Real Time Clocks

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	DigiKey Programmable	Type	Features	Memory Size	Time Format	Date Format	Interface	Voltage - Supply	Voltage - Supply, Battery	Current - Timekeeping (Max)	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package

DS1683S+ IC RTC ELAPSED CNT I2C 8SOIC Analog Devices Inc./Maxim Integrated	972 In Stock 16,900 Factory	1 : ¥51.39000 Tube	-	Tube	Active	Verified	Elapsed Time Counter	Alarm, EEPROM	16B	Binary	Binary	I2C, 2-Wire Serial	2.5V ~ 5.5V	-	-	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
DS1340C-33# IC RTC CLK/CALENDAR I2C 16SOIC Analog Devices Inc./Maxim Integrated	516 In Stock 1,150 Factory	1 : ¥67.32000 Tube	-	Tube	Active	Not Verified	Clock/Calendar	Leap Year, Trickle-Charger	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.97V ~ 5.5V	1.3V ~ 5.5V	150µA @ 5.5V	-40°C ~ 85°C	Surface Mount	16-SOIC (0.295", 7.50mm Width)	16-SOIC

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Real Time Clocks

Real Time Clocks (RTCs) provide time and/or date information in almost any electronic device which needs to keep accurate time. The clock types are binary counter, clock/calendar/supervisor, elapsed time counter, phantom time chip, portable system controller, temperature recorder, time event recorder, and timer clock peripheral. They contain memory sizes ranging from 2 B to 2 MB and have interface options of I2C, Parallel, Serial, SPI, 1-Wire, 2-Wire, 3-Wire, and 4-Wire.