Microchip Technology Products - Clock/Timing - Real Time Clocks

MCP79402-I/SN
Microchip Technology

IC RTC CLK/CALENDAR I2C 8-SOIC

Package: 8-SOIC (0.154", 3.90mm Width)

Stock7,312
MCP7940N-I/P
Microchip Technology

IC RTC CLK/CALENDAR I2C 8DIP

Package: 8-DIP (0.300", 7.62mm)

Stock4,720
MCP7940N-E/SN
Microchip Technology

IC RTC CLK/CALENDAR I2C 8-SOIC

Package: 8-SOIC (0.154", 3.90mm Width)

Stock9,456
MCP7940N-I/ST
Microchip Technology

IC RTC CLK/CALENDAR I2C 8-TSSOP

Package: 8-TSSOP (0.173", 4.40mm Width)

Stock6,852
MCP7940M-I/MS
Microchip Technology

IC RTC CLK/CALENDAR I2C 8-MSOP

Package: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Stock16,404
MCP7940M-I/SN
Microchip Technology

IC RTC CLK/CALENDAR I2C 8-SOIC

Package: 8-SOIC (0.154", 3.90mm Width)

Stock7,740
MCP795W12-I/SL
Microchip Technology

IC RTC CLK/CALENDAR SPI 14-SOIC

Package: 14-SOIC (0.154", 3.90mm Width)

Stock12,192
MCP79410T-I/SN
Microchip Technology

IC RTC CLK/CALENDAR I2C 8-SOIC

Package: 8-SOIC (0.154", 3.90mm Width)

Stock36,000
MCP7940NT-I/MNY
Microchip Technology

IC RTC CLK/CALENDAR I2C 8-TDFN

Package: 8-WFDFN Exposed Pad

Stock3,200
MCP7940NT-I/SN
Microchip Technology

IC RTC CLK/CALENDAR I2C 8-SOIC

Package: 8-SOIC (0.154", 3.90mm Width)

Stock3,328
MCP795W20-I/SL
Microchip Technology

IC RTC CLK/CALENDAR SPI 14-SOIC

Package: 14-SOIC (0.154", 3.90mm Width)

Stock5,392
MCP795W10-I/SL
Microchip Technology

IC RTC CLK/CALENDAR SPI 14-SOIC

Package: 14-SOIC (0.154", 3.90mm Width)

Stock6,912
MCP79521-I/MS
Microchip Technology

IC RTC CLK/CALENDAR SPI 10-MSOP

Package: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

Stock15,066
MCP79400-I/SN
Microchip Technology

IC RTC CLK/CALENDAR I2C 8-SOIC

Package: 8-SOIC (0.154", 3.90mm Width)

Stock12,774
MCP79520-I/MS
Microchip Technology

IC RTC CLK/CALENDAR SPI 10-MSOP

Package: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

Stock34,740
MCP79511-I/MS
Microchip Technology

IC RTC CLK/CALENDAR SPI 10-MSOP

Package: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

Stock35,844
MCP79510-I/MS
Microchip Technology

IC RTC CLK/CALENDAR SPI 10-MSOP

Package: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

Stock31,404
MCP79411-I/MS
Microchip Technology

IC RTC CLK/CALENDAR I2C 8-MSOP

Package: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Stock168,918
MCP79411-I/SN
Microchip Technology

IC RTC CLK/CALENDAR I2C 8-SOIC

Package: 8-SOIC (0.154", 3.90mm Width)

Stock22,434
MCP79412-I/SN
Microchip Technology

IC RTC CLK/CALENDAR I2C 8-SOIC

Package: 8-SOIC (0.154", 3.90mm Width)

