M41T81M6F

Active
Serial real-time clock (RTC) with alarm
Quantity $ per Unit Savings
1 - 9$2.750%
10 - 24$2.4810%
25 - 99$2.3415%
100 - 249$2.0027%
250 - 499$1.8732%
500$1.6440%
Contact Sales
In stock:
$2.75
Parameter NameParameter Value
Operating RangeIndustrial
Supply Voltage Min Volt2.0
Supply Voltage Max Volt5.5
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius85.0
ECCN USEAR99
ECCN EUNEC
Packing TypeTape And Reel
ROHS Compliance GradeEcopack1
GradeIndustrial
Package NameSO-8
Key features
  • For all new designs use M41T81S
  • 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 protocol)
  • Ultra-low battery supply current of 0.6 μA (typ at 3 V)
  • 2.0 to 5.5 V clock operating voltage
  • Automatic switchover and deselect circuitry (for 3 V application select M41T81S datasheet)
  • Power-down time stamp (HT bit) allowing determination of time elapsed in battery backup
  • Programmable alarm and interrupt function (valid even during battery backup mode)
  • Accurate programmable watchdog timer (from 62.5 ms to 128 s)
  • Software clock calibration to compensate crystal deviation due to temperature
  • Operating temperature of –40 to 85 °C
  • ECOPACK®package available