MPNHarborRFQ 0
MCP7940NT-I/SN representative package visual — not an exact-product photograph
Representative package visual — not an exact-product photographProduct referenceVendor-delivered DigiKey product/package image
Exact MPN18 sourced attributes1 source document

Microchip Technology · exact orderable part

MCP7940NT-I/SN

IC RTC CLK/CALENDAR I2C 8SOIC

Type
Clock/Calendar
Interface
I2C, 2-Wire Serial
Time Format
HH:MM:SS (12/24 hr)
Date Format
YY-MM-DD-dd
Voltage - Supply
1.8V ~ 5.5V
Voltage - Supply, Battery
1.3V ~ 5.5V
Current - Timekeeping (Max)
1.2µA @ 3.3V
Features
Alarm, Leap Year, Square Wave Output, SRAM
DigiKey Programmable
Not Verified
Original manufacturerCommercial terms confirmed per lot
ManufacturerMicrochip Technology
Package / case8-SOIC (0.154", 3.90mm Width)
Mounting typeSurface Mount
PackingTape & Reel (TR) Cut Tape (CT) Digi-Reel®

Technical parameters

Technical specifications

18 normalized values · 1 validated source

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ParameterValue
Base Product NumberMCP7940 [1]
Current - Timekeeping (Max)1.2µA @ 3.3V [1]
Date FormatYY-MM-DD-dd [1]
FeaturesAlarm, Leap Year, Square Wave Output, SRAM [1]
DigiKey ProgrammableNot Verified [1]
InterfaceI2C, 2-Wire Serial [1]
MfrMicrochip Technology [1]
Memory Size64B [1]
GradeAutomotive [1]
Mounting TypeSurface Mount [1]
Operating Temperature-40°C ~ 85°C [1]
Product StatusActive [1]
Time FormatHH:MM:SS (12/24 hr) [1]
TypeClock/Calendar [1]
Voltage - Supply1.8V ~ 5.5V [1]
Package / Case8-SOIC (0.154", 3.90mm Width) [1]
QualificationAEC-Q100 [1]
Voltage - Supply, Battery1.3V ~ 5.5V [1]
Specification references[1]Microchip Technology MCP7940NT-I/SN vendor product record ↗

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ManufacturerMicrochip TechnologyView brand page →CategoryReal Time ClocksView category page →

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