Clock/Timing - Real Time Clocks

Mfr Part #	Qty	Price	Product 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
DS1343D-33+ IC RTC CLK/CAL SPI 14TDFN Analog Devices Inc./Maxim Integrated	4,548	4.48500	Active	Clock/Calendar	Alarm, Leap Year, NVRAM, Square Wave Output, Trickle Charger	96B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	3V ~ 5.5V	1.3V ~ 5.5V	120µA ~ 160µA @ 3.63V ~ 5.5V	-40°C ~ 85°C	Surface Mount	14-WFDFN Exposed Pad	14-TDFN (3x3)	Details
R2221T-E2-F SERIAL INTERFACE REAL TIME CLOCK Nisshinbo Micro Devices Inc.	10,744	1.72000	Active	Clock/Calendar	Alarm, Leap Year, RAM	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.5V ~ 5.5V	-	0.9µA @ 3V	-40°C ~ 85°C	Surface Mount	10-VFSOP, 10-MSOP (0.110", 2.80mm Width)	10-TSSOPG	Details
DS1685SN-5+T&R IC RTC CLK/CALENDAR PAR 24-SOIC Analog Devices Inc./Maxim Integrated	4,441	5.50500	Active	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	-40°C ~ 85°C	Surface Mount	24-SOIC (0.295", 7.50mm Width)	24-SOIC	Details
DS1344D-3+T&R IC RTC CLK/CAL SPI 14TDFN Analog Devices Inc./Maxim Integrated	1,023	5.75000	Active	Clock/Calendar	Alarm, Leap Year, NVRAM, Square Wave Output, Trickle Charger	96B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	2.7V ~ 5.5V	1.3V ~ 5.5V	-	-40°C ~ 85°C	Surface Mount	14-WFDFN Exposed Pad	14-TDFN (3x3)	Details
MAX31341BEWC+T LOW CURRENT REAL TIME CLOCK WITH Analog Devices Inc./Maxim Integrated	8,973	2.21000	Active	Clock/Calendar	Alarm, Leap Year, Square Wave Output	64B	HH:MM:SS (24 hr)	YY-MM-DD-dd	I²C	1.6V ~ 3.6V	1.6V ~ 3.6V	0.33µA ~ 0.39µA @ 1.6V ~ 3.6V	-40°C ~ 85°C	Surface Mount	12-WFBGA, WLBGA	12-WLP (2.14x1.56)	Details
MCP79400T-I/ST IC RTC CLK/CALENDAR I2C 8-TSSOP Microchip Technology	8,899	0.99000	Active	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 5.5V	1.2µA (Typ) @ 3.3V	-40°C ~ 85°C	Surface Mount	8-TSSOP (0.173", 4.40mm Width)	8-TSSOP	Details
DS1742-85+ IC RTC CLK/CALENDAR PAR 24-EDIP Analog Devices Inc./Maxim Integrated	282	15.95000	Obsolete	-	-	-	-	-	-	-	-	-	-	-	-	-	Details
M41T00SM6F IC RTC CLK/CALENDAR I2C 8-SOIC STMicroelectronics	4,628	3.84000	Active	Clock/Calendar	Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	2.7V ~ 5.5V	2V ~ 3.5V	70µA @ 2.7V ~ 5.5V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC	Details
DS1747-70+ IC RTC CLK/CALENDAR PAR 32-EDIP Analog Devices Inc./Maxim Integrated	442	49.64000	Active	Clock/Calendar	Leap Year, NVSRAM, Y2K	512KB	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	4mA @ 5V	0°C ~ 70°C	Through Hole	32-DIP Module (0.600", 15.24mm)	32-EDIP	Details
DS1390U-3+T&R IC RTC CLK/CALENDAR SPI 10-MSOP Analog Devices Inc./Maxim Integrated	6,461	2.29500	Active	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	2.7V ~ 3.3V	1.3V ~ 3.7V	125µA @ 2.7V ~ 3.3V	-40°C ~ 85°C	Surface Mount	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-uMAX/uSOP	Details
DS1343D-33+T&R IC RTC CLK/CAL SPI 14TDFN Analog Devices Inc./Maxim Integrated	1,155	5.56000	Active	Clock/Calendar	Alarm, Leap Year, NVRAM, Square Wave Output, Trickle Charger	96B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	3V ~ 5.5V	1.3V ~ 5.5V	120µA ~ 160µA @ 3.63V ~ 5.5V	-40°C ~ 85°C	Surface Mount	14-WFDFN Exposed Pad	14-TDFN (3x3)	Details
ISL1208IU8Z-TK IC RTC CLK/CALENDAR I2C 8-MSOP Renesas Electronics America Inc	1,667	3.79000	Active	Clock/Calendar	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	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-MSOP	Details