Stock6,144

Part Number	Manufacturer	Description	Package	Stock	Features	Memory Size	Time Format	Date Format	Interface	Voltage - Supply	Voltage - Supply, Battery	Current - Timekeeping (Max)	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package
MCP79402-I/SN	Microchip Technology	IC RTC CLK/CALENDAR I2C 8-SOIC Type: Clock/Calendar Features: Alarm, Leap Year, Square Wave Output, SRAM, Unique ID Memory Size: 64B Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 1.8 V ~ 5.5 V Voltage - Supply, Battery: 1.3 V ~ 5.5 V Current - Timekeeping (Max): 1.2µA (Typ) @ 3.3V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 8-SOIC (0.154", 3.90mm Width) Supplier Device Package: 8-SOIC	Package: 8-SOIC (0.154", 3.90mm Width)	Stock7,312	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8 V ~ 5.5 V	1.3 V ~ 5.5 V	1.2µA (Typ) @ 3.3V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
MCP7940N-I/P	Microchip Technology	IC RTC CLK/CALENDAR I2C 8DIP Type: Clock/Calendar Features: Alarm, Leap Year, Square Wave Output, SRAM Memory Size: 64B Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 1.8 V ~ 5.5 V Voltage - Supply, Battery: 1.3 V ~ 5.5 V Current - Timekeeping (Max): 1.2µA @ 3.3V Operating Temperature: -40°C ~ 85°C Mounting Type: Through Hole Package / Case: 8-DIP (0.300", 7.62mm) Supplier Device Package: 8-PDIP	Package: 8-DIP (0.300", 7.62mm)	Stock4,720	Alarm, Leap Year, Square Wave Output, SRAM	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8 V ~ 5.5 V	1.3 V ~ 5.5 V	1.2µA @ 3.3V	-40°C ~ 85°C	Through Hole	8-DIP (0.300", 7.62mm)	8-PDIP
MCP7940N-E/SN	Microchip Technology	IC RTC CLK/CALENDAR I2C 8-SOIC Type: Clock/Calendar Features: Alarm, Leap Year, Square Wave Output, SRAM Memory Size: 64B Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 1.8 V ~ 5.5 V Voltage - Supply, Battery: 1.3 V ~ 5.5 V Current - Timekeeping (Max): 1.2µA @ 3.3V Operating Temperature: -40°C ~ 125°C Mounting Type: Surface Mount Package / Case: 8-SOIC (0.154", 3.90mm Width) Supplier Device Package: 8-SOIC	Package: 8-SOIC (0.154", 3.90mm Width)	Stock9,456	Alarm, Leap Year, Square Wave Output, SRAM	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8 V ~ 5.5 V	1.3 V ~ 5.5 V	1.2µA @ 3.3V	-40°C ~ 125°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
MCP7940N-I/ST	Microchip Technology	IC RTC CLK/CALENDAR I2C 8-TSSOP Type: Clock/Calendar Features: Alarm, Leap Year, Square Wave Output, SRAM Memory Size: 64B Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 1.8 V ~ 5.5 V Voltage - Supply, Battery: 1.3 V ~ 5.5 V Current - Timekeeping (Max): 1.2µA @ 3.3V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 8-TSSOP (0.173", 4.40mm Width) Supplier Device Package: 8-TSSOP	Package: 8-TSSOP (0.173", 4.40mm Width)	Stock6,852	Alarm, Leap Year, Square Wave Output, SRAM	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8 V ~ 5.5 V	1.3 V ~ 5.5 V	1.2µA @ 3.3V	-40°C ~ 85°C	Surface Mount	8-TSSOP (0.173", 4.40mm Width)	8-TSSOP
MCP7940M-I/MS	Microchip Technology	IC RTC CLK/CALENDAR I2C 8-MSOP Type: Clock/Calendar Features: Alarm, Leap Year, Square Wave Output, SRAM Memory Size: 64B Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 1.8 V ~ 5.5 V Voltage - Supply, Battery: - Current - Timekeeping (Max): 1µA @ 5.5V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Supplier Device Package: 8-MSOP	Package: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Stock16,404	Alarm, Leap Year, Square Wave Output, SRAM	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8 V ~ 5.5 V	-	1µA @ 5.5V	-40°C ~ 85°C	Surface Mount	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-MSOP
