The F15353 which is a low current consumption 2- wire CMOS real-time clock operates under 1.3V to 3.6V. The current consumption is only 0.55uA and operation voltage is 1.1V as time keeping. Inasystemthatoperatesonabackupbattery,thefreeregisterincorporated in the real-time clock can be used for the user backup memory function. Theuserregistercanholddataonasupplyvoltageaslowas1.1V(min.), sothedatastoredintheregisterbeforethemainpowersupplywasremoved andcan be recalled any time after the power is reconnected.
A clockadjustmentfunctionthat enableswiderangecorrectionofdeviationinthefrequencyofthecrystaloscillatorata minimum resolution of 1 PPMis integrated in the F15353. Theclockadjustmentvaluecanbesetinaccordance withchangesinthetemperature. It is possible to make the realization of clock function thatretains ahighdegreeofaccuracyregardlessoftemperature variation by combining with a temperaturesensor.
- FEATURES
- PACKAGE
- ATTACHMENTS
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Low Current Consumption: 0.55uA, Typical (VDD = 3.0V, Ta = 25°C)
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Operate Voltage Range: 1.3 to 3.6V
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Minimum Time Keeping Operation Voltage: 1.1V
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Built-in Clock Adjustment Function
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Built-in Free User Register
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Built-in Alarm Interrupt
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Built-in Flag Generator at Power down or Power on
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Built-in Constant Voltage Circuit
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Built-in 32KHz Crystal Oscillator Circuit (Cd Built-in, Cq External)
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Auto Calendar up to the Year 2099, Automatic Leap Year Calculation Function
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I2C Interface
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Powered by 3.3VCC and packaged in SOP-8 and TSSOP-8