Real Time Clocks

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Mfr. Part #	Availability	Price	Quantity	Datasheet	Series	Package/Case	Packaging	Product Status	Programmable	Type	Features	Memory Size	Time Format	Date Format	Interface	Voltage - Supply	Voltage - Supply, Battery	Current - Timekeeping (Max)	Operating Temperature	Mounting Type	Grade	Qualification	Supplier Device Package
DS1689SN IC RTC CLK/CALENDAR PAR 28SOIC Analog Devices Inc./Maxim Integrated	4,970	-	RFQ	Datasheet	-	28-SOIC (0.337", 8.56mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	NVSRAM	114B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	2.7V ~ 3.3V, 4.5V ~ 5.5V	2.5V ~ 3.7V	2mA @ 3V, 3mA @ 5V	-40°C ~ 85°C	Surface Mount	-	-	28-SOIC
RX-8581NB:B3 PURE SN IC RTC CLK/CALENDAR I2C 22SON EPSON	2,112	-	RFQ	Datasheet	RX-8581NB	22-LFDFN	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.8µA ~ 1.2µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	22-SON (6.3x4.8)
RX-8581NB:B3 IC RTC CLK/CALENDAR I2C 22SON EPSON	2,648	-	RFQ	Datasheet	RX-8581NB	22-SMD, 20 Leads, Flat Leads	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.8µA ~ 1.2µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	22-SON
DS1338C-18# IC RTC CLK/CALENDAR I2C 16SOIC Analog Devices Inc./Maxim Integrated	1,904	-	RFQ	Datasheet	-	16-SOIC (0.295", 7.50mm Width)	Tube	Active	Not Verified	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.71V ~ 5.5V	1.3V ~ 3.7V	100µA @ 1.89V	-40°C ~ 85°C	Surface Mount	-	-	16-SOIC
RX-8035SA:AC3 PURE SN IC RTC TIME EVENT REC I2C 14SOP EPSON	4,579	-	RFQ	Datasheet	RX-8035SA	14-SOIC (0.197", 5.00mm Width)	Tape & Reel (TR)	Active	Not Verified	Time Event Recorder	Alarm	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.4V ~ 5.5V	1V ~ 5.5V	2.5µA @ 3V	-40°C ~ 85°C	Surface Mount	-	-	14-SOP
ISL1221IUZ-T IC RTC EVENT REC I2C 10MSOP Renesas Electronics Corporation	4,668	-	RFQ	Datasheet	-	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Time Event Recorder	Alarm, Leap Year, SRAM	2B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.7V ~ 5.5V	1.8V ~ 5.5V	4µA ~ 6µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	10-MSOP
DS1685S-5+T&R IC RTC CLK/CALENDAR PAR 24SOIC Analog Devices Inc./Maxim Integrated	4,181	-	RFQ	Datasheet	-	24-SOIC (0.295", 7.50mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, NVSRAM, Square Wave Output, Y2K	242B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 3.7V	3mA @ 5V	0°C ~ 70°C	Surface Mount	-	-	24-SOIC
M41ST85WMH6E IC RTC CLK/CALENDAR I2C 28SOH STMicroelectronics	2,171	-	RFQ	Datasheet	-	28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer	44B	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.7V ~ 3.6V	2.5V ~ 3.5V	0.5mA @ 2.7V ~ 3.6V	-40°C ~ 85°C	Surface Mount	-	-	28-SOH
DS1685Q-5+T&R IC RTC CLK/CALENDAR PAR 28PLCC Analog Devices Inc./Maxim Integrated	1,310	-	RFQ	Datasheet	-	28-LCC (J-Lead)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, NVSRAM, Square Wave Output, Y2K	242B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 3.7V	3mA @ 5V	0°C ~ 70°C	Surface Mount	-	-	28-PLCC (11.51x11.51)
A3024SO20A+ IC RTC CLOCK/CALENDAR 20SO EM Microelectronic	3,037	-	RFQ	Datasheet	-	20-SOIC (0.295", 7.50mm Width)	Tube	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, RAM	8B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	-	2V ~ 5.5V	-	10µA ~ 15µA @ 3V ~ 5V	-40°C ~ 85°C (TA)	Surface Mount	-	-	20-SO
