ST M41T65Q6F

时钟/日历警报器，闰年，监视计时器

Overview

The M41T6x is a low-power serial real-time clock (RTC) with a built-in 32.768 kHz oscillator. Eight registers are used for the clock/calendar function and are configured in binary-coded decimal (BCD) format. An additional eight registers provide status/control of alarm, 32 kHz output, 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 (M41T62/65), 32 kHz output (M41T62/64), programmable square wave output (M41T62/64), and watchdog output (M41T65). 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 M41T6x is supplied in two very small packages: a tiny, 3 x 3 mm 16-pin QFN which requires a user-supplied 32 kHz crystal, and an ultra-small 1.5 x 3.2 mm LCC with embedded crystal - no external crystal is required.

Features

16-VFQFN Exposed Pad package
16 terminations
16 pin count
1.5/3V power supplies
Timekeeper? series

Applications

There are a lot of STMicroelectronics M41T65Q6F Real Time Clocks applications.

• POS Terminal

• Modem

• Glucometer

• Metering

• Medical Equipment

• Battery backed up systems

• IoT

• Point-of-Sale Equipment

• Mobile equipment

• Electronic metering