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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
DS1338U-33
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 8-USOP ObsoleteClock/CalendarLeap Year, NVSRAM, Square Wave Output56BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial3 V ~ 5.5 V1.3 V ~ 3.7 V125µA ~ 200µA @ 3.63V ~ 5.5V-40°C ~ 85°CSurface Mount8-TSSOP, 8-MSOP (0.118", 3.00mm Width)8-uMAX
DS1338U-33/T&R
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 8-USOP ActiveClock/CalendarLeap Year, NVSRAM, Square Wave Output56BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial3 V ~ 5.5 V1.3 V ~ 3.7 V125µA ~ 200µA @ 3.63V ~ 5.5V-40°C ~ 85°CSurface Mount8-TSSOP, 8-MSOP (0.118", 3.00mm Width)8-uMAX
DS1338Z-18
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 8-SOIC ObsoleteClock/CalendarLeap Year, NVSRAM, Square Wave Output56BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.71 V ~ 5.5 V1.3 V ~ 3.7 V100µA @ 1.89V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
DS1338Z-3
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 8-SOIC ObsoleteClock/CalendarLeap Year, NVSRAM, Square Wave Output56BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7 V ~ 5.5 V1.3 V ~ 3.7 V200µA @ 3.3V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
DS1338Z-33
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 8-SOIC ObsoleteClock/CalendarLeap Year, NVSRAM, Square Wave Output56BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial3 V ~ 5.5 V1.3 V ~ 3.7 V125µA ~ 200µA @ 3.63V ~ 5.5V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
DS1340U-18
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 8-USOP ObsoleteClock/CalendarLeap Year, Trickle-Charger
-
HH:MM:SS (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.71 V ~ 5.5 V1.3 V ~ 3.7 V100µA @ 1.89V-40°C ~ 85°CSurface Mount8-TSSOP, 8-MSOP (0.118", 3.00mm Width)8-uMAX
DS1340U-3
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 8-USOP ObsoleteClock/CalendarLeap Year, Trickle-Charger
-
HH:MM:SS (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7 V ~ 5.5 V1.3 V ~ 3.7 V125µA @ 3.3V-40°C ~ 85°CSurface Mount8-TSSOP, 8-MSOP (0.118", 3.00mm Width)8-uMAX
DS1340U-33
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 8-USOP ObsoleteClock/CalendarLeap Year, Trickle-Charger
-
HH:MM:SS (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.97 V ~ 5.5 V1.3 V ~ 5.5 V150µA @ 5.5V-40°C ~ 85°CSurface Mount8-TSSOP, 8-MSOP (0.118", 3.00mm Width)8-uMAX
DS1340U-33/T&R
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 8-USOP ObsoleteClock/CalendarLeap Year, Trickle-Charger
-
HH:MM:SS (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.97 V ~ 5.5 V1.3 V ~ 5.5 V150µA @ 5.5V-40°C ~ 85°CSurface Mount8-TSSOP, 8-MSOP (0.118", 3.00mm Width)8-uMAX
DS1340Z-18
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 8-SOIC ObsoleteClock/CalendarLeap Year, Trickle-Charger
-
HH:MM:SS (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.71 V ~ 5.5 V1.3 V ~ 3.7 V100µA @ 1.89V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
DS1340Z-3
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 8-SOIC ObsoleteClock/CalendarLeap Year, Trickle-Charger
-
HH:MM:SS (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7 V ~ 5.5 V1.3 V ~ 3.7 V125µA @ 3.3V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
DS1340Z-33
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 8-SOIC ObsoleteClock/CalendarLeap Year, Trickle-Charger
-
HH:MM:SS (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.97 V ~ 5.5 V1.3 V ~ 5.5 V150µA @ 5.5V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
DS1340Z-33/T&R
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 8-SOIC ObsoleteClock/CalendarLeap Year, Trickle-Charger
-
HH:MM:SS (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.97 V ~ 5.5 V1.3 V ~ 5.5 V150µA @ 5.5V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
DS1501WEN/T&R
 Maxim Integrated IC RTC WDOG Y2K 3.3V IND 28-TSOP ActiveClock/CalendarAlarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K256BHH:MM:SS (24 hr)YY-MM-DD-ddParallel3 V ~ 3.6 V2.5 V ~ 3.7 V4mA @ 3V ~ 3.6V-40°C ~ 85°CSurface Mount28-TSSOP (0.465", 11.80mm Width)28-TSOP
DS1554-70IND
 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 @ 5V-40°C ~ 85°CThrough Hole32-DIP Module (0.600", 15.24mm)32-EDIP
DS1554P-70IND
