Analogue, Mixed Signal, LSI


RTC operates on 50/60 Hz line frequency

21 May 2003 Analogue, Mixed Signal, LSI

Dallas Semiconductor's DS1375 is a digital-input realtime clock (RTC), a low-power clock/calendar that does not require a crystal. It operates from a digital clock-input pin at one of four frequencies: 32,768 kHz, 8,192 kHz, 60 Hz, or 50 Hz. The RTC maintains seconds, minutes, hours, day, date, month, and year information. Date at the end of the month is automatically adjusted for different months, including leap year correction. The clock operates in either the 12/24-hour format with AM/PM indicator. Two programmable time-of-day alarms and a programmable square-wave output are provided. Additional user storage is provided in 16 bytes of SRAM. Address and data are transferred serially through a 2-wire bidirectional bus that operates from 1,7 to 5,5 V. The DS1375 comes in 6-pin thin QFN package.



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