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Manufacturers for Clock/Timing - Real Time Clocks

Abracon LLC.
Ambiq Micro, Inc.
ams
AVX Corporation
Diodes Incorporated
Epson
Integrated Device Technology, Inc.
Intersil (Renesas Electronics America)
Maxim Integrated
Microchip Technology
NJR Corporation/NJRC
NXP Semiconductors
ROHM Semiconductor
ABLIC U.S.A. Inc.
STMicroelectronics
Texas Instruments
Part Number Manufacturer / Brand Brife Description Part StatusTypeFeaturesMemory SizeTime FormatDate FormatInterfaceVoltage - SupplyVoltage - Supply, BatteryCurrent - Timekeeping (Max)Operating TemperatureMounting TypePackage / CaseSupplier Device Package
DS1553W-150
 Maxim Integrated IC RTC RAM Y2K 3.3V 120NS 28EDIP ActiveClock/CalendarAlarm, Leap Year, NVSRAM, Watchdog Timer, Y2K8KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V3V2mA @ 3.3V0°C ~ 70°CThrough Hole28-DIP Module (0.600", 15.24mm)28-EDIP
DS1643-70
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 28-EDIP Discontinued at -Clock/CalendarLeap Year, NVSRAM8KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
3mA @ 5V0°C ~ 70°CThrough Hole28-DIP Module (0.600", 15.24mm)28-EDIP
DS1244WP-120
 Maxim Integrated IC RTC PHANTOM PAR 34-PCM ObsoletePhantom Time ChipLeap Year, NVSRAM32KBHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V3V7mA @ 3.3V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1244YP-70
 Maxim Integrated IC RTC PHANTOM PAR 34-PCM ObsoletePhantom Time ChipLeap Year, NVSRAM32KBHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V3V10mA @ 5V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1553W-120
 Maxim Integrated IC RTC RAM Y2K 3.3V 120NS 28EDIP ActiveClock/CalendarAlarm, Leap Year, NVSRAM, Watchdog Timer, Y2K8KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V
-
2mA @ 3.3V0°C ~ 70°CThrough Hole28-DIP Module (0.600", 15.24mm)28-EDIP
DS1553-70
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 28-EDIP Discontinued at -Clock/CalendarAlarm, Leap Year, NVSRAM, Watchdog Timer, Y2K8KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
3mA @ 5V0°C ~ 70°CThrough Hole28-DIP Module (0.600", 15.24mm)28-EDIP
DS1543-70
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 28-EDIP ObsoleteClock/CalendarAlarm, Leap Year, NVSRAM, Watchdog Timer8KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
3mA @ 5V0°C ~ 70°CThrough Hole28-DIP Module (0.600", 15.24mm)28-EDIP
DS1543W-120
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 28-EDIP ObsoleteClock/CalendarAlarm, Leap Year, NVSRAM, Watchdog Timer8KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V
-
2mA @ 3.3V0°C ~ 70°CThrough Hole28-DIP Module (0.600", 15.24mm)28-EDIP
DS1744P-70IND
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 34-PCM ObsoleteClock/CalendarLeap Year, NVSRAM, Y2K32KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V3V4mA @ 5V-40°C ~ 85°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1386P-8-120
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 34-PCM ObsoleteClock/CalendarAlarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer8KBHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V3V4mA @ 5V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1386P-32-120
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 32-PCM ObsoleteClock/CalendarAlarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer32KBHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V3V4mA @ 5V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1244WP-120IND
 Maxim Integrated IC RTC PHANTOM PAR 34-PCM ObsoletePhantom Time ChipLeap Year, NVSRAM32KBHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V3V7mA @ 3.3V-40°C ~ 85°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1643AL-120
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 34-LPM ObsoleteClock/CalendarLeap Year, NVSRAM8KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
4mA @ 5V0°C ~ 70°CSurface Mount34-LPM34-LPM
DS1744W-120
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 28-EDIP ObsoleteClock/CalendarLeap Year, NVSRAM, Y2K32KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V
-
2mA @ 3.3V0°C ~ 70°CThrough Hole28-DIP Module (0.600", 15.24mm)28-EDIP
DS1554-70
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 32-EDIP Discontinued at -Clock/CalendarAlarm, Leap Year, NVSRAM, Watchdog Timer, Y2K32KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
