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
MCP795W21T-I/SL MCP795W21T-I/SL
IC RTC CLK/CALENDAR SPI 14-SOIC
Microchip Technology
4,625 1.71250 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
V3020TP8A+ V3020TP8A+
ULTRA LOW POWER 1-BIT 32KHZ RTC,
EM Microelectronic
1,000 3.34000 Active Clock/Calendar Alarm, Leap Year, RAM 1B HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd 3-Wire Serial 1.2V ~ 5.5V - 0.8µA @ 5V -40°C ~ 85°C (TA) Surface Mount 8-TSSOP (0.173", 4.40mm Width) 8-TSSOP Details
DS1248W-120IND+ DS1248W-120IND+
IC RTC PHANTOM PAR 32-DIP
Analog Devices Inc./Maxim Integrated
16 35.32000 Obsolete Phantom Time Chip NVSRAM 128KB HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd Parallel 2.97V ~ 3.63V - 7mA @ 3.3V -40°C ~ 85°C Through Hole 32-DIP Module (0.600", 15.24mm) 32-EDIP Details
ISL12057IBZ-T ISL12057IBZ-T
IC RTC CLK/CALENDAR I2C 8-SOIC
Renesas Electronics America Inc
5,000 2.73000 Active Clock/Calendar Alarm, Leap Year - HH:MM:SS (12/24 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
DS1244Y-70+ DS1244Y-70+
IC RTC PHANTOM PAR 28-DIP
Analog Devices Inc./Maxim Integrated
901 46.01000 Active Phantom Time Chip Leap Year, NVSRAM 32KB HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V - 10mA @ 5V 0°C ~ 70°C Through Hole 28-DIP Module (0.600", 15.24mm) 28-EDIP Details
DS1339U-33+ DS1339U-33+
IC RTC CLK/CALENDAR I2C 8-USOP
Analog Devices Inc./Maxim Integrated
896 6.42000 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 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-uMAX/uSOP Details
PT7C4337AWEX PT7C4337AWEX
IC RTC CAL I2C/2-WIRE SER 8SOIC
Diodes Incorporated
4,695 0.57036 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 - 0.8µA @ 1.3V ~ 1.8V -40°C ~ 85°C (TA) Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SOIC Details
DS3231S/T&R DS3231S/T&R
IC RTC CLK/CALENDAR I2C 16-SOIC
Analog Devices Inc./Maxim Integrated
1,561 4.51000 Obsolete Clock/Calendar Alarm, Leap Year, Square Wave Output, TCXO/Crystal - HH:MM:SS (12/24 hr) YY-MM-DD-dd I²C, 2-Wire Serial 2.3V ~ 5.5V 2.3V ~ 5.5V 110µA ~ 170µA @ 3.63V ~ 5.5V 0°C ~ 70°C Surface Mount 16-SOIC (0.295", 7.50mm Width) 16-SOIC Details
DS12885T+ DS12885T+
IC RTC CLK/CALENDAR PAR 32-TQFP
Analog Devices Inc./Maxim Integrated
9,594 14.21000 Active 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 0°C ~ 70°C Surface Mount 32-TQFP 32-TQFP (7x7) Details
M41T66Q6F M41T66Q6F
IC RTC CLK/CALENDAR I2C 16-QFN
STMicroelectronics
7,636 1.16805 Obsolete Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - HH:MM:SS:hh (24 hr) YY-MM-DD-dd I²C, 2-Wire Serial 1.5V ~ 4.4V - 0.9µA ~ 1.1µA @ 1.5V ~ 4.4V -40°C ~ 85°C Surface Mount 16-VFQFN Exposed Pad 16-QFN (3x3) Details
MCP7940MT-I/MS MCP7940MT-I/MS
IC RTC CLK/CALENDAR I2C 8-MSOP
Microchip Technology
6,814 0.71000 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-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-MSOP Details
MCP79410T-I/SN MCP79410T-I/SN
IC RTC CLK/CALENDAR I2C 8-SOIC
Microchip Technology
4,440 1.04000 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-SOIC (0.154", 3.90mm Width) 8-SOIC Details
DS17487-5IND+ DS17487-5IND+
IC RTC CLK/CALENDAR PAR 24-EDIP
Analog Devices Inc./Maxim Integrated
2,281 29.87000 Active Clock/Calendar Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output 4KB HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 2.5V ~ 3.7V 3mA @ 4.5V ~ 5.5V -40°C ~ 85°C Through Hole 24-DIP Module (0.600", 15.24mm) 24-EDIP Details
MCP79402-I/MS MCP79402-I/MS
IC RTC CLK/CALENDAR I2C 8-MSOP
Microchip Technology
2,279 1.08000 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
ECS-RTC-SOP8-5101A-TR ECS-RTC-SOP8-5101A-TR
IC RTC CLK/CALENDAR I2C MODULE
ECS Inc.
