Clock/Timing - Real Time Clocks

1,966 parts
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
DS1746WP-120+ DS1746WP-120+
IC RTC CLK/CALENDAR PAR 34-PCM
Analog Devices Inc./Maxim Integrated
9,681 51.13000 Active Clock/Calendar Leap Year, NVSRAM, Y2K 128KB HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 2.97V ~ 3.63V 3V 2mA @ 3.3V 0°C ~ 70°C Surface Mount 34-PowerCap™ Module 34-PowerCap Module Details
ISL12029IB27Z-T ISL12029IB27Z-T
RTC, NON-VOLATILE, 1 TIMER(S)
Intersil
2,290 4.29000 Obsolete Clock/Calendar Alarm, Leap Year, Supervisor, 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 14-SOIC (0.154", 3.90mm Width) 14-SOIC Details
MCP79411T-I/ST MCP79411T-I/ST
IC RTC CLK/CALENDAR I2C 8-TSSOP
Microchip Technology
8,269 1.03000 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
DS1554-70+ DS1554-70+
IC RTC CLK/CALENDAR PAR 32-EDIP
Analog Devices Inc./Maxim Integrated
532 42.29000 Active Clock/Calendar Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K 32KB HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V - 6mA @ 5V 0°C ~ 70°C Through Hole 32-DIP Module (0.600", 15.24mm) 32-EDIP Details
MCP7940N-I/SN MCP7940N-I/SN
IC RTC CLK/CALENDAR I2C 8-SOIC
Microchip Technology
3,794 0.76000 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 1.3V ~ 5.5V 1.2µA @ 3.3V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SOIC Details
DS1744-70IND+ DS1744-70IND+
IC RTC CLK/CALENDAR PAR 28-EDIP
Analog Devices Inc./Maxim Integrated
1,029 57.53000 Active Clock/Calendar Leap Year, NVSRAM, Y2K 32KB HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V - 4mA @ 5V -40°C ~ 85°C Through Hole 28-DIP Module (0.600", 15.24mm) 28-EDIP Details
BQ4802LYDW BQ4802LYDW
IC RTC CLK/CALENDAR PAR 28-SOIC
Texas Instruments
7,873 5.58519 Active Clock/Calendar Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 2.7V ~ 3.6V 2.4V ~ 4V 1.5mA (Typ) @ 2.7 V ~ 3.6 V 0°C ~ 70°C Surface Mount 28-SOIC (0.295", 7.50mm Width) 28-SOIC Details
DS17885E-5 DS17885E-5
IC RTC CLK/CALENDAR PAR 28-TSOP
Analog Devices Inc./Maxim Integrated
2,067 11.93750 Obsolete Clock/Calendar Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output 8KB HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 2.5V ~ 3.7V 3mA @ 4.5V ~ 5.5V 0°C ~ 70°C Surface Mount 28-TSSOP (0.465", 11.80mm Width) 28-TSOP Details
DS1391U-18+ DS1391U-18+
IC RTC CLK/CALENDAR SPI 10-USOP
Analog Devices Inc./Maxim Integrated
2,813 5.99000 Active Clock/Calendar Alarm, Leap Year, Square Wave Output, Trickle-Charger - HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd SPI 1.71V ~ 1.89V 1.3V ~ 3.7V 100µA @ 1.71V ~ 1.89V -40°C ~ 85°C Surface Mount 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) 10-uMAX/uSOP Details
PCF8563TS/4,118 PCF8563TS/4,118
IC RTC CLK/CALENDAR I2C 8-TSSOP
NXP USA Inc.
8,651 1.62000 Active Clock/Calendar Alarm, Leap Year, Watchdog Timer - HH:MM:SS (24 hr) YY-MM-DD-dd I²C, 2-Wire Serial 1.8V ~ 5.5V - 0.6µA ~ 0.75µA @ 2V ~ 5V -40°C ~ 85°C Surface Mount 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-TSSOP Details
ISL12028IBZ-T ISL12028IBZ-T
RTC, VOLATILE
Intersil
1,458 3.47000 Obsolete Clock/Calendar Alarm, Leap Year, Supervisor, 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 14-SOIC (0.154", 3.90mm Width) 14-SOIC Details
MCP79410-I/MS MCP79410-I/MS
IC RTC CLK/CALENDAR I2C 8-MSOP
Microchip Technology
9,670 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, 8-MSOP (0.118", 3.00mm Width) 8-MSOP Details
ISL12026IBZ-T7A ISL12026IBZ-T7A
IC RTC CLK/CALENDAR I2C 8-SOIC
Renesas Electronics America Inc
1,932 6.49000 Last Time Buy Clock/Calendar Alarm, Leap Year - 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
PCF8563TS/5,118 PCF8563TS/5,118
IC RTC CLK/CALENDAR I2C 8-TSSOP
NXP USA Inc.
