1. general description the pcf85363a is a cmos 1 real-time clock (rtc) and calendar optimized for low power consumption and with auto matic switching to battery on main power loss. the rtc can also be configured as a stop-watch (elapsed time counter). three time log registers triggered from battery switch-over as well as input driven events. fe aturing clock output and two independent interrupt signals, two alarms, i 2 c interface and quartz crystal calibration, 64 byte battery backed-up ram. for a selection of nxp real-time clocks, see table 72 on page 86 2. features and benefits ? provides year, month, day, weekday, ho urs, minutes, second s and 100th seconds based on a 32.768 khz quartz crystal ? stop-watch mode for elapsed time counting. from 100th seconds to 999999 hours ? two independent alarms ? battery back-up circuit ? watchdog timer ? three timestamp registers ? two independent interrupt generators plus predefined interrupts at every second, minute, or hour ? 64 byte battery backed-up ram ? frequency adjustment via pr ogrammable offset register ? clock operating voltage: 0.9 v to 5.5 v ? low current; typical 0.28 ? aat v dd = 3.0 v and t amb =25 ? c ? 400 khz two-line i 2 c-bus interface (at v dd = 1.8 v to 5.5 v) ? programmable clock output for periphe ral devices (32.768 khz, 16.384 khz, 8.192 khz, 4.096 khz, 2.048 khz, 1.024 khz, and 1 hz) ? configurable oscillator circuit fo r a wide variety of quartzes: c l =6pf, c l = 7 pf, and c l = 12.5 pf 3. applications pcf85363a tiny real-time clock/calendar with 64 byte ram, alarm function, battery switch-over time stamp input, and i 2 c-bus rev. 1 ? 10 july 2014 product data sheet 1. the definition of the abbreviations and acronyms used in this data sheet can be found in section 23 . ? elapsed time counter ? network powered devices ? printers and copiers ? battery backed up systems
pcf85363a all information provided in this document is subject to legal disclaimers. ? nxp semiconductors n.v. 2014. all rights r eserved. product data sheet rev. 1 ? 10 july 2014 2 of 96 nxp semiconductors pcf85363a tiny rtc with 64 byte ram, alarm, battery switch-over and i 2 c-bus 4. ordering information [1] under development. 4.1 ordering options 5. marking ? digital voice recorders ? data loggers ? mobile equipment ? white goods ? digital cameras ? accurate high duration timer table 1. ordering information type number package name description version PCF85363ATL dfn2626-10 plastic thermal enhanced extremely thin small outline package; no leads; 10 terminals; body 2.6 ? 2.6 ? 0.5 mm sot1197-1 pcf85363att [1] tssop8 plastic thin shrink small outline package; 8 leads; body width 3 mm sot505-1 pcf85363att1 [1] tssop10 plastic thin shrink small outline package; 10 leads; body width 3 mm sot552-1 table 2. ordering options product type number orderable part number sales item (12nc) delivery form ic revision PCF85363ATL/a PCF85363ATL/ax 935304648115 tape and reel, 7 inch 1 pcf85363att/a pcf85363att/aj 935304751118 tape and reel, 13 inch 1 pcf85363att1/a pcf85363att1/aj 935304752118 tape and reel, 13 inch 1 table 3. marking codes product type number marking code PCF85363ATL/a 363a pcf85363att/a 363a pcf85363att1/a 363a
pcf85363a all information provided in this document is subject to legal disclaimers. ? nxp semiconductors n.v. 2014. all rights r eserved. product data sheet rev. 1 ? 10 july 2014 3 of 96 nxp semiconductors pcf85363a tiny rtc with 64 byte ram, alarm, battery switch-over and i 2 c-bus 6. block diagram (1) not available on all package types. fig 1. block diagram of pcf85363a 7 + v h f r q g v 6 h f r q g v 0 l q x w h v 5 7 & 6 w r s z d w f k + r x u v + r x u v [ [ [ [ + r x u v [ [ [ [ + r x u v [ [ [ [ : h h n g d \ v ' d \ v 0 r q w k v < |