M41T56 semiconductor Series

The M41T56 series from STMicroelectronics is a robust family of serial real-time clock (RTC) integrated circuits designed for applications requiring precise timekeeping and data storage. These ICs integrate a calendar, RAM, and an I2C interface into a single package, making them versatile for a wide range of embedded systems. If you're working on projects that require accurate time synchronization, such as industrial control systems, home automation devices, or medical equipment, the M41T56 is a solid choice. They offer battery-backed operation, ensuring that the time and date remain accurate even when the main power supply is lost. This feature is particularly important in applications where timing is critical, like in alarm systems or when logging data over extended periods. One thing worth noting is that these ICs support both 32.768 kHz and 32 kHz crystal oscillators, providing flexibility in design. Engineers tend to reach for this when they need a reliable RTC with built-in calendar functionality and easy interfacing through the I2C bus. The ability to store additional data in the onboard RAM makes it easier to implement features like event logging or configuration settings w

Mfr Part #	Quantity Available	Price	Category	RoHS	Interface	Voltage - Supply	Packaging	Package / Case	Time Format	Operating Temperature	Product Category	Memory	Mounting Style	Function	Standard Package	Factory Pack Quantity	Memory Size	Voltage - Supply, Battery	Mounting Type	Supplier Device Package	Type	Features	Date Format	Mechanical Life	Standard Package Name	EU RoHS	RAM Size	Voltage Rating	Voltage - Supply (Min)	Common Mode Transient Immunity (Min)	Package Quantity	Number of Positions	Bus Connection	Width	Length - Overall	Shell Size - Insert	Printed Circuit Board	Other Names	Lead Style	MOQ	Unit Pack	SVHC	Tariff No	Automotive	Rad Hardened	Leadfree Defin	Data Rate	Crystal AR	Power - Max	Voltage - Input (Min)	Height	Length	Weight	Termination	Number of Pins	Package Cooled	Material Finish	Size / Dimension	DELETED	Matchcode	Standard Leadtime	Programmable Features	Operating Temperature - Junction
2 M41T56MH6F STMicroelectronics	0		-	RoHS Compliant	Serial	5.5 V	Reel	SO-28	HH:MM:SS	+ 85 C	Real Time Clock	64 B	SMD/SMT	Clock, Calendar	936	936	56B	2.5 V ~ 3.5 V	Surface Mount	28-SOH	Clock/Calendar	Leap Year, NVSRAM	YY-MM-DD-dd	Obsolete	-	-	-	-	-	-	-	-	-	-	-	-	-	497-4707-2	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2 M41T56MH6E STMicroelectronics	0		-	RoHS Compliant	Serial	5.5 V	Tube	SO-28	HH:MM:SS	+ 85 C	Real Time Clock	64 B	SMD/SMT	Clock, Calendar	28	28	56B	2.5 V ~ 3.5 V	Surface Mount	28-SOH	Clock/Calendar	Leap Year, NVSRAM	DW:DM:M:Y	Obsolete	SOH	Compliant	64	4.5	5.5	Industrial	SOH	28	Serial (2-Wire, I2C)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
M41T56M6 STMicroelectronics	0		-	No	Serial	5.5 V	Tube	SO-8	HH:MM:SS	+ 85 C	Real Time Clock	64 B	SMD/SMT	Clock, Calendar	-	100	-	-	-	-	-	-	-	Obsolete	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
M41T56M6TR STMicroelectronics	0		-	No	Serial	5.5 V	Reel	SOIC-8	HH:MM:SS	+ 85 C	Real Time Clock	64 B	SMD/SMT	Clock, Calendar	-	2500	-	-	-	-	-	-	-	Obsolete	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2 M41T56C64MY6F stmicroelectronics	10	1: $33.66	-	RoHS Compliant	Serial	5 V	Reel	18SOIC	HH:MM:SS	-40 to 85 °C	Real Time Clock	8192 B	SMD/SMT	Clock/Calendar	Tape & Reel	1000	56B, 8KB	2.5 V ~ 3.5 V	Surface Mount	18-SOX	Clock/Calendar	EEPROM, Leap Year, NVSRAM	DW:DM:M:Y	Obsolete	SOIC	Compliant	8192 Byte	4.5	5.5	Industrial	SOIC	18	Serial (2-Wire, I2C)	7.67(Max)	11.61	2.39(Max)	18	497-5294-2	Gull-wing	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
6 M41T56M6F stmicroelectronics	20000	2500: $9.76	-	Lead free / RoHS Compliant	I²C, 2-Wire Serial	5 V	Tape and Reel	8SO N	HH:MM:SS	-40 to 85 °C	Real Time Clock	64 B	SMD/SMT	Clock/Calendar	Tape & Reel	2500	56B	2.5 V ~ 3.5 V	Surface Mount	8-SO	RTC	Leap Year, NVSRAM	DW:DM:M:Y	-	SOIC	Compliant	64 byte	4.5 V	5.5 V	Industrial	SO N	8	Serial (2-Wire, I2C)	3.9mm	5(Max)	1.65(Max)	8	497-4706-2	Gull-wing	1	2500	:No SVHC (20-Jun-2013)	85423300	NO	No	RoHS-conform	I2C	NO	85°C	4.5V	1.25mm	4.9mm	0.003	-40°C	:8	SOIC	:MSL 1 - Unlimited	4.9 x 3.9 x 1.25mm	Compliant	M41T56M6F	15 weeks	Calendar, Chip Deselect, Clock, Switch Over	85C
2 M41T56M6E STMicroelectronics	31	93: $15.98	-	Contains lead / RoHS non-compliant	I²C, 2-Wire Serial	4.5 V ~ 5.5 V	Tube	8-SOIC (0.154", 3.90mm Width)	HH:MM:SS	-40°C ~ 85°C	-	-	-	-	100	-	56B	2.5 V ~ 3.5 V	Surface Mount	8-SO	Clock/Calendar	Leap Year, NVSRAM	DW:DM:M:Y	-	SOIC	Compliant	64	4.5	5.5	Industrial	SO N	8	Serial (2-Wire, I2C)	4(Max)	5(Max)	1.65(Max)	8	-	Gull-wing	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
2 M41T56C64MY6E stmicroelectronics	10	1: $32.776	-	RoHS Compliant	Serial	5 V	Tube	18SOX	HH:MM:SS	-40 to 85 °C	Real Time Clock	8192 B	SMD/SMT	Clock/Calendar	Rail / Tube	-	56B, 8KB	2.5 V ~ 3.5 V	Surface Mount	18-SOX	Clock/Calendar	EEPROM, Leap Year, NVSRAM	DW:DM:M:Y	Obsolete	SOX	Compliant	8192 Byte	4.5	5.5	Industrial	SOX	18	Serial (2-Wire, I2C)	7.62	11.61	2.34	18	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
M41T56MH6 STMicroelectronics	0		-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
M41T56M6E (EOL) STM	0		-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

cigen-M41T56

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Frequently Asked Questions

M41T56 semiconductor - Part List

Package / Case

Standard Package

Factory Pack Quantity

RoHS

Package Quantity

Width

Other Names

Voltage - Supply

Packaging

Supplier Device Package

Operating Temperature

Standard Package Name

RAM Size

Number of Positions

Shell Size - Insert

Memory

Interface

Memory Size

Type

Features

Function

Date Format

Voltage Rating

Voltage - Supply (Min)

Length - Overall

Printed Circuit Board