8,594 1.24000 Active Clock/Calendar Alarm, Leap Year, Watchdog Timer - HH:MM:SS (24 hr) YY-MM-DD-dd I²C, 2-Wire Serial 1.8V ~ 5.5V - 0.6µA ~ 0.75µA @ 2V ~ 5V -40°C ~ 85°C Surface Mount 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-TSSOP Details
DP8573AVX/NOPB DP8573AVX/NOPB
DP8573A REAL TIME CLOCK (RTC)
National Semiconductor
1,200 18.56000 Active Clock/Calendar Alarm, Leap Year - HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 2.2V ~ 5.1V 1µA @ 5V -40°C ~ 85°C Surface Mount 28-LCC (J-Lead) 28-PLCC (11.51x11.51) Details
DS1338Z-18+T&R DS1338Z-18+T&R
IC RTC CLK/CALENDAR I2C 8-SOIC
Analog Devices Inc./Maxim Integrated
7,373 2.95183 Active 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 8-SOIC (0.154", 3.90mm Width) 8-SOIC Details
DS1244WP-120+ DS1244WP-120+
IC RTC PHANTOM PAR 34-PCM
Analog Devices Inc./Maxim Integrated
5,062 37.04875 Active Phantom Time Chip Leap Year, NVSRAM 32KB HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd Parallel 2.97V ~ 3.63V 3V 7mA @ 3.3V 0°C ~ 70°C Surface Mount 34-PowerCap™ Module 34-PowerCap Module Details
MCP79522T-I/MS MCP79522T-I/MS
IC RTC CLK/CALENDAR SPI 10-MSOP
Microchip Technology
3,056 1.30000 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
DS1343D-3+T&R DS1343D-3+T&R
IC RTC CLK/CAL SPI 14TDFN
Analog Devices Inc./Maxim Integrated
5,322 2.81250 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
DS1743W-150+ DS1743W-150+
IC RTC CLK/CALENDAR PAR 28-EDIP
Analog Devices Inc./Maxim Integrated
5,956 15.12000 Obsolete - - - - - - - - - - - - - Details
DS1557WP-120IND DS1557WP-120IND
IC RTC CLK/CALENDAR PAR 34-PCM
Analog Devices Inc./Maxim Integrated
196 29.81375 Obsolete Clock/Calendar Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K 512KB HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 2.97V ~ 3.63V 3V 4mA @ 3.3V -40°C ~ 85°C Surface Mount 34-PowerCap™ Module 34-PowerCap Module Details
1339-31DCGI8 1339-31DCGI8
IC RTC CLK/CALENDAR I2C 8-SOIC
Renesas Electronics America Inc
8,313 2.04930 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 3.3V ~ 5.5V 1.3V ~ 3.7V 200µA @ 3.63V ~ 5.5V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SOIC Details
DS1685EN-5 DS1685EN-5
IC RTC CLK/CALENDAR PAR 24-TSSOP
Analog Devices Inc./Maxim Integrated
127 4.51000 Obsolete 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-TSSOP (0.173", 4.40mm Width) 24-TSSOP Details
DS1318E+ DS1318E+
IC RTC ELAPSED CNT PAR 24-TSSOP
Analog Devices Inc./Maxim Integrated
7,277 6.76000 Active Elapsed Time Counter Alarm, Square Wave Output - Binary Binary Parallel 3V ~ 3.6V 1.6V ~ 3.7V 150µA @ 3V ~ 3.6V -40°C ~ 85°C Surface Mount 24-TSSOP (0.173", 4.40mm Width) 24-TSSOP Details

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