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M41T81SM6E from ST,ST Microelectronics

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M41T81SM6E

Manufacturer: ST

Serial Access Real-Time Clock with Alarms

Partnumber Manufacturer Quantity Availability
M41T81SM6E ST 986 In Stock

Description and Introduction

Serial Access Real-Time Clock with Alarms The M41T81SM6E is a real-time clock (RTC) manufactured by STMicroelectronics. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

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

### **Specifications:**  
- **Interface:** I²C (400 kHz)  
- **Supply Voltage:** 1.3V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Timekeeping Current:** 400nA (typical at 3V)  
- **Clock Accuracy:** ±5ppm (±0.432 seconds/day) at 25°C  
- **Package:** SO8 (150mil)  

### **Descriptions:**  
- Low-power serial real-time clock (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 during power loss.  

### **Features:**  
- **Low Power Consumption:** Ultra-low battery current (400nA typical).  
- **Wide Voltage Range:** Operates from 1.3V to 5.5V.  
- **I²C Interface:** Supports standard (100 kHz) and fast (400 kHz) modes.  
- **Integrated Oscillator:** Includes a trimmed 32.768 kHz crystal oscillator.  
- **Alarm Function:** Configurable alarm with interrupt output.  
- **Watchdog Timer:** Programmable timeout period.  
- **Battery Backup:** Supports seamless switchover between main power and backup battery.  

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

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