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 34-PCM Discontinued at -Clock/CalendarAlarm, Leap Year, NVSRAM, Watchdog Timer, Y2K32KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V3V6mA @ 5V-40°C ~ 85°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1554W-120IND
 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
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4mA @ 3.3V-40°C ~ 85°CThrough Hole32-DIP Module (0.600", 15.24mm)32-EDIP
DS1554WP-120IND
 Maxim Integrated IC RTC RAM Y2K 3.3V 120NS 34-PCM ActiveClock/CalendarAlarm, Leap Year, NVSRAM, Watchdog Timer, Y2K32KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V3V4mA @ 3.3V-40°C ~ 85°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1556WP-120IND
 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 @ 3.3V-40°C ~ 85°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1558W
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 48-LQFP ObsoleteClock/CalendarAlarm, Leap Year, Watchdog Timer, Y2K
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V2.5 V ~ 3.7 V2mA @ 3.3V-40°C ~ 85°CSurface Mount48-LQFP48-LQFP/48-TQFP (7x7)
DS1558W-TRL
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 48-LQFP ObsoleteClock/CalendarAlarm, Leap Year, Watchdog Timer, Y2K
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V2.5 V ~ 3.7 V2mA @ 3.3V-40°C ~ 85°CSurface Mount48-LQFP48-LQFP/48-TQFP (7x7)
DS1558Y
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 48-LQFP ObsoleteClock/CalendarAlarm, Leap Year, Watchdog Timer, Y2K
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V2.5 V ~ 3.7 V6mA @ 5V-40°C ~ 85°CSurface Mount48-LQFP48-LQFP/48-TQFP (7x7)
DS1558Y-TRL
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 48-LQFP ObsoleteClock/CalendarAlarm, Leap Year, Watchdog Timer, Y2K
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V2.5 V ~ 3.7 V6mA @ 5V-40°C ~ 85°CSurface Mount48-LQFP48-LQFP/48-TQFP (7x7)
DS1685EN-3/T&R
 Maxim Integrated IC RTC 3V 64BIT Y2K IND 24TSSOP ActiveClock/CalendarAlarm, NVSRAM, Square Wave Output, Y2K242BHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel2.7 V ~ 3.7 V2.5 V ~ 3.7 V2mA @ 3V-40°C ~ 85°CSurface Mount24-TSSOP (0.173", 4.40mm Width)24-TSSOP
DS1742-100IND
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 24-EDIP Discontinued at -Clock/CalendarLeap Year, NVSRAM, Y2K2KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
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3mA @ 5V-40°C ~ 85°CThrough Hole24-DIP Module (0.600", 15.24mm)24-EDIP
DS1743-100 IND
 Maxim Integrated IC RTC RAM Y2K 5V 100NS 28-EDIP ActiveClock/CalendarLeap Year, NVSRAM, Y2K8KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
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3mA @ 5V-40°C ~ 85°CThrough Hole28-DIP Module (0.600", 15.24mm)28-EDIP
DS17887-3-IND
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 24-EDIP ObsoleteClock/CalendarAlarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output8KBHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel2.7 V ~ 3.7 V2.5 V ~ 3.7 V2mA @ 2.7V ~ 3.7V-40°C ~ 85°CThrough Hole24-DIP Module (0.600", 15.24mm)24-EDIP
MAX6902ETA+T
 Maxim Integrated IC RTC CLOCK/CALENDAR SPI 8-TDFN ObsoleteClock/CalendarAlarm, Leap Year, NVSRAM, Y2K31BHH:MM:SS (12/24 hr)YY-MM-DD-ddSPI2 V ~ 5.5 V
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1.05µA ~ 4.2µA @ 2V ~ 5V-40°C ~ 85°CSurface Mount8-WDFN Exposed Pad8-TDFN (3x3)
DS1284QN+
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 28-PLCC ObsoleteClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer50BHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V2.4 V ~ 3.5 V7mA @ 5V-40°C ~ 85°CSurface Mount28-LCC (J-Lead)28-PLCC (11.51x11.51)
DS1384FP-12+
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 44-MQFP ObsoleteClock/CalendarAlarm, Leap Year, Square Wave Output, Watchdog Timer50BHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V2.4 V ~ 4 V3mA @ 5V0°C ~ 70°CSurface Mount44-QFP44-MQFP (10x10)
DS14285Q+
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 28-PLCC ObsoleteClock/CalendarAlarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output114BHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V2.5 V ~ 3.6 V0.5µA @ 4.5V ~ 5.5V0°C ~ 70°CSurface Mount28-LCC (J-Lead)28-PLCC (11.51x11.51)
DS1742W-150+
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 24-EDIP ObsoleteClock/CalendarLeap Year, NVSRAM, Y2K2KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V
