GENERAL DESCRIPTION

The MSM6782 - 01 is a CMOS Serial Interface Real Time Clock/Calendar. The serial interface that can be controlled by mere 3 signal lines has minimized the number of CPU terminals required .

The MSM6782 - 01 provides 30-second adjustment, oscillation stop detection, and periodic flag

setting and signal output in 4 diferent cycle periods.The clock ranges are seconds, minutes, hours, days, months, years, and days of the week.

The interface supply voltage is 2.7V to 5.5V and the clock supply voltage is 2.0V to 5.5V.

The MSM6782 - 01 comes in an 8-pin DIP package or an 8-pin SOP package.

The MSM6782 - 01 is highly integrated and is suitable for use in a variety of portable applications.

FEATURES

• Real time clock providing seconds, minutes, hours, days, months, and days of the week.

• Serial interface controlled by 3 signal lines

• A periodic interrupt output in 4 different cycle periods (or periodic waveform output)

• Automatic leap year calendar

• 30-second adjustment controlled by software

• Stop and restart of clock

• Wide range of interface power supply:  2.7V to 5.5V

• Wide range of clock power supply: 2.0V to 5.5V

• 32.768kHz external quart crystal

• Low current consumption

• 8-pin plastic DIP (DIP8-P-300) (MSM6782-01RS)

• 8-pin plastic SOP (SOP8-P-250-K) (MSM6782-01MS-K)