M41T62LC6F IC RTC CLK/CALENDAR I2C 8LCC STMicroelectronics	2,255	-	RFQ	Datasheet	Timekeeper®	8-LCC	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Watchdog Timer	-	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.3V ~ 4.4V	-	0.7µA ~ 0.95µA @ 1.3V ~ 4.4V	-40°C ~ 85°C	Surface Mount	-	-	8-LCC (1.5x3.2)
DS17485-3 IC RTC CLK/CALENDAR PAR 24DIP Analog Devices Inc./Maxim Integrated	1,168	-	RFQ	Datasheet	-	24-DIP (0.600", 15.24mm)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	4KB	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	2.7V ~ 3.7V	2.5V ~ 3.7V	2mA @ 2.7V ~ 3.7V	0°C ~ 70°C	Through Hole	-	-	24-PDIP
RX8804CE XBB IC RTC CLK/CALENDAR I2C 10SMD EPSON	2,072	-	RFQ	Datasheet	RX8804CE	10-SMD, No Lead	Bulk	Active	Not Verified	Clock/Calendar	Alarm, Watchdog Timer	-	HH:MM:SS	YY-MM-DD	I2C	1.6V ~ 5.5V	1.5V ~ 5.5V	1.5µA ~ 1.6µA @ 3V ~ 5V	-40°C ~ 105°C (TA)	Surface Mount	-	-	10-SMD
DS12885TN IC RTC CLK/CALENDAR PAR 32TQFP Analog Devices Inc./Maxim Integrated	1,857	-	RFQ	Datasheet	-	32-TQFP	Tray	Obsolete	Not Verified	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	114B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 4V	15mA @ 4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	32-TQFP (7x7)
DS3232MZ/V+T IC RTC CLK/CALENDAR I2C 8SOIC Analog Devices Inc./Maxim Integrated	2,072	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tape & Reel (TR)	Not For New Designs	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	Automotive	AEC-Q100	8-SOIC
RV-3129-C3-32.768KHZ-OPTION-A-TA-QC IC RTC CLK/CALENDAR I2C 10SON Micro Crystal AG	3,787	-	RFQ	Datasheet	C3	10-VCDFN	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, EEPROM, Leap Year, Programmable Clock Output, RAM, Temperature, Timer, Trickle Charger	2B, 8B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.3V ~ 5.5V	-	1µA @ 3V	-40°C ~ 85°C (TA)	Surface Mount	-	-	10-SON (3.7x2.5)
RV-3149-C3-32.768KHZ-OPTION-A-TA-QC IC RTC CLK/CALENDAR SPI 10SON Micro Crystal AG	3,719	-	RFQ	Datasheet	C3	10-VCDFN	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, EEPROM, Leap Year, Programmable Clock Output, RAM, Temperature, Timer, Trickle Charger	2B, 8B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI, 4-Wire Serial	1.3V ~ 5.5V	-	1µA @ 3V	-40°C ~ 85°C (TA)	Surface Mount	-	-	10-SON (3.7x2.5)
DS1501WEN/T&R IC RTC CLK/CALENDAR PAR 28TSOP Analog Devices Inc./Maxim Integrated	2,236	-	RFQ	Datasheet	-	28-TSSOP (0.465", 11.80mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K	256B	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	3V ~ 3.6V	2.5V ~ 3.7V	4mA @ 3V ~ 3.6V	-40°C ~ 85°C	Surface Mount	-	-	28-TSOP
MAX6909EO33+ IC RTC CLK/CAL/SUPER I2C 20QSOP Analog Devices Inc./Maxim Integrated	3,023	-	RFQ	Datasheet	-	20-SSOP (0.154", 3.90mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar/Supervisor	-	31B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	3V ~ 3.6V	-	-	-	Surface Mount	-	-	20-QSOP
MAX6916EO33+ IC RTC CLK/CAL/SUPER SPI 20QSOP Analog Devices Inc./Maxim Integrated	3,408	-	RFQ	Datasheet	-	20-SSOP (0.154", 3.90mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar/Supervisor	-	96B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI, 3-Wire Serial	3V ~ 3.6V	-	-	-	Surface Mount	-	-	20-QSOP

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