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	Grade	Qualification	Package / Case	Supplier Device Package

DS3231S#T&R IC RTC CLK/CALENDAR I2C 16SOIC Analog Devices Inc./Maxim Integrated	2,973 In Stock	1 : $11.68000 Cut Tape (CT) 1,000 : $5.27159 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, TCXO/Crystal	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.3V ~ 5.5V	2.3V ~ 5.5V	110µA ~ 170µA @ 3.63V ~ 5.5V	0°C ~ 70°C	Surface Mount	-	-	16-SOIC (0.295", 7.50mm Width)	16-SOIC
DS3231MZ+ IC RTC CLK/CALENDAR I2C 8SOIC Analog Devices Inc./Maxim Integrated	4,075 In Stock	1 : $11.94000 Tube	-	Tube	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.3V ~ 5.5V	2.3V ~ 5.5V	130µA ~ 200µA @ 3.63V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC (0.154", 3.90mm Width)	8-SOIC
DS3231M+ IC RTC CLK/CALENDAR I2C 16SOIC Analog Devices Inc./Maxim Integrated	0 In Stock 9,936 Factory Check Lead Time	1 : $12.24000 Tube	-	Tube	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.3V ~ 5.5V	2.3V ~ 5.5V	130µA ~ 200µA @ 3.63V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	16-SOIC (0.295", 7.50mm Width)	16-SOIC
DS3231MZ/V+T IC RTC CLK/CALENDAR I2C 8SOIC Analog Devices Inc./Maxim Integrated	2,164 In Stock	1 : $12.57000 Cut Tape (CT) 2,500 : $5.78750 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Not For New Designs	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.3V ~ 5.5V	2.3V ~ 5.5V	130µA ~ 200µA @ 3.63V ~ 5.5V	-40°C ~ 85°C	Surface Mount	Automotive	AEC-Q100	8-SOIC (0.154", 3.90mm Width)	8-SOIC
DS3231N/DIP EXTREMELY ACCURATE I2C-INTEGRATE Analog Devices Inc./Maxim Integrated	813 Marketplace	98 : $3.07000 Bulk	-	Bulk	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, TCXO/Crystal	-	HH:MM:SS (12/24 hr)	YY-MM-DD	I2C	2.3V ~ 5.5V	2.3V ~ 5.5V	110µA ~ 170µA @ 3.63V ~ 5.5V	-40°C ~ 85°C (TA)	Surface Mount	-	-	16-SOIC (0.295", 7.50mm Width)	16-SOIC

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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.