DS1338U-33+ IC RTC CLK/CALENDAR I2C 8-USOP Analog Devices Inc./Maxim Integrated	500	4.66000	Active	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	3V ~ 5.5V	1.3V ~ 3.7V	125µA ~ 200µA @ 3.63V ~ 5.5V	-40°C ~ 85°C	Surface Mount	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-uMAX/uSOP	Details
DS1305EN+ IC RTC CLK/CALENDAR SPI 20-TSSOP Analog Devices Inc./Maxim Integrated	4,052	6.95000	Active	Clock/Calendar	Alarm, Leap Year, NVSRAM, Trickle-Charger	96B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	2V ~ 5.5V	2V ~ 5.5V	25.3µA ~ 81µA @ 2V ~ 5V	-40°C ~ 85°C	Surface Mount	20-TSSOP (0.173", 4.40mm Width)	20-TSSOP	Details
DS1390U-33+ IC RTC CLK/CALENDAR SPI 10-USOP Analog Devices Inc./Maxim Integrated	5,814	4.74000	Active	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	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	Details
RV-4162-C7-32.768KHZ-20PPM-TA-QC IC RTC CLK/CALENDAR I2C 8SON Micro Crystal AG	8,079	2.75000	Active	Clock/Calendar	Alarm, Leap Year, Programmable Clock Output, Watchdog Timer	-	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1V ~ 4.4V	-	0.5µA @ 3V	-40°C ~ 85°C (TA)	Surface Mount	8-WCDFN	8-SON (3.2x1.5)	Details
DS1558W+TRL IC RTC CLK/CALENDAR PAR 48-LQFP Analog Devices Inc./Maxim Integrated	8,833	7.48500	Active	Clock/Calendar	Alarm, Leap Year, Watchdog Timer, Y2K	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	2.97V ~ 3.63V	2.5V ~ 3.7V	2mA @ 3.3V	-40°C ~ 85°C	Surface Mount	48-LQFP	48-LQFP (7x7)	Details
DS1315-5+ IC RTC PHANTOM PAR 16-DIP Analog Devices Inc./Maxim Integrated	2,527	18.33000	Active	Phantom Time Chip	Leap Year	-	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 3.7V	1.3mA @ 5V	0°C ~ 70°C	Through Hole	16-DIP (0.300", 7.62mm)	16-PDIP	Details
M41T93ZMY6F IC RTC CLK/CALENDAR SPI 18-SOX STMicroelectronics	609	5.70000	Active	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	7B	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	SPI	2.38V ~ 5.5V	1.8V ~ 5.5V	10µA @ 5.5V	-40°C ~ 85°C	Surface Mount	18-SOX, 18-SOIC with Crystal (7.5mm Width)	18-SOX	Details
DS1339C-2 DS1339 I2C SERIAL RTC Analog Devices Inc./Maxim Integrated	1,661	3.48000	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	Details
MCP79402T-I/MS IC RTC CLK/CALENDAR I2C 8-MSOP Microchip Technology	7,054	1.09500	Active	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 5.5V	1.2µA (Typ) @ 3.3V	-40°C ~ 85°C	Surface Mount	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-MSOP	Details
MCP7940M-I/SN IC RTC CLK/CALENDAR I2C 8-SOIC Microchip Technology	3,424	0.68000	Active	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.8V ~ 5.5V	-	1µA @ 5.5V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC	Details
DS1344E-18+T&R IC RTC CLK/CALENDAR SPI 20-TSSOP Analog Devices Inc./Maxim Integrated	2,166	4.69000	Obsolete	Clock/Calendar	Alarm, Leap Year, NVRAM, Square Wave Output, Trickle Charger	96B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	1.71V ~ 5.5V	1.3V ~ 5.5V	-	-40°C ~ 85°C	Surface Mount	20-TSSOP (0.173", 4.40mm Width)	20-TSSOP	Details
V3020TP8B+ RTC, LOW POWER, 1-BIT I/F, 32KHZ EM Microelectronic	2,509	1.80350	Active	Clock/Calendar	Alarm, Leap Year, RAM	1B	HH:MM:SS	YY-MM-DD-dd	3-Wire Serial	1.2V ~ 5.5V	-	4µA ~ 7µA @ 3V ~ 5V	-40°C ~ 85°C (TA)	Surface Mount	8-TSSOP (0.173", 4.40mm Width)	8-TSSOP	Details

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Clock/Timing - Real Time Clocks

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