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MAX703

µP Reset IC with Battery-Backup

Partnumber Manufacturer Quantity Availability
MAX703 616 In Stock

Description and Introduction

µP Reset IC with Battery-Backup The MAX703 is a low-power, CMOS real-time clock (RTC) with an integrated trickle-charger and a 32.768kHz crystal oscillator. Below are its key specifications, descriptions, and features:

### **Manufacturer:**  
- Maxim Integrated (now part of Analog Devices)

### **Key Specifications:**  
- **Supply Voltage:** 2.7V to 5.5V  
- **Operating Current:** 300nA (typical)  
- **Timekeeping Accuracy:** ±2 minutes per month (at 25°C)  
- **Clock Frequency:** 32.768kHz  
- **Interface:** I²C (2-wire serial)  
- **Trickle Charger:** Supports rechargeable battery backup  
- **Alarm Function:** Programmable with interrupt output  
- **Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
- The MAX703 is designed for battery-backed timekeeping applications.  
- It includes an integrated oscillator circuit for a standard 32.768kHz tuning-fork crystal.  
- The trickle charger allows for automatic battery charging when main power is present.  
- It provides seconds, minutes, hours, day, date, month, and year data in BCD format.  

### **Features:**  
- **Ultra-Low Power Consumption:** Ideal for battery-operated devices.  
- **Battery Backup Support:** Maintains timekeeping during power loss.  
- **I²C Interface:** Simple communication with microcontrollers.  
- **Programmable Alarm:** Can trigger an interrupt for timing events.  
- **Leap Year Compensation:** Automatically adjusts for leap years.  
- **Small Package Options:** Available in 8-pin SO and µMAX packages.  

This information is strictly based on the MAX703 datasheet and manufacturer documentation.

Application Scenarios & Design Considerations

µP Reset IC with Battery-Backup

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