M41T11_11 Datasheet, PDF (1/30 Pages) STMicroelectronics – Serial real-time clock (RTC) with 56 bytes of NVRAM

M41T11
Serial real-time clock (RTC) with 56 bytes of NVRAM
Features
■ Counters for seconds, minutes, hours, day,
date, month, years 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 (100 kHz
protocol)
■ Ultra-low battery supply current of 0.8 µA (typ.
at 3 V)
■ 2.0 to 5.5 V clock operating voltage
■ Automatic switchover and deselect circuitry
■ 56 bytes of general purpose RAM
■ Software clock calibration to compensate
crystal deviation due to temperature
■ Automatic leap year compensation
■ Operating temperature of –40 to 85°C
■ Packaging includes a 28-lead SOIC and
SNAPHAT^® top (to be ordered separately;
3.3 V to 5.0 V supply voltage only)
■ RoHS compliant
– Lead-free second level interconnect
Datasheet − production data
8
1
SO8
SNAPHAT^® battery & crystal
28
1
SOH28
June 2012
This is information on a product in full production.
Doc ID 6103 Rev 10
1/30
www.st.com
1