Feature Integration Technology Inc.
Fintek
F15353
1 General Description
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. In a system that operates on a
backup battery, the free register incorporated in the real-time clock can be used for the user backup
memory function. The user register can hold data on a supply voltage as low as 1.1 V (min.), so the data stored
in the register before the main power supply was removed and can be recalled any time after the power is
reconnected.
A clock adjustment functionthat enableswide range correction of deviation in the frequency of the crystal
oscillator at a minimum resolution of 1 PPM is integrated in the F15353. Theclockadjustmentvaluecanbesetin
accordance with changes in the temperature. It is possible to make the realization of clock function that retains a
high degree ofaccuracy regardless of temperature variation by combining with a temperaturesensor.
2 Feature
Low Current Consumption: 0.55uA, Typical (VDD = 3.0V, Ta = 25°C)
Operate Voltage Range: 1.3 to 3.6V
Minimum Time Keeping Operation Voltage: 1.1V
Built-in Clock Adjustment Function
Built-in Free User Register
Built-in Alarm Interrupt
Built-in Flag Generator at Power down or Power on
Built-in Constant Voltage Circuit
Built-in 32KHz Crystal Oscillator Circuit (Cd Built-in, Cq External)
Auto Calendar up to the Year 2099, Automatic Leap Year Calculation Function
I2C Interface
Powered by 3.3VCC and packaged in SOP-8 and TSSOP-8
V0.12P
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FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
