MCP7940MT-I/SN - Microchip Technology

Manufacturer Part Number

MCP7940MT-I/SN

Manufacturer

Microchip Technology

Introduction

The MCP7940MT-I/SN is a highly integrated Real-Time Clock (RTC) with a multitude of features targeted for timekeeping and control applications.

Product Features and Performance

Real-time clock/calendar functionality

Alarm feature with multiple settings

Square wave output for clock reference

64B of built-in SRAM

Supports I2C two-wire serial communication

Leap year compensated up to the year 2399

Product Advantages

Low timekeeping current of 1µA at 5.5V

Wide voltage supply range from 1.8V to 5.5V

Extended operating temperature range from -40°C to +85°C

Robust interfacing with I2C devices

Battery-backup functionality for continuous timekeeping

Key Technical Parameters

Memory Size: 64 Bytes

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

Date Format: YY-MM-DD-dd

Voltage - Supply: 1.8V ~ 5.5V

Current - Timekeeping (Max): 1µA @ 5.5V

Operating Temperature: -40°C ~ 85°C

Quality and Safety Features

Reliable SMT (Surface-Mount Technology) package

Compliant with multiple safety and quality standards

Compatibility

Compatible with various microcontrollers via I2C interface

Standard 8-SOIC package for easy PCB design and assembly

Application Areas

Consumer electronics

Industrial automation

Automotive systems

Embedded systems

Communication equipment

Product Lifecycle

Product Status: Active

Not nearing discontinuation and suitable for new designs

Several Key Reasons to Choose This Product

Precision timekeeping suitable for complex systems

Minimal power consumption enhances battery life for portable devices

Flexible voltage range supports integration with a variety of logic levels

Alarm and square wave output features provide additional functionality beyond timekeeping

Durable and wide temperature range suitable for harsh environments

Ease of design integration due to standard SOIC package