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Microchip Technology MCP7940N-I/SN Microcontrollers

IC RTC CLK/CALENDAR I2C 8SOIC

3,797 ActiveMicrochip TechnologyMCP7940NSOIC-8$0.69
MCP7940N-I/SN SOIC-8 package illustration

Same model may have multiple batches, images only for reference.

MCP7940N-I/SN
Part Number (MPN)
MCP7940N-I/SN
Base Model
Detailed Description
IC RTC CLK/CALENDAR I2C 8SOIC
Package
SOIC-8
Lifecycle Status
Active
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Ordering Code Family

MCP7940N groups multiple orderable suffixes under one base device. Compare package, grade, and reel options on the base-number page before substituting within the family.

5 ordering variants listed on the family page.

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Technical Specifications

Microchip Technology MCP7940N-I/SN Microcontrollers technical specifications.

General

RoHS
Yes
Mounting Type
SMD/SMT
Supply Voltage
1.8 V ~ 5.5 V
Rtc Bus Interface
Serial, 2-Wire, I2C
Date Format
YY-MM-DD-dd
Time Format
HH:MM:SS (12 hr, 24 hr)
Rtc Memory Size
64 B
Battery Backup Switching
Backup Switching
Minimum Operating Temperature C
- 40
Maximum Operating Temperature C
+ 85

Alternate Parts Comparison (MCP7940N-I/SN vs MCP7940N-I/P vs MCP7940N-E/MS vs MCP7940N-I/ST)

Side-by-side technical parameter comparison of related primary models in this product family.

This PartAlternate PartsAlternate PartsAlternate Parts
Mounting TypeSMD/SMTThrough HoleSurface MountSurface Mount
Supply Voltage1.8 V ~ 5.5 V1.8V ~ 5.5V1.8V ~ 5.5V1.8V ~ 5.5V
RoHSYesYesYesYes
Date FormatYY-MM-DD-ddYY-MM-DD-ddYY-MM-DD-ddYY-MM-DD-dd
PackageSOIC-8PDIP-88-TSSOPTSSOP-8
Time FormatHH:MM:SS (12 hr, 24 hr)HH:MM:SS (12/24 hr)HH:MM:SS (12/24 hr)HH:MM:SS (12/24 hr)
Battery Backup SwitchingBackup SwitchingBackup Switching--Backup Switching
FunctionAlarm, Calendar, ClockAlarm, Calendar, Clock--Alarm, Calendar, Clock
Rtc Bus InterfaceSerial, 2-Wire, I2CSerial, 2-Wire, I2C--Serial, 2-Wire, I2C
Rtc Memory Size64 B64 B--64 B
Unit Weight0.019048 oz0.032805 oz--0.005573 oz
Package / Case--8-DIP8-TSSOP8-TSSOP
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