The CMOS bq3287E/bq3287EA is a low-power microprocessor peripheral providing a time-of-day clock and 100-year calendar with alarm features and battery operation. O t he r f e a tu re s i n cl u d e th re e maskable interrupt sources, squarewave output, and 242 bytes of gene r al n o n v o l a ti l e s to ra g e. A 32.768kHz output is available for sustaining power-management activities. Wake-up capability is pro-