MCP7940M-I/SN	Microchip Technology	IC RTC CLK/CALENDAR I2C 8-SOIC Type: Clock/Calendar Features: Alarm, Leap Year, Square Wave Output, SRAM Memory Size: 64B Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 1.8 V ~ 5.5 V Voltage - Supply, Battery: - Current - Timekeeping (Max): 1µA @ 5.5V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 8-SOIC (0.154", 3.90mm Width) Supplier Device Package: 8-SOIC	Package: 8-SOIC (0.154", 3.90mm Width)	Stock7,740	Alarm, Leap Year, Square Wave Output, SRAM	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8 V ~ 5.5 V	-	1µA @ 5.5V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
MCP795W12-I/SL	Microchip Technology	IC RTC CLK/CALENDAR SPI 14-SOIC Type: Clock/Calendar Features: Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer Memory Size: 64B Time Format: HH:MM:SS:hh (12/24 hr) Date Format: YY-MM-DD-dd Interface: SPI Voltage - Supply: 1.8 V ~ 3.6 V Voltage - Supply, Battery: 1.3 V ~ 3.6 V Current - Timekeeping (Max): 1µA @ 1.8V ~ 5.5V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 14-SOIC (0.154", 3.90mm Width) Supplier Device Package: 14-SOIC	Package: 14-SOIC (0.154", 3.90mm Width)	Stock12,192	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8 V ~ 3.6 V	1.3 V ~ 3.6 V	1µA @ 1.8V ~ 5.5V	-40°C ~ 85°C	Surface Mount	14-SOIC (0.154", 3.90mm Width)	14-SOIC
MCP79410T-I/SN	Microchip Technology	IC RTC CLK/CALENDAR I2C 8-SOIC Type: Clock/Calendar Features: Alarm, Leap Year, Square Wave Output, SRAM, Unique ID Memory Size: 64B, 1Kb Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 1.8 V ~ 5.5 V Voltage - Supply, Battery: 1.3 V ~ 5.5 V Current - Timekeeping (Max): 1.2µA @ 3.3V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 8-SOIC (0.154", 3.90mm Width) Supplier Device Package: 8-SOIC	Package: 8-SOIC (0.154", 3.90mm Width)	Stock36,000	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B, 1Kb	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8 V ~ 5.5 V	1.3 V ~ 5.5 V	1.2µA @ 3.3V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
MCP7940NT-I/MNY	Microchip Technology	IC RTC CLK/CALENDAR I2C 8-TDFN Type: Clock/Calendar Features: Alarm, Leap Year, Square Wave Output, SRAM Memory Size: 64B Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 1.8 V ~ 5.5 V Voltage - Supply, Battery: 1.3 V ~ 5.5 V Current - Timekeeping (Max): 1.2µA @ 3.3V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 8-WFDFN Exposed Pad Supplier Device Package: 8-TDFN (2x3)	Package: 8-WFDFN Exposed Pad	Stock3,200	Alarm, Leap Year, Square Wave Output, SRAM	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8 V ~ 5.5 V	1.3 V ~ 5.5 V	1.2µA @ 3.3V	-40°C ~ 85°C	Surface Mount	8-WFDFN Exposed Pad	8-TDFN (2x3)
MCP7940NT-I/SN	Microchip Technology	IC RTC CLK/CALENDAR I2C 8-SOIC Type: Clock/Calendar Features: Alarm, Leap Year, Square Wave Output, SRAM Memory Size: 64B Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 1.8 V ~ 5.5 V Voltage - Supply, Battery: 1.3 V ~ 5.5 V Current - Timekeeping (Max): 1.2µA @ 3.3V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 8-SOIC (0.154", 3.90mm Width) Supplier Device Package: 8-SOIC	Package: 8-SOIC (0.154", 3.90mm Width)	Stock3,328	Alarm, Leap Year, Square Wave Output, SRAM	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8 V ~ 5.5 V	1.3 V ~ 5.5 V	1.2µA @ 3.3V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
MCP795W20-I/SL	Microchip Technology	IC RTC CLK/CALENDAR SPI 14-SOIC Type: Clock/Calendar Features: Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Watchdog Timer Memory Size: 64B Time Format: HH:MM:SS:hh (12/24 hr) Date Format: YY-MM-DD-dd Interface: SPI Voltage - Supply: 1.8 V ~ 3.6 V Voltage - Supply, Battery: 1.3 V ~ 3.6 V Current - Timekeeping (Max): 1µA @ 1.8V ~ 5.5V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 14-SOIC (0.154", 3.90mm Width) Supplier Device Package: 14-SOIC	Package: 14-SOIC (0.154", 3.90mm Width)	Stock5,392	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Watchdog Timer	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8 V ~ 3.6 V	1.3 V ~ 3.6 V	1µA @ 1.8V ~ 5.5V	-40°C ~ 85°C	Surface Mount	14-SOIC (0.154", 3.90mm Width)	14-SOIC
