M41T83 real time clock Series

The M41T83 series from STMicroelectronics is a robust line of I2C-based real-time clocks (RTC) that includes calendar functionality, alarms, and battery backup. These devices are commonly used in embedded systems where accurate timekeeping and event scheduling are critical. If you're working on any project that requires precise timing and date tracking, these RTCs are a go-to solution.

One thing worth noting is their reliability. They offer excellent accuracy over a wide temperature range and have a built-in temperature-compensated crystal oscillator (TCXO) that helps maintain time accuracy even in varying environmental conditions. Engineers tend to reach for this when they need a stable and dependable RTC that can handle long-term operation without drifting significantly.

Another practical application is in battery-powered devices where maintaining the system clock is crucial. The M41T83 series has an internal backup battery that keeps the clock running even when the main power supply is off, ensuring that your system always knows what time it is. This is particularly useful in IoT devices, wearables, and other battery-operated gadgets where keeping track of time is essential for functionality and user experience.

Mfr Part #	Quantity Available	Price	Category	Standard Package	RAM Size	Voltage - Supply	Package / Case	Function	Date Format	Time Format	Bus Connection	Operating Temperature	Product Category	Factory Pack Quantity	Standard Package Name	RoHS	EU RoHS	Memory	Interface	Memory Size	Voltage Rating	Voltage - Supply (Min)	Voltage - Supply, Battery	Common Mode Transient Immunity (Min)	Packaging	Mounting Type	Mounting Style	Package Quantity	Number of Positions	Supplier Device Package	Type	Features	Other Names	Package Cooled	Product	Series	Manufacturer	Battery Series	Width	Height	Length	Size / Dimension	Programmable Features	Mechanical Life	Termination	Connector Usage	Main Purpose	Display Units	MOQ	Unit Pack	Automotive	Leadfree Defin	Data Rate	Crystal AR	Power - Max	Voltage - Input (Min)	Matchcode	Standard Leadtime	Rad Hardened	DELETED	Operating Temperature - Junction	Length - Overall	Shell Size - Insert	Printed Circuit Board	SVHC	Tariff No	Number of Outputs	Weight	Number of Pins	Material Finish	Format	Base Unit
3 M41T83SMY6F Real Time Clock Serial 32Byte 18-Pin SOX T/R IC RTC SERIAL W/BATT SW SOX18 Real Time Clock Serial I2C bus RTC IC RTC CLK/CALENDAR I2C 18-SOX stmicroelectronics	10	1: ¥16.74	-	Tape & Reel	32 byte	3.3\|5 V	18SOX	Clock/Calendar/Alarm/Timer/Interrupt	DW:DM:M:Y	HH:MM:SS:hh	Serial (2-Wire, I2C)	-40 to 85 °C	Real Time Clock	1000	SOX	Lead free / RoHS Compliant	Compliant	32 B	I²C, 2-Wire Serial	7B	3	5.5	2 V ~ 5.5 V	Industrial	Tape and Reel	Surface Mount	SMD/SMT	SOX	18	18-SOX	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	497-6886-1	-	Real Time Clocks	M41T83	STMicroelectronics	Backup Switching	-	-	-	-	-	-	-	I²C, 2-Wire Serial	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	YY-MM-DD-dd	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
