tel: +44 1460 256 100 fax: +44 1460 256 101 e-mail: sales@golledge.com web: www.golledge.com features ? high accuracy, ultra low power ? built-in crystal for adjustment-free operation ? time stamp event input function ? i 2 c-bus interface (up to 400khz) ? programmable alarm, timer and interrupt 0.90 0.40 0.80 (max) 3.20 (typ) 1.50 (typ) solder pad layout top view 0.50 0.50 0.90 0.80 8 1 4 5 pad 1 2 3 4 connection serial data (sda) f requency output (clkout) supply voltage (vdd) clock output enable (clkoe) pad 5 6 7 8 connection ground (vss) interrupt output (int) event input (evi) serial clock input (scl) option codes RV8803C7 product parameters product code ie: RV8803C7 option code x (eg RV8803C7/x) denotes a custom spec. ordering information ? standard. ? optional - please specify required code(s) when ordering specifications ? available on t&r - 1k or 3k pcs per reel. ? evaluation / development board & ? manual av ailable on request ? the i 2 c-bus is a trademark of philips electronics nv block diagram the RV8803C7 is an high accuracy, ultra low power real-time-clock module with embedded 32.768 khz crystal. high accuracy, high stability is achieved by factory calibrated, temperature compensated dtcxo giving time-accuracy of 3.0 ppm accross the temperature range from -40c to +85c. standard clock & calendar function tracks second, minute, hour in 24-hour format, year and leap-year flags. beside standard rtc functions like timer & alarm, it includes integrated temperature sensor, time stamp event input and user ram and offers i2c-bus (2-wire interface). rv-8803-c7 is the smallest sized and consumes the lowest current of all temperature compensated rtc modules. ? manufactured by micro crystal ? stocked &? distribut ed by golledge description 2 011 / 65 / eu real time clock, ultra low power RV8803C7 frequencies (selectable): 32.768khz, 1024hz, 1hz ? frequency tolerance (1hz): 3ppm ma x, -40+85c ? frequency tolerance (32.768khz): 10ppm typ, 20ppm max, 25c ? time accuracy: 1.5ppm max (0.13s/day), 0+50c ? 3ppm max (0.26s/day), -40+85c ? turnover temperature (t 0 ): +25c 5c ? fr equency / temp coefficient: -0.035ppm/c 2 10% ? oper ating temperature range: -40 to +85c ? storage temperature range: -55 t o +125c ? supply v oltage (v dd ): 1.5 ~ 5.5v ? supply current: 240/400na typ/max, v dd =3v ? ageing (25c): 3ppm max fir st year ? shock and vibration resistance: 5ppm, 5,000g, 0.3ms, ? sine ? 5ppm, 20g, 10.0 ~ 2,000hz ? soldering condition: reflow, 260c, 20 sec max ? 02 apr 2015
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