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M41T83RMY6F from ST,ST Microelectronics

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M41T83RMY6F

Manufacturer: ST

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

Partnumber Manufacturer Quantity Availability
M41T83RMY6F ST 5000 In Stock

Description and Introduction

Serial I2C bus real-time clock (RTC) with battery switch-over The M41T83RMY6F is a serial real-time clock (RTC) manufactured by STMicroelectronics. Below are the factual details about its specifications, descriptions, and features:  

### **Manufacturer:**  
STMicroelectronics  

### **Specifications:**  
- **Interface:** I²C (400 kHz)  
- **Supply Voltage:** 1.3V to 4.4V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Timekeeping Current:** 400nA (typical) @ 3V  
- **Clock Accuracy:** ±5ppm (±0.432 seconds/day) @ 25°C  
- **Package:** SO8 (150 mil)  

### **Descriptions:**  
- Low-power serial RTC with a built-in 32.768 kHz oscillator.  
- Provides seconds, minutes, hours, day, date, month, and year information with automatic leap-year compensation.  
- Includes a programmable alarm and watchdog timer.  
- Battery backup support for continuous timekeeping.  

### **Features:**  
- **Low Power Consumption:** Ultra-low battery current (400nA typical).  
- **Wide Voltage Range:** Operates from 1.3V to 4.4V.  
- **I²C Interface:** Supports standard (100 kHz) and fast (400 kHz) modes.  
- **Integrated Oscillator:** Includes a trimmed 32.768 kHz crystal for accurate timekeeping.  
- **Alarm Function:** Programmable alarm with interrupt output.  
- **Watchdog Timer:** Configurable timeout period.  
- **Battery Backup:** Maintains timekeeping during power loss.  
- **Industrial Temperature Range:** -40°C to +85°C.  

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

Application Scenarios & Design Considerations

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

Alternative Part Number

  • DS3231MZ+ --: Highly accurate I2C real-time clock with integrated crystal, similar SOIC-8 package and I2C interface, good functional replacement for timekeeping applications.
  • PCF8563T --: Low-power I2C real-time clock/calendar in SOIC-8, widely available and pin-function compatible for basic RTC needs, though without integrated crystal.
  • RV-3028-C7 --: Ultra-low-power I2C RTC module with integrated crystal and similar functionality, suitable alternative when low power consumption and compact RTC are required.

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