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
BQ3285ESTR IC RTC CLK/CALENDAR PAR 24-SOIC Texas Instruments	5,387	2.72000	Obsolete	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	242B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 4V	300µA @ 5V	0°C ~ 70°C	Surface Mount	24-SOIC (0.295", 7.50mm Width)	24-SOIC	Details
DS1302SN+ IC RTC CLK/CALENDAR SER 8-SOIC Analog Devices Inc./Maxim Integrated	5,889	5.14000	Active	Clock/Calendar	Leap Year, NVSRAM, Trickle-Charger	31B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	2V ~ 5.5V	2V ~ 5.5V	0.3µA ~ 1µA @ 2V ~ 5V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.209", 5.30mm Width)	8-SOIC	Details
DS1501YZ+ IC RTC CLK/CALENDAR PAR 28-SOIC Analog Devices Inc./Maxim Integrated	20	11.72000	Active	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K	256B	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 3.7V	5mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	28-SOIC (0.295", 7.50mm Width)	28-SOIC	Details
PT7C4563WE IC RTC CAL I2C/2-WIRE SER 8SOIC Diodes Incorporated	4,133	0.80560	Active	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.3V ~ 5.5V	-	0.65µA ~ 0.85µA @ 3V ~ 5V	-40°C ~ 85°C (TA)	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC	Details
DS1678S+ IC RTC EVENT REC I2C 8-SOIC Analog Devices Inc./Maxim Integrated	2,376	8.35000	Active	Time Event Recorder	Alarm, Leap Year, NVSRAM, Y2K	32B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	4.5V ~ 5.5V	2.6V ~ 3.5V	-	-40°C ~ 85°C	Surface Mount	8-SOIC (0.209", 5.30mm Width)	8-SOIC	Details
DS1682S+T&R IC RTC ELAPSED CNT I2C 8-SOIC Analog Devices Inc./Maxim Integrated	46	6.15000	Active	Elapsed Time Counter	Alarm, EEPROM	10B	Binary	Binary	I²C, 2-Wire Serial	2.5V ~ 5.5V	-	4µA ~ 15µA @ 3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC	Details
DS1685SN-3+ IC RTC CLK/CALENDAR PAR 24-SOIC Analog Devices Inc./Maxim Integrated	21	9.07000	Active	Clock/Calendar	Alarm, NVSRAM, Square Wave Output, Y2K	242B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	2.7V ~ 3.7V	2.5V ~ 3.7V	2mA @ 3V	-40°C ~ 85°C	Surface Mount	24-SOIC (0.295", 7.50mm Width)	24-SOIC	Details
DS1375T 2-WIRE DIGITAL INPUT RTC Analog Devices Inc./Maxim Integrated	3,797	0.73000	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	Details
DS1340Z-3+ IC RTC CLK/CALENDAR I2C 8-SOIC Analog Devices Inc./Maxim Integrated	7,229	4.66000	Active	Clock/Calendar	Leap Year, Trickle-Charger	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	2.7V ~ 5.5V	1.3V ~ 3.7V	125µA @ 3.3V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC	Details
ECS-RTC-3225-5609-TR IC RTC CLK/CALENDAR I2C MODULE ECS Inc.	3,723	5.81000	Active	Clock/Calendar	-	-	HH:MM:SS	YY-MM-DD	I²C	1.6V ~ 5V, 2.5V ~ 5V	1.6V ~ 5V	3µA @ 5V	-40°C ~ 85°C	Surface Mount	10-SMD, No Lead	10-SMD	Details
DS1685QN-5+ IC RTC CLK/CALENDAR PAR 28-PLCC Analog Devices Inc./Maxim Integrated	7,342	8.24100	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	28-LCC (J-Lead)	28-PLCC (11.51x11.51)	Details
DS1306+ IC RTC CLK/CALENDAR SPI 16-DIP Analog Devices Inc./Maxim Integrated	2,336	7.00000	Active	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, 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	0°C ~ 70°C	Through Hole	16-DIP (0.300", 7.62mm)	16-PDIP	Details
