DS1340 DS1340Z DS1340Z-33 --  I2C RTC with Trickle Charger

Features

♦ Enhanced Second Source for the ST M41T00

♦ Available in a Surface-Mount Package with an

Integrated Crystal (DS1340C)

♦ Fast (400kHz) I2C Interface

♦ Software Clock Calibration

♦ RTC Counts Seconds, Minutes, Hours, Day, Date,

Month, and Year

♦ Automatic Power-Fail Detect and Switch Circuitry

♦ Trickle-Charge Capability

♦ Low Timekeeping Voltage Down to 1.3V

♦ Three Operating Voltage Ranges (1.8V, 3V, and 3.3V)

♦ Oscillator Stop Flag

♦ Available in 8-Pin µSOP or SO Packages

♦ Underwriters Laboratory (UL) Recognized

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