M41ST87WSS6F - STMicroelectronics

Manufacturer Part Number

M41ST87WSS6F

Manufacturer

stmicroelectronics

Introduction

The M41ST87WSS6F is a sophisticated real-time clock component designed for a wide range of applications requiring timekeeping and additional features like alarms and memory backup.

Product Features and Performance

Real-time clock/calendar functionality

Comprehensive feature set including Alarm, Leap Year compatibility, NVSRAM for non-volatile storage, Square Wave Output, Supervisor function, and Watchdog Timer for system resets.

128B of NVSRAM for data storage

HH:MM:SS:hh (24 hr) time format and YY-MM-DD-dd date format for ease of use

I2C, 2-Wire Serial interface for easy integration into systems

Low timekeeping current of 0.5mA @ 2.7V ~ 3.6V

Supports a wide range of supply voltages (2.7V ~ 3.6V for Vcc and 2.5V ~ 3.6V for battery)

Product Advantages

Integrated features reduce component count and system complexity

Non-volatile memory for important data retention without power

Flexible power requirements compatible with various power supply designs

Small form factor (20-SSOP package) suitable for compact PCB designs

Key Technical Parameters

Memory Size: 128B

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

Date Format: YY-MM-DD-dd

Interface: I2C, 2-Wire Serial

Voltage Supply: 2.7V ~ 3.6V

Voltage Supply, Battery: 2.5V ~ 3.6V

Current Timekeeping (Max): 0.5mA @ 2.7V ~ 3.6V

Operating Temperature: -40°C ~ 85°C

Quality and Safety Features

Built to operate reliably within a wide temperature range of -40°C to 85°C, ensuring suitability for demanding applications

Produced by stmicroelectronics, a global leader in semiconductor solutions, ensuring high manufacturing and quality standards

Compatibility

The I2C, 2-wire serial interface ensures compatibility with a broad range of microcontrollers and processors

The device's 20-SSOP package is a common footprint, aiding in ease of design and replacement

Application Areas

Consumer electronics

Embedded systems

IoT devices

Industrial control systems

Automotive electronics

Product Lifecycle

This product is currently active, suggesting stmicroelectronics still supports and manufactures it

No indications of nearing discontinuation, providing confidence in long-term availability

Replacement or upgrade paths are available for future considerations

Several Key Reasons to Choose This Product

Comprehensive integration of features like real-time clock, alarm, and memory backup increases system value with minimal additional componentry

Low power consumption facilitates use in battery-operated devices

Wide operational temperature range makes it suitable for a vast array of applications, from industrial to consumer electronics

The reliability and quality assurance of a product manufactured by stmicroelectronics

Future-proof design with active product status and support for long-term projects