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
AB-RTCMC-32.768KHZ-ZIZE-S2-T AB-RTCMC-32.768KHZ-ZIZE-S2-T
IC RTC CLK/CALENDAR SPI MODULE
Abracon LLC
112 7.01000 Active Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd SPI 1.1V ~ 5.5V - 0.35µA ~ 0.4µA @ 2V ~ 5V -40°C ~ 85°C Surface Mount 10-SMD Module Module Details
DS1248Y-200 DS1248Y-200
1024K NV SRAM & PHANTOM CLOCK
Analog Devices Inc./Maxim Integrated
1,375 21.02000 Active - - - - - - - - - - - - - Details
DS1553W-120 DS1553W-120
IC RTC RAM Y2K 3.3V 120NS 28EDIP
Analog Devices Inc./Maxim Integrated
1,344 18.07917 Obsolete Clock/Calendar Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K 8KB HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 2.97V ~ 3.63V - 2mA @ 3.3V 0°C ~ 70°C Through Hole 28-DIP Module (0.600", 15.24mm) 28-EDIP Details
DS1243Y-120+ DS1243Y-120+
IC RTC PHANTOM PAR 28-DIP
Analog Devices Inc./Maxim Integrated
9,863 40.58000 Active Phantom Time Chip Leap Year - HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V - 7mA @ 3.3V 0°C ~ 70°C Through Hole 28-DIP Module (0.600", 15.24mm) 28-EDIP Details
PCF8523T/1,118 PCF8523T/1,118
IC RTC CLK/CALENDAR I2C 8-SOIC
NXP USA Inc.
5,560 1.63000 Active Clock/Calendar Alarm, Leap Year, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd I²C, 2-Wire Serial 1.6V ~ 5.5V 1.8V ~ 5.5V 0.5µA @ 2V ~ 5V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SO Details
MCP79510-I/MS MCP79510-I/MS
IC RTC CLK/CALENDAR SPI 10-MSOP
Microchip Technology
3,590 1.29000 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
DS17285S-5 DS17285S-5
IC RTC CLK/CALENDAR PAR 24-SOIC
Analog Devices Inc./Maxim Integrated
252 4.32718 Obsolete Clock/Calendar Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output 2KB 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 Surface Mount 24-SOIC (0.295", 7.50mm Width) 24-SOIC Details
DS3232MZ/V+ DS3232MZ/V+
IC RTC CLK/CALENDAR I2C 8-SOIC
Analog Devices Inc./Maxim Integrated
1,026 11.41000 Not For New Designs Clock/Calendar Alarm, Leap Year, Square Wave Output, SRAM 236B HH:MM:SS (12/24 hr) YY-MM-DD-dd I²C, 2-Wire Serial 2.3V ~ 4.5V 2.3V ~ 4.5V 175µA @ 2.3V ~ 4.5V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SOIC Details
DS1344E-3+T&R DS1344E-3+T&R
IC RTC CLK/CALENDAR SPI 20-TSSOP
Analog Devices Inc./Maxim Integrated
2,676 6.39000 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
DS1685SN-5+ DS1685SN-5+
IC RTC CLK/CALENDAR PAR 24-SOIC
Analog Devices Inc./Maxim Integrated
6,687 11.98000 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
DS17485-5 DS17485-5
IC RTC CLK/CALENDAR PAR 24-DIP
Analog Devices Inc./Maxim Integrated
156 5.92234 Obsolete 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 0°C ~ 70°C Through Hole 24-DIP (0.600", 15.24mm) 24-PDIP Details
MCP79512-I/MS MCP79512-I/MS
IC RTC CLK/CALENDAR SPI 10-MSOP
Microchip Technology
4,067 1.39000 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
DS17885E-5+ DS17885E-5+
IC RTC CLK/CALENDAR PAR 28-TSOP
Analog Devices Inc./Maxim Integrated
3,259 11.97000 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
DS1344E-33+T&R DS1344E-33+T&R
IC RTC CLK/CALENDAR SPI 20-TSSOP
Analog Devices Inc./Maxim Integrated
1,228 3.15000 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
DS3232SN#T&R DS3232SN#T&R
IC RTC CLK/CALENDAR I2C 20-SOIC
Analog Devices Inc./Maxim Integrated
5,185 12.44000 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 -40°C ~ 85°C Surface Mount 20-SOIC (0.295", 7.50mm Width) 20-SOIC Details
MCP7940N-E/SN MCP7940N-E/SN
IC RTC CLK/CALENDAR I2C 8-SOIC
Microchip Technology
7,471 0.92000 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 ~ 125°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SOIC Details
DS1306E+ DS1306E+
IC RTC CLK/CALENDAR SPI 20-TSSOP
Analog Devices Inc./Maxim Integrated
1,287 7.96000 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 Surface Mount 20-TSSOP (0.173", 4.40mm Width) 20-TSSOP Details
DS1337U+ DS1337U+
IC RTC CLK/CALENDAR I2C 8-USOP
Analog Devices Inc./Maxim Integrated
9,955 4.43000 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-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-uMAX/uSOP Details
BQ4845YS-A4TR BQ4845YS-A4TR
IC RTC CLK/CALENDAR PAR 28-SOIC
Texas Instruments
619 3.24000 Obsolete Clock/Calendar Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 2.3V ~ 4V 1.5mA (Typ) @ 4.5 V ~ 5.5 V 0°C ~ 70°C Surface Mount 28-SOIC (0.295", 7.50mm Width) 28-SOIC Details
MCP7940NT-E/SN MCP7940NT-E/SN
IC RTC CLK/CALENDAR I2C 8-SOIC
Microchip Technology
7,638 0.92000 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 ~ 125°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SOIC Details
DS3231S# DS3231S#
IC RTC CLK/CALENDAR I2C 16-SOIC
Analog Devices Inc./Maxim Integrated
6,052 12.89000 Active 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
MCP795W20-I/SL MCP795W20-I/SL
IC RTC CLK/CALENDAR SPI 14-SOIC
Microchip Technology
75 1.85000 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
DS1374C-33#T&R DS1374C-33#T&R
IC RTC BINARY CNT I2C 16-SOIC
Analog Devices Inc./Maxim Integrated
3,083 8.92000 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
BQ32002DR BQ32002DR
IC RTC CLK/CALENDAR I2C 8-SOIC
Texas Instruments
7,061 1.66000 Active Clock/Calendar Leap Year, Square Wave Output, Trickle-Charger - HH:MM:SS (24 hr) YY-MM-DD-dd I²C, 2-Wire Serial 3V ~ 3.6V 1.4V ~ 3.6V 65µA @ 3.3V -40°C ~ 85°C Surface Mount 8-SOIC (0.154", 3.90mm Width) 8-SOIC Details

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