RX-8025NB

www.DataSheet4U.com Real time clock module High-Stability I2C-Bus INTERFACE REAL TIME CLOCK MODULE RX - 8025 SA / NB Built-in 32.768 kHz quartz oscillator : Frequency adjusted for high accuracy (± 5 ×10−6 / Ta = +25 °C) Interface Type : I2C-Bus Interface (400 kHz) Operating voltage range : 1.70 V to 5.5 V Wide Timekeeper voltage range : 1.15 V to 5.5 V Various detection Functions : Ex. Oscillation stop detection function Low backup current : 0.48 µA / 3 V (Typ.) Actual size 32.768 kHz frequency output function : C-MOS output With Control Pin RX-8025SA The various functions include full calendar, alarm, timer. Lead(Pb)-free : Contains high melting temperature type solder (Pb85 %) exempted by RoHS directive. * The I2C-Bus is a trademark of Philips Electronics N.V. RX-8025NB Block diagram Alarm_W Register ( Min,Hour,Week ) Overview Features built-in 32.768 kHz quartz oscillator Frequency adjusted for high accuracy. ( ± 5 ×10−6 / Ta = +25 °C ) ( Equivalent to 13 seconds of monthly deviation ) FOUT FOE 32 kHz Output Control Comparator_W Voltage Detect VDD Comparator_D Alarm_D Register ( Min,Hour ) The various detection function Power supply voltage monitoring function (with selectable detection threshold ) Stop detection function Power-on reset detection function OSC Divider Correc -tion Div. Time Counter ( Sec,Min,Hour,Week,Day,Month,Year ) OSC Detect / INTA / INTB Address Decoder Address Register I/O Control Alarm function an...