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M41T83RQA6F from ST,ST Microelectronics

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M41T83RQA6F

Manufacturer: ST

Serial I2C bus real-time clock (RTC) with battery switch-over

Partnumber Manufacturer Quantity Availability
M41T83RQA6F ST 3 In Stock

Description and Introduction

Serial I2C bus real-time clock (RTC) with battery switch-over The M41T83RQA6F is a serial real-time clock (RTC) manufactured by STMicroelectronics. Below are the factual details about the device:

### **Manufacturer:**  
STMicroelectronics (ST)  

### **Specifications:**  
- **Interface:** I²C (400 kHz)  
- **Timekeeping Accuracy:** ±10 ppm (±0.5 minutes per month) at 25°C  
- **Operating Voltage:** 1.3V to 4.4V  
- **Low Battery Supply Voltage:** 1.0V (minimum)  
- **Timekeeping Current:** 350 nA (typical at 3V)  
- **Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin SOIC (150 mil)  

### **Descriptions:**  
- The M41T83RQA6F is a low-power serial real-time clock with a built-in 32.768 kHz oscillator.  
- It provides seconds, minutes, hours, day, date, month, and year information with automatic leap-year compensation.  
- Features a programmable alarm and watchdog timer.  
- Includes a power-fail detection circuit and battery switchover for backup power.  

### **Features:**  
- **Battery Backup:** Automatic switchover to battery supply when main power fails.  
- **Alarm Function:** Programmable alarm with interrupt output.  
- **Watchdog Timer:** Configurable timeout period.  
- **Oscillator Stability:** High accuracy with integrated load capacitance.  
- **Low Power Consumption:** Optimized for battery-operated applications.  
- **Tamper Detection:** Optional feature for security applications.  

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

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