tel: +44 1460 256 100 fax: +44 1460 256 101 e-mail: sales@golledge.com web: www.golledge.com real time clock RV8564C3 21 nov 2012 features ? aec q200 rev c compliant ? compliant with i 2 c-bus interface (400khz) ? built in crystal for adjustment-free operation ? programmable alarm, timer and interrupt ? low power consumption, low ageing 0.80 0.30 0.90 (max) 3.70 (typ) 2.50 (typ) solder pad layout top view 0.60 0.50 0.80 0.80 10 1 6 5 3.00 pad 1 2 3 4 5 connection clock output enable (clkoe) supply (vdd) clock output (clkout) serial clock input (scl) serial data (sda) pad 6 7 8 9 10 connection interrupt output (int) ground (gnd) not connected not connected not connected option codes RV8564C3 product parameters product + option code eg: RV8564C3/b 20ppm option code x (eg RV8564C3/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 this sub-miniature smd ? ceramic package has been specially designed to combine the 32.768khz crystal unit with a cmos based oscillator and real-time clock circuit. the calendar function tracks year, month, date and day of the week with built-in century and leap-year flags. the clock function tracks minutes and seconds in 24-hour format. programmable alarm setting and universal timer functions increase flexibility. ? manufactured by micro crystal ? stocked &? distribut ed by golledge description frequencies (selectable): 32.768khz, 1024hz, 32hz & 1hz ? frequency tolerance: 10ppm ? a 20ppm ? b other ? specify t urnover temperature (t 0 ): +25c 5c ? fr equency / temp coefficient: -0.035ppm/c 2 10% ? oper ating temperature range: -40 to +85c ? -40 to +125c ? e st orage temperature range: -55 to +125c ? supply v oltage (v dd ): i 2 c bus active 1.8 ~ 5.5v ? time-keeping mode 1.2 ~ 5.5v ? supply current (during access): 200 a max (fscl=100khz) ? 800 a max (f scl=400khz) ? supply current (time-keeping): 250/500na typ/max (fscl=0hz, v dd =3v) ? 225/450na typ/max (fscl=0hz, v dd =2v) ? ageing: 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 ? 2 011 / 65 / eu
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