Specification	M41T00M6F

Current - Timekeeping (Max)	70 µA
Date Format	YY-MM-DD-dd
Features	Leap Year
Interface	I2C, 2-Wire Serial
Mounting Type	Surface Mount
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 C
Package / Case	0.154 in
Package / Case	8-SOIC
Package / Case	3.9 mm
Supplier Device Package	8-SOIC
Time Format	HH:MM:SS
Type	Clock/Calendar
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	2 V
Voltage - Supply, Battery [Max]	3.5 V
Voltage - Supply, Battery [Min]	2.5 V

M41T00 Series

Part	Features	Voltage - Supply, Battery [Min]	Voltage - Supply, Battery [Max]	Mounting Type	Time Format	Package / Case	Package / Case	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Type	Supplier Device Package	Voltage - Supply [Max]	Voltage - Supply [Min]	Current - Timekeeping (Max)	Interface	Date Format
STMicroelectronics M41T00M6E	Leap Year	2.5 V	3.5 V	Surface Mount	HH:MM:SS	0.154 in	8-SOIC	3.9 mm	85 °C	-40 C	Clock/Calendar	8-SOIC	5.5 V	2 V	70 µA	I2C 2-Wire Serial	YY-MM-DD-dd
STMicroelectronics M41T00M6F	Leap Year	2.5 V	3.5 V	Surface Mount	HH:MM:SS	0.154 in	8-SOIC	3.9 mm	85 °C	-40 C	Clock/Calendar	8-SOIC	5.5 V	2 V	70 µA	I2C 2-Wire Serial	YY-MM-DD-dd

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	N/A	7702	$ 3.35
Mouser	N/A	1	$ 3.42
		10	$ 2.57
		25	$ 2.36
		100	$ 2.13
		250	$ 2.02
		500	$ 1.95
		1000	$ 1.89
		2500	$ 1.79
		5000	$ 1.71
Newark	Each (Supplied on Full Reel)	2500	$ 1.81
		5000	$ 1.80

Description

General part information

M41T00 Series

The M41T00 is a low power serial real-time clock with a built-in 32.768 kHz oscillator (external crystal controlled). Eight bytes of the RAM are used for the clock/calendar function and are configured in binary-coded decimal (BCD) format. Addresses and data are transferred serially via a two-line bidirectional bus. The built-in address register is incremented automatically after each WRITE or READ data byte.

The M41T00 clock has a built-in power sense circuit which detects power failures and automatically switches to the battery supply during power failures. The energy needed to sustain the RAM and clock operations can be supplied from a small lithium coin cell.

Typical data retention time is in excess of 5 years with a 50 mA/h 3 V lithium cell.