3 M41T83RMY6E Real Time Clock Serial I2C bus RTC Real Time Clock Serial 32Byte 18-Pin SOX Tube IC RTC SERIAL W/BATT SW SOX18 M41T83RMY6E, Real Time Clock, Alarm, Calendar, Clock, 32B RAM, I2C, 2.7 to 5.5V, 18-Pin SOX STMicroelectronics	10	1: ¥17.816	-	44	32B	5.5 V	SOX	Clock, Calendar, Alarm, Timer Interrupt	DW:DM:M:Y	HH:MM:SS:hh	Serial (2-Wire, I2C)	+ 85 C	Real Time Clock	44	SOX	RoHS Compliant	Compliant	32 B	Serial	7B	2.7 V	5.5 V	2 V ~ 5.5 V	Industrial	Tray	Surface Mount	SMD/SMT	SOX	18	18-SOX	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	-	SOX	-	-	-	-	7.62mm	2.34mm	11.61mm	11.61 x 7.62 x 2.34mm	Alarm, Battery Backup, Calendar, Clock, Reset Output Circuitry, Switch Over, Watchdog Timer	Obsolete	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
3 M41T83SMY6E Real Time Clock Serial I2C bus RTC Real Time Clock Serial 32Byte 18-Pin SOX Tube IC RTC SERIAL W/BATT SW SOX18 M41T83SMY6E, Real Time Clock, Alarm, Calendar, Clock, 32B RAM, I2C, 3 to 5.5V, 18-Pin SOX STMicroelectronics	10	1: ¥16.74	-	44	32B	5.5 V	SOX	Clock, Calendar, Alarm, Timer Interrupt	DW:DM:M:Y	HH:MM:SS:hh	Serial (2-Wire, I2C)	+ 85 C	Real Time Clock	44	SOX	RoHS Compliant	Compliant	32 B	Serial	7B	3 V	5.5 V	2 V ~ 5.5 V	Industrial	Tray	Surface Mount	SMD/SMT	SOX	18	18-SOX	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	-	SOX	-	-	-	-	7.62mm	2.34mm	11.61mm	11.61 x 7.62 x 2.34mm	Alarm, Battery Backup, Calendar, Clock, Reset Output Circuitry, Switch Over, Watchdog Timer	Obsolete	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	11.61	2.34	18	-	-	-	-	-	-	-	-
3 M41T83ZMY6E Real Time Clock Serial I2C bus RTC Real Time Clock Serial 32Byte 18-Pin SOX Tube IC RTC SERIAL W/BATT SW SOX18 M41T83ZMY6E, Real Time Clock, Alarm, Calendar, Clock, 32B RAM, I2C, 2.38 to 5.5V, 18-Pin SOX STMicroelectronics	10	1: ¥17.816	-	44	32B	5.5 V	SOX	Clock, Calendar, Alarm, Timer Interrupt	DW:DM:M:Y	HH:MM:SS:hh	Serial (2-Wire, I2C)	+ 85 C	Real Time Clock	44	SOX	RoHS Compliant	Compliant	32 B	Serial	7B	2.38 V	5.5 V	2 V ~ 5.5 V	Industrial	Tray	Surface Mount	SMD/SMT	SOX	18	18-SOX	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	-	SOX	-	-	-	-	7.62mm	2.34mm	11.61mm	11.61 x 7.62 x 2.34mm	Alarm, Battery Backup, Calendar, Clock, Reset Output Circuitry, Switch Over, Watchdog Timer	Obsolete	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2 M41T83ZQA6F Real Time Clock Serial 32Byte 16-Pin VFQFPN T/R IC RTC SERIAL W/BATT SW 16QFN IC RTC SERIAL W/BATT SW 16-QFN Real Time Clock Serial I2C bus RTC stmicroelectronics	1479	1: ¥18.836	-	Tape & Reel	32 byte	2.5\|3.3\|5 V	16VFQFPN	Clock/Calendar/Alarm/Timer/Interrupt	DW:DM:M:Y	HH:MM:SS:hh	Serial (2-Wire, I2C)	-40 to 85 °C	Real Time Clock	1000	QFN	Lead free / RoHS Compliant	Compliant	32 B	I²C, 2-Wire Serial	7B	2.38	5.5	2 V ~ 5.5 V	Industrial	Tape and Reel	Surface Mount	SMD/SMT	VFQFPN	16	16-QFN (4x4)	RTC	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	497-6889-1	-	-	-	-	-	-	-	-	-	-	-	-40°C	-	-	-	1000	1000	NO	RoHS-conform	I2C	YES	85°C	2.38V	M41T83ZQA6F	15 weeks	-	-	-	-	-	-	-	-	-	-	-	-	-	-
5 M41T83SQA6F Real Time Clock Serial 32Byte 16-Pin VFQFPN T/R IC RTC SERIAL W/BATT SW 16QFN IC RTC SERIAL W/BATT SW 16-QFN Real Time Clock Serial I2C bus RTC IC, RTC I2C BUS, SMD, QFN-16 IC RTC CLK/CALENDAR I2C 16-QFN 实时时钟 (RTC), 实时时钟功能, 32B RAM, I2C总线, 3 → 5.5 V电源, 16针 QFN封装 stmicroelectronics	780	1: ¥18.836	-	Tape & Reel	32 byte	3.3\|5 V	16VFQFPN	Clock/Calendar/Alarm/Timer/Interrupt	DW:DM:M:Y	HH:MM:SS:hh	Serial (2-Wire, I2C)	-40 to 85 °C	Real Time Clock	1000	QFN	Lead free / RoHS Compliant	Compliant	32 B	I²C, 2-Wire Serial	7B	3	5.5	2 V ~ 5.5 V	Industrial	Tape and Reel	Surface Mount	SMD/SMT	VFQFPN	16	16-QFN (4x4)	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	497-6887-1	-	-	-	-	-	-	-	-	-	-	-	:SMD	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	:No SVHC (20-Jun-2013)	85423190	:5	0.0002	:16	:-	:12Hr / 24Hr	:41
