MCP7940N-I/SN - Microchip Technology

Manufacturer Part Number

MCP7940N-I/SN

Manufacturer

Microchip Technology

Introduction

The MCP7940N-I/SN is a real-time clock/calendar with memory and a host of features suitable for a variety of timing and clock management applications.

Product Features and Performance

Real-time clock/calendar functionality

Alarm feature

Leap year compensation

Square wave output

64 bytes of SRAM

Supports HH:MM:SS (12/24 hour) time format

Supports YY-MM-DD-dd date format

I2C, 2-Wire Serial interface for communication

Low-power design

Product Advantages

Comprehensive timekeeping features

Robust alarm system

High compatibility with microcontroller systems due to I2C interface

Low timekeeping current aids in energy-efficient designs

Key Technical Parameters

Memory Size: 64 bytes

Time Format: HH:MM:SS (12/24 hr)

Date Format: YY-MM-DD-dd

Voltage Supply: 1.8V to 5.5V

Voltage Supply, Battery: 1.3V to 5.5V

Current Timekeeping (Max): 1.2µA @ 3.3V

Operating Temperature Range: -40°C to 85°C

Quality and Safety Features

Automotive-grade product quality

Qualified under AEC-Q100 standards for reliability

Compatibility

Compatible with a wide range of microcontroller systems via its I2C interface

Supports a range of power supply voltages for flexible use

Application Areas

Consumer electronics

Automotive applications

Industrial controls

Portable devices

Product Lifecycle

Product Status: Active

Not nearing discontinuation

Replacement and upgrade options available

Key Reasons to Choose This Product

Reliable timing and clock management solution from a reputable manufacturer

Low power consumption for battery-sensitive applications

Highly integrated with alarm and calendar features reducing additional component need

Versatile interfacing options make it easy to integrate into a variety of systems

Automotive qualification ensures high-standard performance and durability in harsh environments