock

Description and Introduction

Microprocessor Supervisory Circuits The MAX693 is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated. Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Supply Voltage Range:** 1.2V to 5.5V  
- **Backup Battery Switchover:** Automatic switchover to backup battery when VCC drops below a preset threshold  
- **Watchdog Timer:** Programmable timeout period (150ms, 600ms, or 1.2s)  
- **Reset Output:** Active-low RESET signal with 200ms min delay  
- **Low Quiescent Current:** 30μA (typical) in battery backup mode  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The MAX693 is designed to monitor power supply voltages in microprocessor-based systems. It ensures reliable 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 battery backup switchover for data retention.  

### **Features:**  
- **Voltage Monitoring:** Monitors VCC and triggers reset if voltage falls below threshold  
- **Battery Backup:** Seamless switchover to backup battery  
- **Watchdog Timer:** Prevents system lockup with adjustable timeout  
- **Low Power Consumption:** Ideal for battery-powered applications  
- **Small Package Options:** Available in 8-pin DIP, SO, and µMAX packages  

The MAX693 is commonly used in embedded systems, industrial controls, and portable electronics requiring reliable power management.  

(Source: Maxim Integrated Datasheet)

Application Scenarios & Design Considerations

Microprocessor Supervisory Circuits

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