6mA @ 5V0°C ~ 70°CThrough Hole32-DIP Module (0.600", 15.24mm)32-EDIP
DS1554W-120
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 32-EDIP Discontinued at -Clock/CalendarAlarm, Leap Year, NVSRAM, Watchdog Timer, Y2K32KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V
-
4mA @ 3.3V0°C ~ 70°CThrough Hole32-DIP Module (0.600", 15.24mm)32-EDIP
DS1244W-120
 Maxim Integrated IC SRAM 256K 3.3V 120NS 28-DIP ActivePhantom Time ChipLeap Year, NVSRAM32KBHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V
-
7mA @ 3.3V0°C ~ 70°CThrough Hole28-DIP Module (0.600", 15.24mm)28-EDIP
DS1746P-70
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 34-PCM ObsoleteClock/CalendarLeap Year, NVSRAM, Y2K128KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V3V4mA @ 5V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1486P-120
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 34-PCM ObsoleteClock/CalendarAlarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer128KBHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V3.3V4mA @ 5V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1556WP-120
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 34-PCM ObsoleteClock/CalendarAlarm, Leap Year, NVSRAM, Watchdog Timer, Y2K128KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V3V4mA @ 3.3V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1556P-70
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 34-PCM ObsoleteClock/CalendarAlarm, Leap Year, NVSRAM, Watchdog Timer, Y2K128KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V3V6mA @ 5V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1386-8-120
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 32-EDIP ObsoleteClock/CalendarAlarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer8KBHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
4mA @ 5V0°C ~ 70°CThrough Hole32-DIP Module (0.600", 15.24mm)32-EDIP
DS1744W-120IND
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 28-EDIP ObsoleteClock/CalendarLeap Year, NVSRAM, Y2K32KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V
-
2mA @ 3.3V-40°C ~ 85°CThrough Hole28-DIP Module (0.600", 15.24mm)28-EDIP
DS1744-70IND
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 28-EDIP ObsoleteClock/CalendarLeap Year, NVSRAM, Y2K32KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
4mA @ 5V-40°C ~ 85°CThrough Hole28-DIP Module (0.600", 15.24mm)28-EDIP
DS1248YP-70
 Maxim Integrated IC RTC PHANTOM PAR 34-PCM Discontinued at -Phantom Time ChipNVSRAM128KBHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V3V10mA @ 5V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1248WP-120
 Maxim Integrated IC RTC PHANTOM PAR 34-PCM ObsoletePhantom Time ChipNVSRAM128KBHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V3V7mA @ 3.3V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1244W-120IND
 Maxim Integrated IC RTC PHANTOM PAR 28-DIP ObsoletePhantom Time ChipLeap Year, NVSRAM32KBHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V
-
7mA @ 3.3V-40°C ~ 85°CThrough Hole28-DIP Module (0.600", 15.24mm)28-EDIP
DS1746P-70IND
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 34-PCM ObsoleteClock/CalendarLeap Year, NVSRAM, Y2K128KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V3V4mA @ 5V-40°C ~ 85°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1746WP-120IND
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 34-PCM ObsoleteClock/CalendarLeap Year, NVSRAM, Y2K128KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V3V2mA @ 3.3V-40°C ~ 85°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1556P-70IND
 Maxim Integrated IC RTC RAM Y2K 5V 70NS 34-PCM ActiveClock/CalendarAlarm, Leap Year, NVSRAM, Watchdog Timer, Y2K128KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V3V6mA @ 5V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1248WP-120IND
 Maxim Integrated IC RTC PHANTOM PAR 34-PCM ObsoletePhantom Time ChipNVSRAM128KBHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V3V7mA @ 3.3V-40°C ~ 85°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1746W-120
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 32-EDIP ObsoleteClock/CalendarLeap Year, NVSRAM, Y2K128KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V
-
2mA @ 3.3V0°C ~ 70°CThrough Hole32-DIP Module (0.600", 15.24mm)32-EDIP
DS1746-70
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 32-EDIP ObsoleteClock/CalendarLeap Year, NVSRAM, Y2K128KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
