M41ST85WMH6F - STMicroelectronics

Manufacturer Part Number

M41ST85WMH6F

Manufacturer

stmicroelectronics

Introduction

The M41ST85WMH6F is a sophisticated real-time clock/calendar integrated circuit equipped with additional features such as alarm, NVSRAM, square wave output, supervisor, and watchdog timer, designed for applications requiring accurate timekeeping, data storage, and system monitoring.

Product Features and Performance

Clock/Calendar functionality with HH:MM:SS:hh format for 24-hour timekeeping

Features Alarm, Leap Year correction, Non-Volatile SRAM, Square Wave Output

Supervisor and Watchdog Timer capabilities for system integrity checks

44 bytes of user NVSRAM

I2C, 2-Wire Serial interface for easy communication

Highly efficient power management with a timekeeping current of max. 0.5mA

Wide operating temperature range from -40°C to 85°C

Product Advantages

Integrated features reduce system component count

Low timekeeping current extends battery life

Wide temperature range enhances system reliability in extreme conditions

NVSRAM for secure and quick data storage without battery backup

Easy integration into systems with I2C interface

Key Technical Parameters

Memory Size: 44B

Time Format: HH:MM:SS:hh (24 hr)

Date Format: YY-MM-DD-dd

Voltage Supply: 2.7V ~ 3.6V

Voltage Supply, Battery: 2.5V ~ 3.5V

Current Timekeeping (Max): 0.5mA

Operating Temperature: -40°C ~ 85°C

Mounting Type: Surface Mount

Quality and Safety Features

Robust design ensuring reliable operation under wide range of environmental conditions

High-quality construction for longevity and consistent performance

Compatibility

Compatible with various microcontrollers via I2C interface

Adaptable to multiple systems with 2.7V ~ 3.6V power supply range

Application Areas

Embedded Systems

Industrial Control Systems

Consumer Electronics

Communication Devices

Data Loggers and Security Systems

Product Lifecycle

Current Status: Active

Reflects ongoing manufacturer support

Not nearing discontinuation, with replacements or upgrades not required in near term

Several Key Reasons to Choose This Product

Comprehensive clock/calendar features with alarms and timekeeping enhancements

Integrated safety and data protection functionalities

Low power consumption optimizes system efficiency

Easy integration and wide compatibility with existing systems

Supported by STMicroelectronics, a leader in semiconductor solutions

Robust operation within a broad temperature range suits various application needs