Voltage - Supply is 2.7 V ~ 3.3 V - Clock/Timing - Real Time Clocks Distributor - DS1391U-3+ DS1672-3 DS1672S-3

Part Number	Manufacturer / Brand	Brife Description	Part Status	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
DS1391U-3+	Maxim Integrated	IC RTC CLOCK/CALENDAR SPI 10-USOP	Active	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	2.7 V ~ 3.3 V	1.3 V ~ 3.7 V	125µA @ 2.7V ~ 3.3V	-40°C ~ 85°C	Surface Mount	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-uMAX
DS1672-3	Maxim Integrated	IC RTC BINARY CNT I2C 8-DIP	Obsolete	Binary Counter	Trickle-Charger	-	Binary	Binary	I²C, 2-Wire Serial	2.7 V ~ 3.3 V	1.3 V ~ 3.63 V	500µA @ 3.3V	-40°C ~ 85°C	Through Hole	8-DIP (0.300", 7.62mm)	8-PDIP
DS1672S-3	Maxim Integrated	IC RTC BINARY CNT I2C 8-SOIC	Obsolete	Binary Counter	Trickle-Charger	-	Binary	Binary	I²C, 2-Wire Serial	2.7 V ~ 3.3 V	1.3 V ~ 3.63 V	500µA @ 3.3V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
DS1673S-3	Maxim Integrated	IC RTC SYSTEM Controller SER 20-SOIC	Obsolete	Portable System Controller	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	2.7 V ~ 3.3 V	2.5 V ~ 3.7 V	100µA @ 3V	0°C ~ 70°C	Surface Mount	20-SOIC (0.295", 7.50mm Width)	20-SOIC