4mA @ 5V0°C ~ 70°CThrough Hole32-DIP Module (0.600", 15.24mm)32-EDIP
DS1556-70
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 32-EDIP Discontinued at -Clock/CalendarAlarm, Leap Year, NVSRAM, Watchdog Timer, Y2K128KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
6mA @ 5V0°C ~ 70°CThrough Hole32-DIP Module (0.600", 15.24mm)32-EDIP
DS1556W-120
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 32-EDIP Discontinued at -Clock/CalendarAlarm, Leap Year, NVSRAM, Watchdog Timer, Y2K128KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V
-
4mA @ 3.3V0°C ~ 70°CThrough Hole32-DIP Module (0.600", 15.24mm)32-EDIP
DS1248W-120
 Maxim Integrated IC RTC PHANTOM PAR 32-DIP Discontinued at -Phantom Time ChipNVSRAM128KBHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V
-
7mA @ 3.3V0°C ~ 70°CThrough Hole32-DIP Module (0.600", 15.24mm)32-EDIP
DS1248Y-100IND
 Maxim Integrated IC RTC PHANTOM PAR 32-DIP ObsoletePhantom Time ChipNVSRAM128KBHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
7mA @ 3.3V-40°C ~ 85°CThrough Hole32-DIP Module (0.600", 15.24mm)32-EDIP
DS1746W-120IND
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 32-EDIP ObsoleteClock/CalendarLeap Year, NVSRAM, Y2K128KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V
-
2mA @ 3.3V-40°C ~ 85°CThrough Hole32-DIP Module (0.600", 15.24mm)32-EDIP
DS1746-70IND
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 32-EDIP ObsoleteClock/CalendarLeap Year, NVSRAM, Y2K128KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
4mA @ 5V-40°C ~ 85°CThrough Hole32-DIP Module (0.600", 15.24mm)32-EDIP
DS1248W-120IND
 Maxim Integrated IC RTC PHANTOM PAR 32-DIP ObsoletePhantom Time ChipNVSRAM128KBHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V
-
7mA @ 3.3V-40°C ~ 85°CThrough Hole32-DIP Module (0.600", 15.24mm)32-EDIP
DS1556W-120IND
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 32-EDIP Discontinued at -Clock/CalendarAlarm, Leap Year, NVSRAM, Watchdog Timer, Y2K128KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V
-
4mA @ 3.3V-40°C ~ 85°CThrough Hole32-DIP Module (0.600", 15.24mm)32-EDIP
DS1747P-70
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 34-PCM ObsoleteClock/CalendarLeap Year, NVSRAM, Y2K512KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V3V4mA @ 5V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1747WP-120
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 34-PCM ObsoleteClock/CalendarLeap Year, NVSRAM, Y2K512KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V3V2mA @ 3.3V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1557WP-120
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 34-PCM ObsoleteClock/CalendarAlarm, Leap Year, NVSRAM, Watchdog Timer, Y2K512KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V3V4mA @ 3.3V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1557P-70
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 34-PCM Discontinued at -Clock/CalendarAlarm, Leap Year, NVSRAM, Watchdog Timer, Y2K512KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V3V6mA @ 5V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1647P-120
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 34-PCM ObsoleteClock/CalendarLeap Year, NVSRAM512KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V3V4mA @ 4.5V ~ 5.5V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1747-70
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 32-EDIP ObsoleteClock/CalendarLeap Year, NVSRAM, Y2K512KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
4mA @ 5V0°C ~ 70°CThrough Hole32-DIP Module (0.600", 15.24mm)32-EDIP
DS1747W-120
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 32-EDIP ObsoleteClock/CalendarLeap Year, NVSRAM, Y2K512KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V
-
2mA @ 3.3V0°C ~ 70°CThrough Hole32-DIP Module (0.600", 15.24mm)32-EDIP
DS1251YP-70
 Maxim Integrated IC RTC PHANTOM PAR 34-PCM Discontinued at -Phantom Time ChipLeap Year, NVSRAM512KBHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V3V10mA @ 5V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1251WP-120
 Maxim Integrated IC RTC PHANTOM PAR 34-PCM ObsoletePhantom Time ChipLeap Year, NVSRAM512KBHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V3V7mA @ 3.3V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
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