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