MCP7940NT-I/MS
- Mfr.Part #
- MCP7940NT-I/MS
- Manufacturer
- Microchip Technology
- Package / Case
- 8-TSSOP, 8-MSOP (0.118, 3.00mm Width)
- Datasheet
- Download
- Description
- IC RTC CLK/CALENDAR I2C 8-MSOP
- Stock
- 66,430
- In Stock :
- 66,430
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- Manufacturer :
- Microchip Technology
- Product Category :
- Real Time Clocks
- Product Category :
- Real Time Clock
- Schedule B :
- 8542390000, 8542390000/8542390000/8542390000/8542390000/8542390000
- ECCN Code :
- EAR99
- Seated Height-Max :
- 1.1 mm
- Time@Peak Reflow Temperature-Max (s) :
- 40
- Time Format :
- HH:MM:SS (12/24 hr)
- Power Supplies :
- 2/5V
- Brand :
- Microchip Technology / Atmel
- Minimum Operating Temperature :
- - 40 C
- Radiation Hardening :
- No
- JESD-30 Code :
- S-PDSO-G8
- Maximum Operating Temperature :
- + 85 C
- Memory Size :
- 64B
- Terminal Pitch :
- 0.65mm
- Peak Reflow Temperature (Cel) :
- 260
- Package Shape :
- Square
- Series :
- Automotive, AEC-Q100
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Terminal Finish :
- Matte Tin (Sn) - annealed
- Features :
- Alarm, Leap Year, Square Wave Output, SRAM
- Base Part Number :
- MCP7940N
- Manufacturer :
- Microchip
- Operating Temperature :
- -40°C~85°C
- Terminal Form :
- Gull wing
- Information Access Method :
- I2C
- Length :
- 3mm
- Supplier Package :
- MSOP
- Width :
- 3mm
- Min Operating Temperature :
- -40 °C
- Package :
- Tape and Reel (TR);Cut Tape (CT);Digi-Reel®;
- Screening Level :
- Industrial
- Bus Type :
- Serial I2C
- RoHS Status :
- ROHS3 Compliant
- Max Operating Temperature :
- 85 °C
- Interface :
- I2C, 2-Wire Serial
- Mounting :
- Surface Mount
- Logic Function :
- Clock
- Feature :
- Alarm, Leap Year, Square Wave Output, SRAM
- Supplier Device Package :
- 8-MSOP
- Number of Pins :
- 8
- uPs/uCs/Peripheral ICs Type :
- TIMER, REAL TIME CLOCK
- Mounting Style :
- SMD/SMT
- Lifecycle Status :
- Production (Last Updated: 2 years ago)
- Factory Lead Time :
- 7 Weeks
- Qualification Status :
- Not Qualified
- Clock Frequency :
- 0.032MHz
- Voltage - Supply :
- 1.8V~5.5V
- Interrupt Capability :
- Y
- RoHS :
- Details
- Number of Terminations :
- 8
- Volatile :
- yes
- Max Supply Voltage :
- 5.5 V
- Product Status :
- Active
- Supply Voltage :
- 2.5V
- Voltage - Supply, Battery :
- 1.3V~5.5V
- Height Seated (Max) :
- 1.1mm
- Packaging :
- Tape and Reel (TR)
- HTS Code :
- 8542.39.00.01
- Surface Mount :
- yes
- Published :
- 2012
- Mounting Type :
- Surface Mount
- Mount :
- Surface Mount
- Package / Case :
- 8-TSSOP, 8-MSOP (0.118, 3.00mm Width)
- Battery Backup Switching :
- Backup Switching
- Date Format :
- YY-MM-DD-dd
- Function :
- Clock/Calendar/Alarm/Battery Backup
- Current - Timekeeping (Max) :
- 1.2μA @ 3.3V
- Pin Count :
- 8
- Reach Compliance Code :
- Compliant
- Base Product Number :
- MCP7940
- Type :
- Clock/Calendar
- JESD-609 Code :
- e3
- Terminal Position :
- Dual
- Min Supply Voltage :
- 1.8 V
- Time-Min :
- SECONDS
- Number of Terminals :
- 8
- Temperature Grade :
- Industrial
- Operating Supply Voltage :
- 2.5, 3.3, 5 V
- Product Type :
- Real Time Clocks
- Datasheets
- MCP7940NT-I/MS

Real Time Clocks Microchip Technology MCP7940NT-I/MS Overview
The MCP7940NT-I/MS from Microchip Technology is a highly integrated Real Time Clock/Calendar optimized for effective time tracking and data logging solutions. This IC provides full clock/calendar functionalities with seconds, minutes, hours, day, date, month, and year information. The incorporation of a digital trimming feature enhances accuracy and compensates for crystal frequency drifts, making it ideal for long-term precise applications. Designed in an 8-MSOP package, this device includes additional features such as battery switchover and a unique ID, positioning it as a critical component for advanced time-based applications in a variety of industrial settings.
MCP7940NT-I/MS Features
The MCP7940NT-I/MS IC stands out with its I2C interface, providing straightforward integration into existing systems with minimal I/O usage. It features an on-chip digital trimming/calibration circuit which can be used to adjust the clock frequency, ensuring high accuracy. Additionally, the device supports battery backup capability which maintains timekeeping in the absence of main power. An EEPROM is included for storing data or device configuration settings, enhancing the versatility and reliability of this component.
MCP7940NT-I/MS Applications
- Consumer Electronics: Employed in smart home devices, such as smart thermostats and security systems, where accurate timekeeping is crucial to perform scheduled tasks.
- Industrial Systems: Used in factory automation and control systems to manage operational schedules and maintain precise logs of activities based on time-stamped events.
- Telecommunication: Integral in network infrastructure, like servers and routers, to provide time stamps for data packets, aiding in network time synchronization and troubleshooting.
- Portable Medical Devices: Utilized in devices such as portable glucose monitors and blood pressure meters where the time stamping of readings is critical for patient monitoring and medical record keeping.
- Automotive: Applied in systems that require time logging and real-time system monitoring, enhancing navigation and vehicle control systems.
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