Manufacturer Part Number
MCP79402T-I/MS
Manufacturer
Microchip Technology
Introduction
The MCP79402T-I/MS is a highly integrated real-time clock/calendar (RTC) IC designed for timekeeping applications.
Product Features and Performance
Alarm function
Leap Year compensation
Square Wave Output for peripheral devices
64 bytes of SRAM
Unique ID for device identification
Timekeeping accuracy maintained over temperature and voltage ranges
Product Advantages
Low current consumption optimizing battery life
Backup battery input for continuous timekeeping
Wide voltage range for versatile use
I2C interface for simple integration with most microcontrollers
Key Technical Parameters
HH:MM:SS (12/24-hour format) time format
YY-MM-DD-dd date format
8V to 5.5V voltage supply range
3V to 5.5V battery voltage range
2µA typical current consumption at 3.3V
Operating temperature range from -40°C to 85°C
Quality and Safety Features
High reliability and long-term stability
Robust package ensures protection from physical stress
Compatibility
Compatible with a wide range of microcontroller platforms via I2C protocol
Interchangeable with other devices in the MCP7940x series for design flexibility
Application Areas
Consumer electronics
Industrial systems
Automotive
Data loggers
Health and wellness devices
Product Lifecycle
Active product status, not indicated as nearing discontinuation
Availability of replacements or upgrades within the MCP7940x series
Several Key Reasons to Choose This Product
Precision timekeeping for critical applications
Low-power consumption extending product runtime
Flexible supply voltage compatibility, from low-power to standard devices
The on-chip memory and unique ID enhance functionality and security
Ease of design integration and broad operating temperature suitable for various environments
Robust surface-mount package suitable for compact PCB designs