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M41T60Q6F

NRND

Low power serial real-time clock (RTC)

Quantity $ per Unit Savings
1 - 9$2.440%
10 - 24$2.2010%
25 - 99$2.0815%
100 - 249$1.7727%
250$1.6732%
Contact Sales
In stock
$2.44
Parameter NameParameter Value
Operating RangeIndustrial
Supply Voltage Min Volt1.3
Supply Voltage Max Volt4.4
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius85.0
ECCN USEAR99
ECCN EUNEC
Packing TypeTape And Reel
ROHS Compliance GradeEcopack2
GradeIndustrial
Package NameQFN-16L

The M41T60 is a low-power serial real-time clock (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. Addresses and data are transferred serially via a two-line, bidirectional bus. The built-in address register is increased automatically after each WRITE or READ data byte.


The eight clock address locations contain the century, year, month, date, day, hour, minute, and second in 24-hour BCD format. Corrections for 28-, 29- (leap year), 30-, and 31-day months are made automatically.


The M41T60 is supplied in a 16-lead QFN package.

Key features
  • Counters for seconds, minutes, hours, day, date, month, years, and century
  • 32 KHz crystal oscillator integrating load capacitance and high crystal series resistance operation
  • Oscillator stop detection monitors clock operation
  • Serial interface supports I2C bus (400 kHz)
  • 350 nA timekeeping current at 3 V
  • Low operating current of 35 μA (at 400 kHz)
  • Timekeeping down to 1.0 V
  • 1.3 V to 4.4 V I2C bus operating voltage
  • Software clock calibration to compensate deviation of crystal due to temperature
  • Software programmable output (OUT)
  • Operating temperature of –40 to 85 °C
  • Automatic leap year compensation
  • Lead-free 16-pin QFN package
  • Li-ion rechargeable operation