MCP795W10-I/SL	Microchip Technology	IC RTC CLK/CALENDAR SPI 14-SOIC Type: Clock/Calendar Features: Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Watchdog Timer Memory Size: 64B Time Format: HH:MM:SS:hh (12/24 hr) Date Format: YY-MM-DD-dd Interface: SPI Voltage - Supply: 1.8 V ~ 3.6 V Voltage - Supply, Battery: 1.3 V ~ 3.6 V Current - Timekeeping (Max): 1µA @ 1.8V ~ 5.5V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 14-SOIC (0.154", 3.90mm Width) Supplier Device Package: 14-SOIC	Package: 14-SOIC (0.154", 3.90mm Width)	Stock6,912	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Watchdog Timer	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8 V ~ 3.6 V	1.3 V ~ 3.6 V	1µA @ 1.8V ~ 5.5V	-40°C ~ 85°C	Surface Mount	14-SOIC (0.154", 3.90mm Width)	14-SOIC
MCP79521-I/MS	Microchip Technology	IC RTC CLK/CALENDAR SPI 10-MSOP Type: Clock/Calendar Features: Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID Memory Size: 64B Time Format: HH:MM:SS:hh (12/24 hr) Date Format: YY-MM-DD-dd Interface: SPI Voltage - Supply: 1.8 V ~ 3.6 V Voltage - Supply, Battery: 1.3 V ~ 3.6 V Current - Timekeeping (Max): 1µA @ 1.8V ~ 3.6V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Supplier Device Package: 10-MSOP	Package: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	Stock15,066	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8 V ~ 3.6 V	1.3 V ~ 3.6 V	1µA @ 1.8V ~ 3.6V	-40°C ~ 85°C	Surface Mount	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-MSOP
MCP79400-I/SN	Microchip Technology	IC RTC CLK/CALENDAR I2C 8-SOIC Type: Clock/Calendar Features: Alarm, Leap Year, Square Wave Output, SRAM, Unique ID Memory Size: 64B Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 1.8 V ~ 5.5 V Voltage - Supply, Battery: 1.3 V ~ 5.5 V Current - Timekeeping (Max): 1.2µA (Typ) @ 3.3V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 8-SOIC (0.154", 3.90mm Width) Supplier Device Package: 8-SOIC	Package: 8-SOIC (0.154", 3.90mm Width)	Stock12,774	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8 V ~ 5.5 V	1.3 V ~ 5.5 V	1.2µA (Typ) @ 3.3V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
MCP79520-I/MS	Microchip Technology	IC RTC CLK/CALENDAR SPI 10-MSOP Type: Clock/Calendar Features: Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID Memory Size: 64B Time Format: HH:MM:SS:hh (12/24 hr) Date Format: YY-MM-DD-dd Interface: SPI Voltage - Supply: 1.8 V ~ 3.6 V Voltage - Supply, Battery: 1.3 V ~ 3.6 V Current - Timekeeping (Max): 1µA @ 1.8V ~ 3.6V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Supplier Device Package: 10-MSOP	Package: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	Stock34,740	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8 V ~ 3.6 V	1.3 V ~ 3.6 V	1µA @ 1.8V ~ 3.6V	-40°C ~ 85°C	Surface Mount	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-MSOP
MCP79511-I/MS	Microchip Technology	IC RTC CLK/CALENDAR SPI 10-MSOP Type: Clock/Calendar Features: Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID Memory Size: 64B Time Format: HH:MM:SS:hh (12/24 hr) Date Format: YY-MM-DD-dd Interface: SPI Voltage - Supply: 1.8 V ~ 3.6 V Voltage - Supply, Battery: 1.3 V ~ 3.6 V Current - Timekeeping (Max): 1µA @ 1.8V ~ 3.6V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Supplier Device Package: 10-MSOP	Package: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	Stock35,844	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8 V ~ 3.6 V	1.3 V ~ 3.6 V	1µA @ 1.8V ~ 3.6V	-40°C ~ 85°C	Surface Mount	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-MSOP
MCP79510-I/MS	Microchip Technology	IC RTC CLK/CALENDAR SPI 10-MSOP Type: Clock/Calendar Features: Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID Memory Size: 64B Time Format: HH:MM:SS:hh (12/24 hr) Date Format: YY-MM-DD-dd Interface: SPI Voltage - Supply: 1.8 V ~ 3.6 V Voltage - Supply, Battery: 1.3 V ~ 3.6 V Current - Timekeeping (Max): 1µA @ 1.8V ~ 3.6V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Supplier Device Package: 10-MSOP	Package: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	Stock31,404	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8 V ~ 3.6 V	1.3 V ~ 3.6 V	1µA @ 1.8V ~ 3.6V	-40°C ~ 85°C	Surface Mount	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-MSOP
