DATASHEET
ISL12057 FN6755
Rev 2.00
Sep 25, 2015 Low Cost and Low Power I2C RTC Real Time Clock/Calendar with Alarm Function
and Dual IRQ Pins
The ISL12057 device is a low-power, real-time clock that is
pin compatible and functionally equivalent to Maxim DS1337
with clock/calendar and alarm function.
The oscillator uses an external, low-cost 32.768kHz crystal
with 6pF load capacitance. The real-time clock tracks time
with separate registers for hours, minutes, and seconds. The
device has calendar registers for date, month, year, and day
of the week. The calendar is accurate through 2099, with
automatic leap year correction. Pinouts Features Pin Compatible to Maxim DS1337 Functionally Equivalent to Maxim DS1337 Real-Time Clock/Calendar
-Tracks Time in Hours, Minutes, and Seconds
-Day of the Week, Date, Month, and Year Dual Interrupts for Frequency Output and Alarm
interrupts Four Selectable Frequency Outputs Two Alarms ISL12057
(8 LD SOIC, MSOP)
TOP VIEW -Settable to the Second, Minute, Hour, Day of the Week,
and Date I2C Interface X1 1 8 VDD X2 2 7 IRQ1/FOUT IRQ2 3 6 SCL GND 4 5 SDA Small Package Options
-ISL12057
(8 LD UTDFN)
TOP VIEW …