Serial RTC
www.DataSheet4U.com M41T82 M41T83 Serial RTC with battery switchover Features ■ ■ ■ 2.0 to 5.5V clock operating voltage Ultra-low battery supply current of 365nA Counters for tenths/hundredths of seconds, seconds, minutes, hours, day, date, month, year, and century Programmable clock calibration (analog and digital) Automatic switchover and reset output ci...
ST Microelectronics