2,722 0.85000 Active Clock/Calendar Alarm, Leap Year - HH:MM:SS YY-MM-DD-dd I²C, Serial 1.6V ~ 5.5V - 0.5µA ~ 0.52µA @ 3V ~ 5V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SOP Details
M41ST87WSS6F M41ST87WSS6F
IC RTC CLK/CALENDAR I2C 20-SSOP
STMicroelectronics
5,668 7.30000 Active Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer 128B HH:MM:SS:hh (24 hr) YY-MM-DD-dd I²C, 2-Wire Serial 2.7V ~ 3.6V 2.5V ~ 3.6V 0.5mA @ 2.7V ~ 3.6V -40°C ~ 85°C Surface Mount 20-SSOP (0.209", 5.30mm Width) 20-SSOP Details
PT7C4302AWEX PT7C4302AWEX
REAL TIME CLOCK SO-8
Diodes Incorporated
7,902 0.52163 Active Clock/Calendar Leap Year, NVSRAM, Square Wave Output, Trickle-Charger 31B HH:MM:SS (12/24 hr) YY-MM-DD-dd 3-Wire Serial 1.2V ~ 5.5V 1.2V ~ 5.5V 25.3µA ~ 81µA @ 2V ~ 5V -40°C ~ 85°C (TA) Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SOIC Details
PCF8563T/F4,118 PCF8563T/F4,118
IC RTC CLK/CALENDAR I2C 8-SOIC
NXP USA Inc.
9,984 1.48000 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-SOIC (0.154", 3.90mm Width) 8-SO Details
MCP7940M-I/P MCP7940M-I/P
IC RTC CLK/CALENDAR I2C 8DIP
Microchip Technology
8,883 0.74000 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 Through Hole 8-DIP (0.300", 7.62mm) 8-PDIP Details
DP8573AV DP8573AV
REAL TIME CLOCK, VOLATILE, 0 TIM
National Semiconductor
2,352 19.46000 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
MCP79511T-I/MN MCP79511T-I/MN
IC RTC CLK/CALENDAR SPI 10-TDFN
Microchip Technology
8,087 1.22001 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-WFDFN Exposed Pad 10-TDFN (3x3) Details
MAX6917EO30+ MAX6917EO30+
IC RTC I2C COMPAT 20-QSOP
Analog Devices Inc./Maxim Integrated
2,690 5.84980 Obsolete Clock/Calendar/Supervisor - 96B HH:MM:SS (12/24 hr) YY-MM-DD-dd I²C, 2-Wire Serial 2.7V ~ 3.3V - - -40°C ~ 85°C Surface Mount 20-SSOP (0.154", 3.90mm Width) 20-QSOP Details
DS1338C-18# DS1338C-18#
IC RTC CLK/CALENDAR I2C 16-SOIC
Analog Devices Inc./Maxim Integrated
3,536 6.21174 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 16-SOIC (0.295", 7.50mm Width) 16-SOIC Details
DS1742-70+ DS1742-70+
IC RTC CLK/CALENDAR PAR 24-EDIP
Analog Devices Inc./Maxim Integrated
4,374 15.11000 Obsolete Clock/Calendar Leap Year, NVSRAM, Y2K 2KB HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V - 3mA @ 5V 0°C ~ 70°C Through Hole 24-DIP Module (0.600", 15.24mm) 24-EDIP Details

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