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M41ST85YMH6 from STM,ST Microelectronics

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M41ST85YMH6

Manufacturer: STM

512 Kbit (64 Bit x8) Serial Access RTC and NVRAM Supervisor

Partnumber Manufacturer Quantity Availability
M41ST85YMH6 STM 40 In Stock

Description and Introduction

512 Kbit (64 Bit x8) Serial Access RTC and NVRAM Supervisor The M41ST85YMH6 is a serial real-time clock (RTC) manufactured by STMicroelectronics (STM). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Supply Voltage:** 2.7V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Timekeeping Current:** 400nA (typical at 3V)  
- **Interface:** I²C (400kHz)  
- **Package:** SOIC-8  

### **Descriptions:**  
- **Functionality:** Provides real-time clock/calendar with battery backup, alarm, and watchdog timer.  
- **Memory:** Includes 56 bytes of non-volatile RAM (NV SRAM).  
- **Accuracy:** ±5ppm (0.432s/day) at 25°C.  
- **Battery Backup:** Supports external battery or supercapacitor for timekeeping during power loss.  

### **Features:**  
- **Low Power Consumption:** Optimized for battery-operated applications.  
- **Automatic Leap Year Compensation:** Valid up to 2099.  
- **Programmable Alarm & Interrupt:** Supports minute, hour, or day/month alarms.  
- **Watchdog Timer:** Configurable timeout period (62.5ms to 31.25s).  
- **Power-Fail Detection:** Monitors VCC and switches to backup supply.  

This device is commonly used in embedded systems, industrial controls, and consumer electronics requiring accurate timekeeping.

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