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
M48T35Y-70PC1 IC RTC CLK/CALENDAR PAR 28DIP STMicroelectronics	30	43.30000	Active	Clock/Calendar	Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	2mA @ 4.75V ~ 5.5V	0°C ~ 70°C	Through Hole	28-DIP Module (0.600", 15.24mm)	28-PCDIP, CAPHAT®	Details
DS1673E-3 IC RTC SYSTEM CTRLR SER 20-TSSOP Analog Devices Inc./Maxim Integrated	2,281	5.75000	Obsolete	Portable System Controller	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	2.7V ~ 3.3V	2.5V ~ 3.7V	100µA @ 3V	0°C ~ 70°C	Surface Mount	20-TSSOP (0.173", 4.40mm Width)	20-TSSOP	Details
PT7C4311WEX IC RTC CLK/CALENDAR I2C 8-SOIC Diodes Incorporated	5,152	0.62346	Active	Clock/Calendar	Leap Year, Square Wave Output, Y2K	56B	HH:MM:SS (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.2V ~ 5.5V	2V ~ 5.5V	70µA @ 1.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC	Details
AB-RTCMC-32.768KHZ-IBO5-S3-T IC RTC CLK/CALEND I2C 10CLCC ULP Abracon LLC	198	4.44460	Not For New Designs	Clock/Calendar	Alarm, Square Wave Output, SRAM, Trickle Charge, Watchdog Timer	512B	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.5V ~ 3.6V	1.4V ~ 3.6V	0.29µA ~ 0.33µA @ 1.8V ~ 3V	-40°C ~ 85°C	Surface Mount	Module	Module	Details
DS2417P+T&R IC RTC BINARY CNT SER 6-TSOC Analog Devices Inc./Maxim Integrated	54	3.96000	Active	Binary Counter	Unique ID	-	Binary	Binary	1-Wire® Serial	2.5V ~ 5.5V	-	0.45µA @ 2.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	6-SMD, J-Lead	6-TSOC	Details
R2025S-E2-FE I2C-BUS REAL-TIME CLOCK MODULE Nisshinbo Micro Devices Inc.	7,860	2.41135	Active	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.7V ~ 5.5V	-	120µA ~ 1.8µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	14-SOIC (0.197", 5.00mm Width)	14-SOP	Details
V3020SO8B+ RTC, LOW POWER, 1-BIT I/F, 32KHZ EM Microelectronic	2,017	1.70850	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-SOIC (0.154", 3.90mm Width)	8-SOIC	Details
DS1374U-3+ IC RTC BINARY CNT I2C 10-USOP Analog Devices Inc./Maxim Integrated	9,831	5.99000	Active	Binary Counter	Alarm, Square Wave Output, Trickle-Charger, Watchdog Timer	-	Binary	Binary	I²C, 2-Wire Serial	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
DS1338Z-33+ IC RTC CLK/CALENDAR I2C 8-SOIC Analog Devices Inc./Maxim Integrated	7,964	5.99000	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-SOIC (0.154", 3.90mm Width)	8-SOIC	Details
DS1338U-33+T&R IC RTC CLK/CALENDAR I2C 8-USOP Analog Devices Inc./Maxim Integrated	1,259	5.29000	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
S-35399A02-HRT1 IC RTC CLK/CALENDAR ABLIC Inc.	7,016	0.89869	Not For New Designs	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	Surface Mount	12-UFBGA, WLBGA	12-UFBGA, WLBGA	Details
MCP795W21-I/SL IC RTC CLK/CALENDAR SPI 14-SOIC Microchip Technology	211	1.94000	Active	Clock/Calendar	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8V ~ 3.6V	1.3V ~ 3.6V	1µA @ 1.8V ~ 5.5V	-40°C ~ 85°C	Surface Mount	14-SOIC (0.154", 3.90mm Width)	14-SOIC	Details
DS1747-70IND+ IC RTC CLK/CALENDAR PAR 32-EDIP Analog Devices Inc./Maxim Integrated	8,479	71.34000	Active	Clock/Calendar	Leap Year, NVSRAM, Y2K	512KB	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	4mA @ 5V	-40°C ~ 85°C	Through Hole	32-DIP Module (0.600", 15.24mm)	32-EDIP	Details
MCP79410T-I/ST IC RTC CLK/CALENDAR I2C 8-TSSOP Microchip Technology	6,761	1.08000	Active	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B, 1Kb	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 5.5V	1.2µA @ 3.3V	-40°C ~ 85°C	Surface Mount	8-TSSOP (0.173", 4.40mm Width)	8-TSSOP	Details
ISL12025IBZ-T RTC, NON-VOLATILE Intersil	3,156	3.83000	Obsolete	Clock/Calendar	Alarm, Leap Year, Supervisor, Unique ID, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	2.7V ~ 5.5V	1.8V ~ 5.5V	10µA ~ 20µA @ 2.7V ~ 5.5V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC	Details
DS1501YZN+ IC RTC CLK/CALENDAR PAR 28-SOIC Analog Devices Inc./Maxim Integrated	950	19.59000	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	-40°C ~ 85°C	Surface Mount	28-SOIC (0.295", 7.50mm Width)	28-SOIC	Details
DS1343D-18+ IC RTC CLK/CAL SPI 14TDFN Analog Devices Inc./Maxim Integrated	2,784	2.51000	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	14-WFDFN Exposed Pad	14-TDFN (3x3)	Details
DS1339C-33# IC RTC CLK/CALENDAR I2C 16-SOIC Analog Devices Inc./Maxim Integrated	6,582	10.20000	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	2.97V ~ 5.5V	1.3V ~ 3.7V	200µA @ 5.5V	-40°C ~ 85°C	Surface Mount	16-SOIC (0.295", 7.50mm Width)	16-SOIC	Details
DS1338Z-3+T&R IC RTC CLK/CALENDAR I2C 8-SOIC Analog Devices Inc./Maxim Integrated	17,420	5.29000	Active	Clock/Calendar	Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	2.7V ~ 5.5V	1.3V ~ 3.7V	200µA @ 3.3V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC	Details
DS1374C-33# IC RTC BINARY CNT I2C 16-SOIC Analog Devices Inc./Maxim Integrated	1,059	10.18000	Active	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	16-SOIC (0.295", 7.50mm Width)	16-SOIC	Details
MCP795W20T-I/SL IC RTC CLK/CALENDAR SPI 14-SOIC Microchip Technology	1,713	1.62001	Active	Clock/Calendar	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Watchdog Timer	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8V ~ 3.6V	1.3V ~ 3.6V	1µA @ 1.8V ~ 5.5V	-40°C ~ 85°C	Surface Mount	14-SOIC (0.154", 3.90mm Width)	14-SOIC	Details
DS1501YEN+ IC RTC CLK/CALENDAR PAR 28-TSOP Analog Devices Inc./Maxim Integrated	1,066	7.69000	Obsolete	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	-40°C ~ 85°C	Surface Mount	28-TSSOP (0.465", 11.80mm Width)	28-TSOP	Details
DS1343E-3+ IC RTC CLK/CALENDAR SPI 20-TSSOP Analog Devices Inc./Maxim Integrated	6,574	6.95000	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	20-TSSOP (0.173", 4.40mm Width)	20-TSSOP	Details
ISL1209IU10Z IC RTC EVENT REC I2C 10-MSOP Renesas Electronics America Inc	5,464	3.87000	Active	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-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-MSOP	Details

Clock/Timing - Real Time Clocks

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