MSM58321 Datasheet (OKI) - REAL TIME CLOCK/CALENDAR

MSM58321, REAL TIME CLOCK/CALENDAR

The MSM 58321 is a metal gate CMOS Real Time Clock/Calendar with a battery backup function for use in bus-oriented microprocessor applications.

The 4-bit bidirectional bus line method is used for the data I/O circuit; the clock is set, corrected, or read by accessing the memory.

MSM58321 The time

MSM58321 Features

* 7 Function-Second, Minute, Hour, Day, Day-of-Week, Month, Year

* Automatic leap year calender

* 12/24 hour format

* Frequency divider 5-poststage reset

* Reference signal output

* 32.768 kHz crystal controlled operation