tel: +44 1460 256 100 fax: +44 1460 256 101 e-mail: sales@golledge.com web: www.golledge.com 01 may 1998 real time clock RV4162C7 21 nov 2012 features ? ultra-miniature ceramic smd rtc module ? 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 0.90 0.40 0.80 (max) 3.20 (typ) 1.50 (typ) solder pad layout top view 0.50 0.50 0.90 0.80 pad 1 2 3 4 connection serial data (sda) f requency output (clkout) ground (vss) not connected pad 5 6 7 8 connection supply voltage (vdd) interrupt output (/int) not connected serial clock input (scl) 8 1 4 5 option codes RV4162C7 product parameters product + option code eg: RV4162C7/b 20ppm option code x (eg RV4162C7/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 a vailable on request ? the i 2 c-bus is a trademark of philips electronics nv block diagram this ultra small rtc module has been specially designed for miniature and cost sensitive high volume applications. the smt ceramic package combines the 32.768khz crystal unit with the cmos-based oscillator and real-time-clock circuitry. the clock function provides tenths/hundredths of seconds, seconds, minutes and hours. the calendar function tracks date, month, year and century with automatic leap year compensation. programmable clkout frequencies, alarm settings and watchdog function increase flexibility. ? manufactured by micro crystal ? stocked &?dis tributed by golledge description frequencies (selectable): 32.768khz down to 1hz ? frequency tolerance: 10ppm ? a 20ppm ? b other ? specify turnover temperature (t 0 ): +25c 5c ? frequency / temp coefficient: -0.035ppm/c 2 10% ? operating temperature range: -40 to +85c ? storage temperature range: -55 to +125c ? supply voltage (v dd ): i 2 c bus active 1.3 ~ 4.4v ? time-keeping mode 1.0 ~ 4.4v ? supply current (during access): 35 a typ (fscl=400khz, v dd =3v) ? 20 a typ (f scl=400khz, v dd =2v) ? supply current (time-keeping): 350/500na typ/max (fscl=0hz, v dd =3v) ? 270/400na typ/max (fscl=0hz, v dd =1v) ? ageing: 3ppm ma x first year ? shock and vibration resistance: 5ppm, 5,000g, 0.3ms, ? sine ? 5ppm, 20g, 10.0 ~ 2,000hz ? soldering condition: reflow, 260c, 20 sec max ?
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