Clock/Timing - Real Time Clocks, Surface Mount, Alarm, Leap Year, Square Wave Output, SRAM, [

Part Number: MCP7940N-I/SN
Make: Microchip
133,700 In Stock.
Delivery in 5-9 Business Days
RoHS Compliant
100% Warrantied Inventory (ISO 9001:2015 Certified)
Buy on Term
Prompt Support
Short Lead Time

1) Battery-Backed I2C Real-Time Clock/Calendar with SRAM
2) Real-Time Clock/Calendar (RTCC)
3) On-Chip Digital Trimming/Calibration:
- ±1 PPM resolution
- ±129 PPM range
4) Power-Fail Time-Stamp:
- Time logged on switchover to and from Battery mode
5) 2-Wire Serial Interface, I2C Compatible:
- I2C clock rate up to 400 kHz

Specifications : MCP7940N-I/SN

Base Part Number MCP7940N
Categories Integrated Circuits (ICs)
Current - Timekeeping (Max) 1.2µA @ 3.3V
Date Format YY-MM-DD-dd
Features Alarm, Leap Year, Square Wave Output, SRAM
Interface I²C, 2-Wire Serial
Lead Free Status / RoHS Status Lead free / RoHS Compliant
Manufacturer Microchip Technology
Manufacturer Part Number MCP7940N-I/SN
Manufacturer Standard Lead Time 5 Weeks
Memory Size 64B
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Mounting Type Surface Mount
Operating Temperature -40°C ~ 85°C
Package / Case 8-SOIC (0.154", 3.90mm Width)
Packaging Tube
Series -
Standard Package 100
Supplier Device Package 8-SOIC
Time Format HH:MM:SS (12/24 hr)
Type Clock/Calendar
Voltage - Supply 1.8 V ~ 5.5 V
Voltage - Supply, Battery 1.3 V ~ 5.5 V
Alternate Parts MCP7940NT-I/SN
iodParts Shield
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Available Quantity: 133,700
Standard Package Quantity: 100
Packaging: Tube
Date Code: 17+

Alternate Part(s)