3 M41T83ZMY6F Real Time Clock Serial 32Byte 18-Pin SOX T/R IC RTC SERIAL W/BATT SW SOX18 Real Time Clock Serial I2C bus RTC IC RTC CLK/CALENDAR I2C 18-SOX stmicroelectronics	1000	1000: ¥30.1929	-	Tape & Reel	32 byte	2.5\|3.3\|5 V	18SOX	Clock/Calendar/Alarm/Timer/Interrupt	DW:DM:M:Y	HH:MM:SS:hh	Serial (2-Wire, I2C)	-40 to 85 °C	Real Time Clock	1000	SOX	Lead free / RoHS Compliant	Compliant	32 B	I²C, 2-Wire Serial	7B	2.38	5.5 V	2 V ~ 5.5 V	Industrial	Tape and Reel	Surface Mount	SMD/SMT	SOX	18	18-SOX	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	497-6888-1	SOX	Real Time Clocks	M41T83	STMicroelectronics	Backup Switching	-	-	-	-	-	-	-	I²C, 2-Wire Serial	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	YY-MM-DD-dd	-	-	-	-	-	-	-	-	-	-	No	Compliant	85C	-	-	-	-	-	-	-	-	-	-	-
2 M41T83RQA6F Real Time Clock Serial 32Byte 16-Pin VFQFPN T/R IC RTC SER BATT SWITCH 16-VFQFPN Real Time Clock Battery Swtchovr-RTC stmicroelectronics	10	1: ¥19.6792	-	Cut Tape	32 byte	3.3\|5 V	16VFQFPN	Clock/Calendar/Alarm/Timer/Interrupt	DW:DM:M:Y	HH:MM:SS:hh	Serial (2-Wire, I2C)	-40 to 85 °C	Real Time Clock	1000	QFN	Lead free / RoHS Compliant	Compliant	32 B	I²C, 2-Wire Serial	7B	2.7	5.5	2 V ~ 5.5 V	Industrial	Tape and Reel	Surface Mount	SMD/SMT	VFQFPN	16	16-QFN (4x4)	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	497-5914-2	-	Real Time Clocks	M41T83	STMicroelectronics	Backup Switching	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2 M41T83RMY6F Real Time Clock Serial I2C bus RTC Real Time Clock Serial 32Byte 18-Pin SOX T/R IC RTC SERIAL W/BATT SW SOX18 STMicroelectronics	10	1: ¥16.74	-	1,000	32 B	2.7 V ~ 5.5 V	SOX18	Clock, Calendar, Alarm, Timer Interrupt	DW:DM:M:Y	HH:MM:SS:hh	Serial (2-Wire, I2C)	-40°C ~ 85°C	Real Time Clock	1000	SOX	Lead free / RoHS Compliant	Compliant	32 B	I²C, 2-Wire Serial	7B	2.7	2.7 V	2 V ~ 5.5 V	Industrial	Tape and Reel	Surface Mount	SMD/SMT	SOX	18	18-SOX	RTC	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	497-6885-1	SOX	-	-	-	-	-	-	-	-	-	-	-40°C	-	-	-	1000	1000	NO	RoHS-conform	I2C	YES	85°C	2.7V	M41T83RMY6F	15 weeks	No	Compliant	85C	-	-	-	-	-	-	-	-	-	-	-
M41T83RMY6F/BKN Real Time Clock Serial 32Byte 18-Pin SOX T/R stmicroelectronics	0		-	Cut Tape	32 byte	3.3\|5 V	18SOX	Clock/Calendar/Alarm/Timer/Interrupt	DW:DM:M:Y	HH:MM:SS:hh	Serial (2-Wire, I2C)	-40 to 85 °C	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

cigen-M41T83

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Documents & Media

Frequently Asked Questions

M41T83 real time clock - Part List

Other Names

Voltage Rating

Standard Package

Voltage - Supply

Package / Case

RAM Size

Voltage - Supply (Min)

Operating Temperature

Factory Pack Quantity

Standard Package Name

RoHS

Interface

Packaging

Package Quantity

Number of Positions

Supplier Device Package

Type

Function

Voltage - Input (Min)

Termination

Matchcode