Microchip Real Time Clock 64-bit DW:DM:M:Y, 8-Pin SOIC Surface MCP7940M-I/SN

Microchip MCP7940M-I/SN is a high accuracy Real Time Clock (RTC) featuring 64-bit calendar memory and an I2C interface for seamless integration in electronic systems. It supports date format DW:DM:M:Y and time format HH:MM:SS, suitable for precise time tracking in industrial, commercial, and embedded applications.

This RTC IC operates in a wide voltage range (1.8V to 5.5V) and exhibits a low timekeeping current of 1.2μA at 3.3V, optimizing power consumption for battery-powered devices. The device includes an on-chip digital trimming circuit allowing ±1 ppm resolution trimming and compensation over a ±129 ppm range, enhancing timing accuracy by compensating for crystal tolerance and temperature variations.

It includes dual programmable alarms and a versatile multifunction output configurable as an alarm, frequency square wave output, or general-purpose output, offering flexible event signalling or clock generation.

Designed for 32.768 kHz crystals with a load capacitance of 6 to 9 pF, the MCP7940M is equipped to maintain accuracy in demanding environments. It supports both 12 and 24-hour time modes and includes leap year compensation extending to the year 2399, ensuring long-term calendar reliability.

The compact 8-pin SOIC surface mount package measures 4.9 mm long, 3.9 mm wide, and 1.25 mm high, facilitating space-efficient PCB design. With an operating temperature range of -40°C to 85°C, this RTC is suited for a wide variety of industrial, automotive, and consumer electronics applications.

Features 64-bit calendar memory with 12/24-hour clock modes. Wide supply voltage range from 1.8V to 5.5V enhances versatility. Low current consumption supports battery-powered devices. On-chip digital trimming ensures precise timekeeping.

Dual alarms and multifunctional output for event and frequency functions. Optimized for 32.768 kHz crystal oscillators with 6-9pF capacitance. Compact SOIC 8-pin surface mount package. Wide operating temperature range supports diverse industrial uses.

This Microchip MCP7940M-I/SN Real Time Clock is ideal for use in embedded systems, industrial controls, telecommunications, and other fields requiring precise time and date tracking. Explore the Electronics & Electricals category at EnvMart for a broad range of semiconductor and timing components to complement your designs.