Microchip MCP7940MT-I/SN, Real Time Clock (RTC) Serial-2 Wire, Serial-I2C, 8-Pin SOIC

RS Stock No.: 111-3741Brand: MicrochipManufacturers Part No.: MCP7940MT-I/SN
brand-logo
View all in Real Time Clocks

Technical Document

Specifications

Functions

Calendar, Clock

Date Format

DM:M:DW:Y

Time Format

HH:MM:SS

Bus Type

Serial-2 Wire, Serial-I2C

Mounting Type

Surface Mount

Package Type

SOIC

Pin Count

8

Dimensions

4.9 x 3.9 x 1.5mm

Length

4.9mm

Width

3.9mm

Height

1.5mm

Maximum Operating Supply Voltage

5.5 V

Minimum Operating Temperature

-40 °C

Maximum Operating Temperature

+85 °C

Minimum Operating Supply Voltage

1.8 V

Product details

MCP7940M I²C Real-Time Clock/Calendars

The Microchip MCP7940M is Real-Time Clock Calendar (RTCC) that supports I²C communications. The MCP7940M includes a digital trimming circuit for accuracy which can compensate for crystal tolerance and temperature.

The MCP7940M features a multi-functional output that can be configured as an alarm output, to output a selectable frequency square wave or as a general purpose output.

Features

2-Wire Serial Interface, I²C™ Compatible: I²C clock rate up to 400 kHz
On-Chip Digital Trimming/Calibration: ±1 ppm resolution, ±129 ppm range
Tracks Hours, Minutes, Seconds, Day of Week, Day, Month and Year
Leap Year Compensated to 2399
12/24 Hour Modes
Oscillator for 32.768 kHz Crystals: Optimised for 6-9 pF crystals
Dual Programmable Alarms
Versatile Output Pin
Wide Operating Voltage Range: 1.8V to 5.5V
Low Typical Timekeeping Current: 1.2μA at 3.3V

Real Time Clock Peripherals - Microchip

Stock information temporarily unavailable.

Please check again later.

Stock information temporarily unavailable.

P.O.A.

Microchip MCP7940MT-I/SN, Real Time Clock (RTC) Serial-2 Wire, Serial-I2C, 8-Pin SOIC

P.O.A.

Microchip MCP7940MT-I/SN, Real Time Clock (RTC) Serial-2 Wire, Serial-I2C, 8-Pin SOIC
Stock information temporarily unavailable.

Ideate. Create. Collaborate

JOIN FOR FREE

No hidden fees!

design-spark
design-spark
  • Download and use our DesignSpark software for your PCB and 3D Mechanical designs
  • View and contribute website content and forums
  • Download 3D Models, Schematics and Footprints from more than a million products
Click here to find out more

Technical Document

Specifications

Functions

Calendar, Clock

Date Format

DM:M:DW:Y

Time Format

HH:MM:SS

Bus Type

Serial-2 Wire, Serial-I2C

Mounting Type

Surface Mount

Package Type

SOIC

Pin Count

8

Dimensions

4.9 x 3.9 x 1.5mm

Length

4.9mm

Width

3.9mm

Height

1.5mm

Maximum Operating Supply Voltage

5.5 V

Minimum Operating Temperature

-40 °C

Maximum Operating Temperature

+85 °C

Minimum Operating Supply Voltage

1.8 V

Product details

MCP7940M I²C Real-Time Clock/Calendars

The Microchip MCP7940M is Real-Time Clock Calendar (RTCC) that supports I²C communications. The MCP7940M includes a digital trimming circuit for accuracy which can compensate for crystal tolerance and temperature.

The MCP7940M features a multi-functional output that can be configured as an alarm output, to output a selectable frequency square wave or as a general purpose output.

Features

2-Wire Serial Interface, I²C™ Compatible: I²C clock rate up to 400 kHz
On-Chip Digital Trimming/Calibration: ±1 ppm resolution, ±129 ppm range
Tracks Hours, Minutes, Seconds, Day of Week, Day, Month and Year
Leap Year Compensated to 2399
12/24 Hour Modes
Oscillator for 32.768 kHz Crystals: Optimised for 6-9 pF crystals
Dual Programmable Alarms
Versatile Output Pin
Wide Operating Voltage Range: 1.8V to 5.5V
Low Typical Timekeeping Current: 1.2μA at 3.3V

Real Time Clock Peripherals - Microchip