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M41T81M6

Serial Access Real-Time Clock with Alarms

Partnumber Manufacturer Quantity Availability
M41T81M6 100 In Stock

Description and Introduction

Serial Access Real-Time Clock with Alarms The M41T81M6 is a serial real-time clock (RTC) manufactured by STMicroelectronics. Below are its key specifications, descriptions, and features:

### **Manufacturer Specifications:**
- **Manufacturer:** STMicroelectronics  
- **Part Number:** M41T81M6  
- **Type:** Serial Real-Time Clock (RTC)  

### **Descriptions:**
- The M41T81M6 is a low-power serial RTC with a built-in 32.768 kHz oscillator.  
- It provides accurate timekeeping with seconds, minutes, hours, day, date, month, and year data.  
- It includes an automatic leap-year compensation feature.  
- Operates in both 12-hour and 24-hour formats.  

### **Features:**
- **Low Power Consumption:** Operates at very low power, making it suitable for battery-backed applications.  
- **Serial Interface:** Uses an I²C interface for communication.  
- **Wide Voltage Range:** Operates from **1.8V to 5.5V**, supporting various system voltages.  
- **Battery Backup:** Includes a built-in trickle charger for rechargeable batteries.  
- **Alarm Function:** Programmable alarm with interrupt capability.  
- **Temperature Compensation:** Ensures accurate timekeeping over a wide temperature range.  
- **Small Package:** Available in a **SO8N** package for compact designs.  
- **Extended Temperature Range:** Operates from **-40°C to +85°C**.  

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

Partnumber Manufacturer Quantity Availability
M41T81M6 ST 100 In Stock

Description and Introduction

Serial Access Real-Time Clock with Alarms The M41T81M6 is a serial real-time clock (RTC) manufactured by STMicroelectronics. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Manufacturer:**  
STMicroelectronics  

### **Specifications:**  
- **Interface:** I²C (400 kHz)  
- **Operating Voltage:** 1.3V to 4.4V  
- **Timekeeping Current:** 400nA (typical at 3V)  
- **Clock Accuracy:** ±5 ppm (±0.432 seconds/day) from 0°C to +60°C  
- **Temperature Range:** -40°C to +85°C  
- **Package:** SO8 (150-mil)  

### **Descriptions:**  
- The M41T81M6 is a low-power serial RTC with a built-in 32.768 kHz oscillator.  
- It provides timekeeping functions (seconds, minutes, hours, day, date, month, year) with leap-year compensation up to 2099.  
- Includes a programmable alarm and watchdog timer.  
- Features a battery switchover circuit for backup power.  

### **Features:**  
- **Low Power Consumption:** 400nA timekeeping current.  
- **Battery Backup:** Automatic switchover to backup supply.  
- **Alarm Function:** Programmable with interrupt output.  
- **Watchdog Timer:** Configurable timeout period.  
- **Square-Wave Output:** Programmable frequencies (32.768 kHz to 1 Hz).  
- **Tamper Detection:** Optional feature for security applications.  

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

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