M41T80M6F Real-Time Clock (RTC) ICs by STMicroelectronics

Serial real-time clock (RTC) with alarm

Status: Active
Series: M41T80
RoHS: Compliant
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The M41T80 is a low power serial RTC with a built-in 32.768 kHz oscillator (external crystal controlled). Eight registers are used for the clock/calendar function and are configured in binary coded decimal (BCD) format. An additional 12 registers provide status/control of alarm, 32 KHz output, and square wave functions. Addresses and data are transferred serially via a two line, bi-directional I 2 C interface. The built-in address register is incremented automatically after each WRITE or READ data byte. Functions available to the user include a time-of-day clock/calendar, alarm interrupts, 32 KHz output, and programmable square wave output. The eight clock address locations contain the century, year, month, date, day, hour, minute, second and tenths/hundredths of a second in 24-hour BCD format. Corrections for 28, 29 (leap year - valid until year 2100), 30 and 31 day months are made automatically. The M41T80 is supplied in an 8-pin SOIC.

Prices starting from US$0.39


Distributor Starting From Stock
Logo for element14 element14 US$1.61
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Logo for Farnell Farnell US$1.35
2,083
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Logo for Newark Electronics Newark Electronics US$0.39
1
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Logo for Future Electronics Future Electronics US$1.35
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Logo for Avnet America Avnet America US$1.56
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Features

Counters for tenths/hundredths of seconds, seconds, minutes, hours, day, date, month, year, and century
32 KHz crystal oscillator integrating load capacitance (12.5 pF) providing exceptional oscillator stability and high crystal series resistance operation
Serial interface supports I2C bus (400 kHz)
2.0 to 5.5 V clock operating voltage
32 KHz square wave on power-up to drive a microcontroller in low-power mode
Programmable (1 Hz to 32 KHz) square wave
Programmable alarm and interrupt function
Low operating current of 200 μA
Operating temperature of –40 to 85 °C
ECOPACK®package available

Alternative Descriptions

STMicroelectronics, M41T80M6F | RS
ALARM RTC, 20B, I2C, 5.5V, SOIC-8 | element14
Alarm Rtc, 20B, I2C, 5.5V, Soic-8 | Newark Electronics
M41T80 Series 2 V Serial I2C Real Time Clock with Alarm - SOIC-8 | Future Electronics
Real Time Clock Serial 20Byte 8-Pin SO N T/R | Avnet America


Frequently Asked Questions

Where can I find additional details, specifications and documents for a M41T80M6F?

Additional datasheets, footprints and schematics for M41T80M6F are listed on our Part Details page. You can also find images and similar parts to M41T80M6F on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for M41T80M6F on our Product Comparison page. Access via the 'View Pricing & Stock' button to view M41T80M6F price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does M41T80M6F fall under?

The M41T80M6F is listed under Clocks and Timers > Real-Time Clock (RTC) ICs > RTC - Serial Interface.

Can I view similar or alternative parts?

You can view similar parts to M41T80M6F when available in the RTC - Serial Interface range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the M41T80M6F you can contact the distributor directly for product support, shipping queries etc.

Is the M41T80M6F RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by STMicroelectronics.

Which authorised distributors for M41T80M6F have stock available?

Authorised distributors including RS, element14, Farnell, Newark Electronics and Future Electronics have stock available or on a lead time for M41T80M6F.

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