ST M41T66Q6F

Часы/календарьСигнал тревоги, високосный год, выход квадратной волны, сторожевой таймер

Overview

The M41T66Q6F 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. An additional 8 registers provide status/control of alarm, square wave, calibration, and watchdog functions. Addresses and data are transferred serially via a two line, bidirectional I2C interface. The built-in address register is incremented automatically after each WRITE or READ data byte.

Functions available to the user include a time-of-day clock/calendar, alarm interrupts, programmable square wave output, and watchdog output. The eight clock address locations contain the century, year, month, date, day, hour, minute, second and tenths/hundredths of a second in 24-hour BCD format. Corrections for 28-, 29- (leap year), 30- and 31-day months are made automatically. The M41T66Q6F is supplied in a 16-pin QFN.

Features

Applications

• Mobile telephones
• Portable instruments
• Electronic metering
• Battery powered products
• Automotive
• Industrial
• Digital still camera
• Digital video camera
• Printers
• Copy machines