DS1244W-120+ IC RTC PHANTOM PAR 28-DIP Analog Devices Inc./Maxim Integrated	3,250	32.02000	Active	Phantom Time Chip	Leap Year, NVSRAM	32KB	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Parallel	2.97V ~ 3.63V	-	7mA @ 3.3V	0°C ~ 70°C	Through Hole	28-DIP Module (0.600", 15.24mm)	28-EDIP	Details
DS1284+ IC RTC CLK/CALENDAR PAR 28-DIP Analog Devices Inc./Maxim Integrated	1,993	8.02000	Obsolete	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	50B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.4V ~ 3.5V	7mA @ 5V	0°C ~ 70°C	Through Hole	28-DIP (0.600", 15.24mm)	28-PDIP	Details
RS5C372B-E2-F IC REAL TIME CLOCK 2 WIRE Nisshinbo Micro Devices Inc.	2,255	0.84000	Active	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.7V ~ 6V	-	0.9µA ~ 2µA @ 3V ~ 6V	-40°C ~ 85°C	Surface Mount	8-LSSOP (0.173", 4.40mm Width)	8-SSOP	Details
DS1343E-33+ IC RTC CLK/CALENDAR SPI 20-TSSOP Analog Devices Inc./Maxim Integrated	4,473	6.10000	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	20-TSSOP (0.173", 4.40mm Width)	20-TSSOP	Details
MCP79521T-I/MS IC RTC CLK/CALENDAR SPI 10-MSOP Microchip Technology	2,531	1.49000	Active	Clock/Calendar	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8V ~ 3.6V	1.3V ~ 3.6V	1µA @ 1.8V ~ 3.6V	-40°C ~ 85°C	Surface Mount	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-MSOP	Details
DS3232S#T&R IC RTC CLK/CALENDAR I2C 20-SOIC Analog Devices Inc./Maxim Integrated	8,477	9.64000	Active	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal	236B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	2.3V ~ 5.5V	2.3V ~ 5.5V	120µA ~ 160µA @ 3.3V ~ 5.5V	0°C ~ 70°C	Surface Mount	20-SOIC (0.295", 7.50mm Width)	20-SOIC	Details
DS1251Y-70+ IC RTC PHANTOM PAR 32-DIP Analog Devices Inc./Maxim Integrated	60	40.17000	Active	Phantom Time Chip	Leap Year, NVSRAM	512KB	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	10mA @ 5V	0°C ~ 70°C	Through Hole	32-DIP Module (0.600", 15.24mm)	32-EDIP	Details
DS1337S+T&R IC RTC CLK/CALENDAR I2C 8-SOIC Analog Devices Inc./Maxim Integrated	671	3.29000	Active	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	Details
ISL12059IBZ RTC, NON-VOLATILE Intersil	4,187	1.84000	Obsolete	Clock/Calendar	Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.8V ~ 3.6V	-	0.65µA @ 1.8V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC	Details
DS1339BU+T IC RTC CLK/CALENDAR I2C 8-UMAX Analog Devices Inc./Maxim Integrated	3,000	4.56000	Active	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.71V ~ 5.5V	1.3V ~ 3.7V	200µA @ 1.71V ~ 5.5V	-40°C ~ 85°C	Surface Mount	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-uMAX/uSOP	Details
MCP79522-I/MS IC RTC CLK/CALENDAR SPI 10-MSOP Microchip Technology	7,093	1.49000	Active	Clock/Calendar	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8V ~ 3.6V	1.3V ~ 3.6V	1µA @ 1.8V ~ 3.6V	-40°C ~ 85°C	Surface Mount	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-MSOP	Details
DS17885-3+ IC RTC CLK/CALENDAR PAR 24-DIP Analog Devices Inc./Maxim Integrated	71	11.01000	Obsolete	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	8KB	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-DIP (0.600", 15.24mm)	24-PDIP	Details

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Clock/Timing - Real Time Clocks

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