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

DS1342U+T&R IC RTC CLOCK/CALENDAR I2C 8UMAX Analog Devices Inc./Maxim Integrated	7,662 In Stock	1 : ¥46.67000 Cut Tape (CT) 3,000 : ¥15.64496 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	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	1.8V ~ 5.5V	-	0.6µA ~ 0.7µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-uMAX/uSOP
DS1337S+T&R IC RTC CLK/CALENDAR I2C 8SOIC Analog Devices Inc./Maxim Integrated	11,181 In Stock	1 : ¥47.27000 Cut Tape (CT) 2,500 : ¥15.39761 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	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	1.8V ~ 5.5V	-	0.6µA @ 1.3V ~ 1.8V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
DS1374U-33+T&R IC RTC BINARY COUNTER I2C 10UMAX Analog Devices Inc./Maxim Integrated	3,975 In Stock	1 : ¥60.02000 Cut Tape (CT) 3,000 : ¥20.55543 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Binary Counter	Alarm, Square Wave Output, Trickle-Charger, Watchdog Timer	-	Binary	Binary	I2C, 2-Wire Serial	2.97V ~ 5.5V	1.3V ~ 5.5V	175µA @ 2.97V ~ 5.5V	-40°C ~ 85°C	Surface Mount	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-uMAX/uSOP
DS1683S+T&R IC RTC ELAPSED CNT I2C 8SOIC Analog Devices Inc./Maxim Integrated	7,139 In Stock	1 : ¥68.60000 Cut Tape (CT) 2,500 : ¥24.55233 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	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
DS3232MZ+TRL IC RTC CLK/CALENDAR I2C 8SOIC Analog Devices Inc./Maxim Integrated	7,200 In Stock	1 : ¥95.47000 Cut Tape (CT) 2,500 : ¥44.64839 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM	236B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.3V ~ 4.5V	2.3V ~ 4.5V	175µA @ 2.3V ~ 4.5V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
DS1672S-33+T&R IC RTC BINARY COUNTER I2C 8SOIC Analog Devices Inc./Maxim Integrated	6,332 In Stock	1 : ¥54.07000 Cut Tape (CT) 2,500 : ¥18.04312 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Binary Counter	Trickle-Charger	-	Binary	Binary	I2C, 2-Wire Serial	2.97V ~ 3.63V	1.3V ~ 3.63V	500µA @ 3.63V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
S-35399A03-J8T1U IC RTC CLOCK/CALENDAR I2C 8SOP ABLIC Inc.	3,852 In Stock	1 : ¥23.72000 Cut Tape (CT) 4,000 : ¥11.08346 Tape & Reel (TR)	S-35399A03	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.3V ~ 5.5V	-	14µA ~ 30µA @ 3V ~ 5V	-40°C ~ 85°C (TA)	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOP-J

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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.