MCP79411-I/MS	Microchip Technology	IC RTC CLK/CALENDAR I2C 8-MSOP Type: Clock/Calendar Features: Alarm, Leap Year, Square Wave Output, SRAM, Unique ID Memory Size: 64B, 1Kb Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 1.8 V ~ 5.5 V Voltage - Supply, Battery: 1.3 V ~ 5.5 V Current - Timekeeping (Max): 1.2µA @ 3.3V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Supplier Device Package: 8-MSOP	Package: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Stock168,918	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B, 1Kb	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8 V ~ 5.5 V	1.3 V ~ 5.5 V	1.2µA @ 3.3V	-40°C ~ 85°C	Surface Mount	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-MSOP
MCP79411-I/SN	Microchip Technology	IC RTC CLK/CALENDAR I2C 8-SOIC Type: Clock/Calendar Features: Alarm, Leap Year, Square Wave Output, SRAM, Unique ID Memory Size: 64B, 1Kb Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 1.8 V ~ 5.5 V Voltage - Supply, Battery: 1.3 V ~ 5.5 V Current - Timekeeping (Max): 1.2µA @ 3.3V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 8-SOIC (0.154", 3.90mm Width) Supplier Device Package: 8-SOIC	Package: 8-SOIC (0.154", 3.90mm Width)	Stock22,434	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B, 1Kb	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8 V ~ 5.5 V	1.3 V ~ 5.5 V	1.2µA @ 3.3V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
MCP79412-I/SN	Microchip Technology	IC RTC CLK/CALENDAR I2C 8-SOIC Type: Clock/Calendar Features: Alarm, Leap Year, Square Wave Output, SRAM, Unique ID Memory Size: 64B, 1Kb Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 1.8 V ~ 5.5 V Voltage - Supply, Battery: 1.3 V ~ 5.5 V Current - Timekeeping (Max): 1.2µA @ 3.3V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 8-SOIC (0.154", 3.90mm Width) Supplier Device Package: 8-SOIC	Package: 8-SOIC (0.154", 3.90mm Width)	Stock6,144	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B, 1Kb	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8 V ~ 5.5 V	1.3 V ~ 5.5 V	1.2µA @ 3.3V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
MCP79410-I/ST	Microchip Technology	IC RTC CLK/CALENDAR I2C 8-TSSOP Type: Clock/Calendar Features: Alarm, Leap Year, Square Wave Output, SRAM, Unique ID Memory Size: 64B, 1Kb Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 1.8 V ~ 5.5 V Voltage - Supply, Battery: 1.3 V ~ 5.5 V Current - Timekeeping (Max): 1.2µA @ 3.3V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 8-TSSOP (0.173", 4.40mm Width) Supplier Device Package: 8-TSSOP	Package: 8-TSSOP (0.173", 4.40mm Width)	Stock51,588	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B, 1Kb	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8 V ~ 5.5 V	1.3 V ~ 5.5 V	1.2µA @ 3.3V	-40°C ~ 85°C	Surface Mount	8-TSSOP (0.173", 4.40mm Width)	8-TSSOP
MCP79410-I/SN	Microchip Technology	IC RTC CLK/CALENDAR I2C 8-SOIC Type: Clock/Calendar Features: Alarm, Leap Year, Square Wave Output, SRAM, Unique ID Memory Size: 64B, 1Kb Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 1.8 V ~ 5.5 V Voltage - Supply, Battery: 1.3 V ~ 5.5 V Current - Timekeeping (Max): 1.2µA @ 3.3V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 8-SOIC (0.154", 3.90mm Width) Supplier Device Package: 8-SOIC	Package: 8-SOIC (0.154", 3.90mm Width)	Stock5,216	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B, 1Kb	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8 V ~ 5.5 V	1.3 V ~ 5.5 V	1.2µA @ 3.3V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
