MCP7940M-I/P
- Mfr.Part #
- MCP7940M-I/P
- Manufacturer
- Microchip Technology
- Package / Case
- 8-DIP (0.300, 7.62mm)
- Datasheet
- Download
- Description
- IC RTC CLK/CALENDAR I2C 8DIP
- Stock
- 21
- In Stock :
- 21
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- Manufacturer :
- Microchip Technology
- Product Category :
- Real Time Clocks
- Product Type :
- Real Time Clocks
- Width :
- 7.11mm
- Terminal Finish :
- Matte Tin (Sn) - annealed
- Height :
- 4.95mm
- Number of Timers :
- 1
- JESD-30 Code :
- R-PDIP-T8
- Date Format :
- YY-MM-DD-dd
- Features :
- Alarm, Leap Year, Square Wave Output, SRAM
- Base Product Number :
- MCP7940
- Voltage - Supply :
- 1.8V~5.5V
- Screening Level :
- Industrial
- JESD-609 Code :
- e3
- Base Part Number :
- MCP7940M
- Peak Reflow Temperature (Cel) :
- Not Applicable
- Terminal Form :
- THROUGH-HOLE
- Operating Temperature (Max) :
- 85C
- Rad Hardened :
- No
- Operating Supply Voltage :
- 2.5, 3.3, 5 V
- Interface :
- I2C, 2-Wire Serial
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Non-Volatile Memory :
- 64 B
- Lead Free :
- Lead Free
- Operating Temperature Classification :
- Industrial
- Published :
- 2007
- Function :
- Clock/Calendar/Alarm
- Minimum Operating Temperature :
- -40 °C
- Weight :
- 930.006106mg
- Feature :
- Alarm, Leap Year, Square Wave Output, SRAM
- Product Category :
- Real Time Clock
- Dimensions :
- 10.16 x 7.11 x 4.95mm
- Operating Temperature :
- -40°C~85°C
- Radiation Hardening :
- No
- Number of Terminals :
- 8
- Power Supplies :
- 2/5V
- Operating Supply Voltage (Min) :
- 1.8(V)
- Type :
- Clock/Calendar
- Mounting :
- Through Hole
- Minimum Operating Supply Voltage :
- 1.8 V
- Battery Backup Switching :
- No Backup Switching
- Pin Count :
- 8
- Factory Lead Time :
- 7 Weeks
- Packaging :
- Tube
- Time Format :
- HH:MM:SS (12/24 hr)
- Qualification Status :
- Not Qualified
- Product Status :
- Active
- Supply Voltage :
- 2.5V
- Volatile :
- No
- Series :
- -
- Number of Pins :
- 8
- Operating Temperature (Min) :
- -40C
- Functions :
- Alarm, Calendar
- RoHS :
- Details
- RoHS Status :
- ROHS3 Compliant
- Brand :
- Microchip Technology / Atmel
- Package Type :
- PDIP
- ECCN Code :
- EAR99
- Current - Timekeeping (Max) :
- 1μA @ 5.5V
- Operating Supply Voltage (Max) :
- 5.5(V)
- Seated Height-Max :
- 5.334 mm
- Length :
- 10.16mm
- Logic Function :
- Clock
- Mounting Style :
- Through Hole
- REACH SVHC :
- No SVHC
- Memory Size :
- 64B
- Maximum Operating Supply Voltage :
- 5.5 V
- Operating Supply Voltage (Typ) :
- 2.5/3.3/5(V)
- Manufacturer :
- Microchip
- Supplier Device Package :
- 8-PDIP
- Terminal Position :
- Dual
- Mounting Type :
- Through Hole
- Voltage - Supply, Battery :
- -
- Package Shape :
- RECTANGULAR
- Terminal Pitch :
- 2.54mm
- Time-Min :
- SECONDS
- Surface Mount :
- No
- Information Access Method :
- I2C
- Bus Type :
- Serial I2C
- Package :
- Tube
- MSL :
- -
- Supplier Package :
- PDIP
- Number of Terminations :
- 8
- HTS Code :
- 8542.39.00.01
- Temperature Grade :
- Industrial
- Maximum Operating Temperature :
- +85 °C
- uPs/uCs/Peripheral ICs Type :
- TIMER, REAL TIME CLOCK
- Interrupt Capability :
- Y
- Package / Case :
- 8-DIP (0.300, 7.62mm)
- Reach Compliance Code :
- Compliant
- Datasheets
- MCP7940M-I/P

Real Time Clocks Microchip Technology MCP7940M-I/P Overview
The Real Time Clocks Microchip Technology MCP7940M-I/P is a highly reliable and precise real-time clock/calendar integrated circuit, designed by Microchip Technology. It is housed in an 8-pin DIP package and operates over a standard I2C interface, making it an ideal choice for embedded systems that require accurate timekeeping. This component is perfect for applications needing a compact, low-power solution to maintain time/date functions across power cycles and system restarts, ensuring smooth and efficient operations in various industrial and commercial devices.
MCP7940M-I/P Features
- I2C Interface: Offers easy integration with most microcontrollers, providing a simple two-wire setup for communication.
- Battery Backup Input: Maintains timekeeping in events of power loss, enhancing reliability and performance continuity.
- Automatic Leap Year Compensation: Accurate calendar functionality until 2399 without additional programming from the user.
- 64-byte SRAM: Additional scratchpad memory provides space for data storage in real-time applications.
- Low-Power Consumption: Designed for devices requiring minimal power usage, extending overall battery life of the application.
- Programmable Clock Output: Allows customization for various application needs, furthering its versatility.
MCP7940M-I/P Applications
- Consumer Electronics: Utilized in devices like smart watches and home automation systems to manage time-based functions accurately.
- Industrial Systems: Ensures precise timing in manufacturing processes, critical for maintaining efficiency and system synchronization.
- Telecommunication Equipment: Used to maintain time stamps and logs in network devices, essential for troubleshooting and maintenance.
- Portable Medical Devices: Key component in devices such as wearable health monitors, where accurate timekeeping is crucial for data integrity and device functionality.
- Automotive: Integrates into vehicle telematics systems to provide real-time clock functionality, enhancing navigation and system updates.
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