M41TC8025

M41TC8025 Highly accurate, temperature-compensated serial real-time clock (RTC) with embedded crystal Data brief Features ■ ■ Embedded high-stability 32 KHz DTCXO Temperature-compensated serial real-time clock – ±5.0 ppm max from -40 to 85 °C – ±3.8 ppm max from 0 to 50 °C Supply voltage – Clock operating & timekeeping: 1.6 to 5.5 V – I2C interface operating: 1.8 to 5.5 V – Temperature compensation: 2.2 to 5.5 V 0.8 µA typical current at 3.0 V supply voltage 400 kHz I2C interface Time-of-day alarm (with interrupt) Fixed-cycle timer interrupt function Time update interrupt function Programmable frequency output – FOUT = 1 Hz, 1 KHz and 32 KHz Registers for seconds, minutes, hours, day-ofweek, date (day of month), month and year with automatic leap year compensation Programmable temperature compensation intervals (0.5 s, 2 s default, 10 s, 30 s) ■ SO14 14-pin SOIC ■ ■ ■ ■ ■ ■ ■ Description The M41TC8025 is a serial I2C real-time clock (RTC) incorporating temperature compensation to maintain accurate timekeeping over the industrial temperature range of -40 to +85 °C. In addition to providing date and time (seconds, minutes, hours, day-of-week, date (day of month), month and year), the device also provides an alarm function, fixed-cycle timer, time update interrupt and programmable frequency outputs (1 Hz, 1 KHz and 32 KHz). The M41TC8025 is provided in a 200 mil, 14-pin SOIC package. www.DataSheet.net/ ■ Applications ■ ■ Power meters Industrial applications Device summ...