MCP79410T-I/MNY	Microchip Technology	IC RTC CLK/CALENDAR I2C 8-TDFN Type: Clock/Calendar Features: Alarm, Leap Year, Square Wave Output, SRAM, Unique ID Memory Size: 64B, 1Kb Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 1.8 V ~ 5.5 V Voltage - Supply, Battery: 1.3 V ~ 5.5 V Current - Timekeeping (Max): 1.2µA @ 3.3V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 8-WFDFN Exposed Pad Supplier Device Package: 8-TDFN (2x3)	Package: 8-WFDFN Exposed Pad	Stock28,950	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B, 1Kb	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8 V ~ 5.5 V	1.3 V ~ 5.5 V	1.2µA @ 3.3V	-40°C ~ 85°C	Surface Mount	8-WFDFN Exposed Pad	8-TDFN (2x3)
MCP7940N-I/MS	Microchip Technology	IC RTC CLK/CALENDAR I2C 8-MSOP Type: Clock/Calendar Features: Alarm, Leap Year, Square Wave Output, SRAM Memory Size: 64B Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 1.8 V ~ 5.5 V Voltage - Supply, Battery: 1.3 V ~ 5.5 V Current - Timekeeping (Max): 1.2µA @ 3.3V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Supplier Device Package: 8-MSOP	Package: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Stock38,730	Alarm, Leap Year, Square Wave Output, SRAM	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8 V ~ 5.5 V	1.3 V ~ 5.5 V	1.2µA @ 3.3V	-40°C ~ 85°C	Surface Mount	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-MSOP
MCP7940N-I/SN	Microchip Technology	IC RTC CLK/CALENDAR I2C 8-SOIC Type: Clock/Calendar Features: Alarm, Leap Year, Square Wave Output, SRAM Memory Size: 64B Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 1.8 V ~ 5.5 V Voltage - Supply, Battery: 1.3 V ~ 5.5 V Current - Timekeeping (Max): 1.2µA @ 3.3V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 8-SOIC (0.154", 3.90mm Width) Supplier Device Package: 8-SOIC	Package: 8-SOIC (0.154", 3.90mm Width)	Stock5,808	Alarm, Leap Year, Square Wave Output, SRAM	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8 V ~ 5.5 V	1.3 V ~ 5.5 V	1.2µA @ 3.3V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
MCP7940MT-I/MNY	Microchip Technology	IC RTC CLK/CALENDAR I2C 8-TDFN Type: Clock/Calendar Features: Alarm, Leap Year, Square Wave Output, SRAM Memory Size: 64B Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 1.8 V ~ 5.5 V Voltage - Supply, Battery: - Current - Timekeeping (Max): 1µA @ 5.5V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 8-WFDFN Exposed Pad Supplier Device Package: 8-TDFN (2x3)	Package: 8-WFDFN Exposed Pad	Stock116,694	Alarm, Leap Year, Square Wave Output, SRAM	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8 V ~ 5.5 V	-	1µA @ 5.5V	-40°C ~ 85°C	Surface Mount	8-WFDFN Exposed Pad	8-TDFN (2x3)
MCP7940NT-E/SNVAO	Microchip Technology	IC RTC CAL I2C/2-WIRE SER 8SOIC Type: Clock/Calendar Features: Alarm, Leap Year, Square Wave Output, SRAM Memory Size: 64B Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I²C, 2-Wire Serial Voltage - Supply: 1.8V ~ 5.5V Voltage - Supply, Battery: 1.3V ~ 5.5V Current - Timekeeping (Max): 1.2µA @ 3.3V Operating Temperature: -40°C ~ 125°C Mounting Type: Surface Mount Package / Case: 8-SOIC (0.154", 3.90mm Width) Supplier Device Package: 8-SOIC	Package: 8-SOIC (0.154", 3.90mm Width)	Stock4,992	Alarm, Leap Year, Square Wave Output, SRAM	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 5.5V	1.2µA @ 3.3V	-40°C ~ 125°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
MCP7940MT-I/STVAO	Microchip Technology	IC RTC CAL I2C/2-WIRE SER 8TSSOP Type: Clock/Calendar Features: Alarm, Leap Year, Square Wave Output, SRAM Memory Size: 64B Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I²C, 2-Wire Serial Voltage - Supply: 1.8V ~ 5.5V Voltage - Supply, Battery: - Current - Timekeeping (Max): 1.2µA @ 3.3V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 8-TSSOP (0.173", 4.40mm Width) Supplier Device Package: 8-TSSOP	Package: 8-TSSOP (0.173", 4.40mm Width)	Stock7,152	Alarm, Leap Year, Square Wave Output, SRAM	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.8V ~ 5.5V	-	1.2µA @ 3.3V	-40°C ~ 85°C	Surface Mount	8-TSSOP (0.173", 4.40mm Width)	8-TSSOP