MCP7940NT-E/SN
- Mfr.Part #
- MCP7940NT-E/SN
- Manufacturer
- Microchip Technology
- Package / Case
- 8-SOIC (0.154, 3.90mm Width)
- Datasheet
- Download
- Description
- IC RTC CLK/CALENDAR I2C 8-SOIC
- Stock
- 73,065
- In Stock :
- 73,065
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- Manufacturer :
- Microchip Technology
- Product Category :
- Real Time Clocks
- RoHS Status :
- ROHS3 Compliant
- Manufacturer :
- Microchip
- Time-Min :
- SECONDS
- Interface :
- I2C, 2-Wire Serial
- Number of Pins :
- 8
- ECCN Code :
- EAR99
- Mounting :
- Surface Mount
- Base Part Number :
- MCP7940N
- Peak Reflow Temperature (Cel) :
- 260
- JESD-609 Code :
- e3
- uPs/uCs/Peripheral ICs Type :
- TIMER, REAL TIME CLOCK
- Function :
- Clock/Calendar/Alarm/Battery Backup
- Surface Mount :
- yes
- Pin Count :
- 8
- HTS Code :
- 8542.39.00.01
- Package :
- Tape and Reel (TR);Cut Tape (CT);Digi-Reel®;
- Terminal Finish :
- Matte Tin (Sn) - annealed
- Width :
- 3.9mm
- Mounting Type :
- Surface Mount
- Date Format :
- YY-MM-DD-dd
- Memory Size :
- 64B
- Power Supplies :
- 2/5V
- Supplier Package :
- SOIC
- Feature :
- Alarm, Leap Year, Square Wave Output, SRAM
- Mounting Style :
- SMD/SMT
- Supplier Device Package :
- 8-SOIC
- Voltage - Supply :
- 1.8V~5.5V
- Logic Function :
- Clock
- Operating Temperature :
- -40°C~125°C
- Supply Voltage :
- 2.5V
- Factory Lead Time :
- 6 Weeks
- Minimum Operating Temperature :
- - 40 C
- Published :
- 2012
- Features :
- Alarm, Leap Year, Square Wave Output, SRAM
- Number of Terminations :
- 8
- Packaging :
- Tape and Reel (TR)
- Package Shape :
- RECTANGULAR
- Qualification Status :
- Not Qualified
- Product Type :
- Real Time Clocks
- Radiation Hardening :
- No
- Length :
- 4.9mm
- Number of Timers :
- 1
- Battery Backup Switching :
- Backup Switching
- Screening Level :
- TS 16949
- Operating Supply Current :
- 300 uA
- Package / Case :
- 8-SOIC (0.154, 3.90mm Width)
- Maximum Operating Temperature :
- + 125 C
- Information Access Method :
- I2C
- Terminal Form :
- Gull wing
- Interrupt Capability :
- Y
- Current - Timekeeping (Max) :
- 1.2μA @ 3.3V
- Terminal Position :
- Dual
- JESD-30 Code :
- R-PDSO-G8
- Brand :
- Microchip Technology
- Product Category :
- Real Time Clock
- Voltage - Supply, Battery :
- 1.3V~5.5V
- RoHS :
- Details
- Volatile :
- No
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Number of Terminals :
- 8
- Type :
- Clock/Calendar
- Time Format :
- HH:MM:SS (12/24 hr)
- Series :
- Automotive, AEC-Q100
- Seated Height-Max :
- 1.75 mm
- Time@Peak Reflow Temperature-Max (s) :
- 40
- Operating Supply Voltage :
- 2.5, 3.3, 5 V
- Temperature Grade :
- Automotive
- Product Status :
- Active
- Terminal Pitch :
- 1.27mm
- Height Seated (Max) :
- 1.75mm
- Reach Compliance Code :
- Compliant
- Bus Type :
- Serial I2C
- Base Product Number :
- MCP7940
- Datasheets
- MCP7940NT-E/SN

Real Time Clocks Microchip Technology MCP7940NT-E/SN Overview
The MCP7940NT-E/SN, manufactured by Microchip Technology, is a high-performance Real Time Clock/Calendar component, pivotal in time-based applications where accuracy and reliability are critical. This IC integrates seamlessly into various microcontroller environments through its I2C interface, providing precise time and date tracking, enhanced by a robust feature set including battery backup capabilities and programmable alarms. Its compact 8SOIC package ensures minimal footprint on designs, making it an excellent choice for space-constrained applications. Employing the Real Time Clocks Microchip Technology MCP7940NT-E/SN enhances system reliability and functionality, ensuring accurate timing solutions tailored for sophisticated electronics.
MCP7940NT-E/SN Features
The MCP7940NT-E/SN includes several key features that make it an optimal choice for integrating into advanced electronic systems:
- Real-time clock/calendar tracks time in hours, minutes, and seconds, and the date in days, months, and years.
- I2C interface allows for simple integration with most microcontrollers, facilitating easy communication.
- Battery-backed operation ensures timekeeping continues even during power outages.
- Digital trimming feature for adjusting the oscillator, improving accuracy over time and temperature.
- Programmable alarms that can trigger on both date and time, enhancing the application's capability to respond to specific events.
- Automatic leap year compensation until 2399, requiring minimal manual adjustments over the product’s lifespan.
MCP7940NT-E/SN Applications
- Consumer Electronics
Utilized in devices such as smart watches, cameras, and home automation systems to manage operational timelines and improve user interfaces.
- Industrial Systems
Employs time-stamping functionalities for logging events, monitoring systems, and managing scheduled maintenance in industrial automation and machinery.
- Networking
Ensures precise timekeeping in network hardware like routers and switches, crucial for time-sensitive data logging and network management.
- Portable Devices
Provides reliable time functionality in portable medical devices, enhancing data accuracy for patient monitoring and treatments.
- Automotive Electronics
Used in vehicle telematics systems to provide accurate timestamping of events and enhance navigation and infotainment systems.
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