Manufacturer Part Number
MCP7940M-I/MS
Manufacturer
Microchip Technology
Introduction
The MCP7940M-I/MS from Microchip Technology is a compact real-time clock/calendar with memory and multiple features.
Product Features and Performance
Clock/Calendar functionality
Alarm feature for task scheduling
Leap year compensation
Square Wave Output for timekeeping signals
64 Bytes of SRAM
I2C, 2-Wire Serial interface for communication
Supports both 12 and 24-hour time formats
YY-MM-DD-dd date format compatibility
Low power consumption
Product Advantages
High accuracy and reliability
Low timekeeping current allowing extended battery life
Wide voltage supply range catering to varied applications
Integrated battery backup support
Key Technical Parameters
Memory Size: 64B
Time Format: HH:MM:SS (12/24 hr)
Date Format: YY-MM-DD-dd
Interface: I2C, 2-Wire Serial
Voltage - Supply: 1.8V ~ 5.5V
Current - Timekeeping (Max): 1µA @ 5.5V
Operating Temperature: -40°C ~ 85°C
Quality and Safety Features
High endurance and long operational life
Stable performance over full temperature range
Compatibility
Compatible with a variety of microcontrollers and systems that support I2C protocol
Application Areas
Consumer Electronics
Industrial Control Systems
Data Loggers
Wearable Devices
Smart Home Systems
Product Lifecycle
Active Product
Not near discontinuation
Replacements or upgrades are available within Microchip's product range
Several Key Reasons to Choose This Product
High integration with onboard SRAM for additional memory needs
Simple to integrate with existing hardware through I2C
Wide operating voltage range suitable for battery-powered or mains-powered equipment
Ultra low-current consumption for efficient battery use
Robust operational temperature range suitable for harsh environments
Multi-featured with alarms and square wave outputs to aid in complex project requirements
Versatile for various applications due to its small size and features