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2mA @ 3.3V0°C ~ 70°CThrough Hole24-DIP Module (0.600", 15.24mm)24-EDIP
DS1743-70+
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 28-EDIP ActiveClock/CalendarLeap Year, NVSRAM, 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
DS1743-100+
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 28-EDIP ObsoleteClock/CalendarLeap Year, NVSRAM, 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
DS1743P-100+
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 34-PCM ObsoleteClock/CalendarLeap Year, NVSRAM, Y2K8KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V3V3mA @ 5V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1284Q+
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 28-PLCC ObsoleteClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer50BHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V2.4 V ~ 3.5 V7mA @ 5V0°C ~ 70°CSurface Mount28-LCC (J-Lead)28-PLCC (11.51x11.51)
DS1284+
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 28-DIP ObsoleteClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer50BHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V2.4 V ~ 3.5 V7mA @ 5V0°C ~ 70°CThrough Hole28-DIP (0.600", 15.24mm)28-PDIP
DS1286+
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 28-EDIP ObsoleteClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer50BHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V2.4 V ~ 3.5 V7mA @ 5V0°C ~ 70°CThrough Hole28-DIP Module (0.61", 15.49mm), 23 Leads28-EDIP
DS1386-32-120+
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 32-DIP ObsoleteClock/CalendarAlarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer32KBHH: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
DS14287+
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 24-EDIP ObsoleteClock/CalendarAlarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output114BHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V2.5 V ~ 3.6 V0.5µA @ 4.5V ~ 5.5V0°C ~ 70°CThrough Hole24-DIP Module (0.600", 15.24mm)24-EDIP
DS1486-120+
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 32-EDIP ObsoleteClock/CalendarAlarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer128KBHH: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
DS1501WEN+
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 28-TSOP ActiveClock/CalendarAlarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K256BHH:MM:SS (24 hr)YY-MM-DD-ddParallel3 V ~ 3.6 V2.5 V ~ 3.7 V4mA @ 3V ~ 3.6V-40°C ~ 85°CSurface Mount28-TSSOP (0.465", 11.80mm Width)28-TSOP
DS1501WE+
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 28-TSOP ObsoleteClock/CalendarAlarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K256BHH:MM:SS (24 hr)YY-MM-DD-ddParallel3 V ~ 3.6 V2.5 V ~ 3.7 V4mA @ 3V ~ 3.6V0°C ~ 70°CSurface Mount28-TSSOP (0.465", 11.80mm Width)28-TSOP
DS1602S+
 Maxim Integrated IC RTC ELAPSED CNT SER 8-SOIC ObsoleteElapsed Time Counter
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BinaryBinary3-Wire Serial4.5 V ~ 5.5 V2.5 V ~ 3.5 V50µA @ 5V-40°C ~ 85°CSurface Mount8-SOIC (0.209", 5.30mm Width)8-SO
DS1602+
 Maxim Integrated IC RTC ELAPSED CNT SER 8-DIP ObsoleteElapsed Time Counter
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-
BinaryBinary3-Wire Serial4.5 V ~ 5.5 V2.5 V ~ 3.5 V50µA @ 5V-40°C ~ 85°CThrough Hole8-DIP (0.300", 7.62mm)8-PDIP
DS1603+
 Maxim Integrated IC RTC ELAPSED CNT SER 7-SIP ObsoleteElapsed Time Counter
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BinaryBinary3-Wire Serial4.5 V ~ 5.5 V3 V ~ 4.5 V50µA @ 5V0°C ~ 70°CThrough Hole14-DIP Module (0.335", 8.51mm)14-EDIP
DS1642-100+
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 24-EDIP ObsoleteClock/CalendarLeap Year, NVSRAM2KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
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3mA @ 5V0°C ~ 70°CThrough Hole24-DIP Module (0.600", 15.24mm)24-EDIP
DS1643-100+
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 28-EDIP ObsoleteClock/CalendarLeap Year, NVSRAM8KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
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3mA @ 5V0°C ~ 70°CThrough Hole28-DIP Module (0.600", 15.24mm)28-EDIP
DS1644-120+
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 28-EDIP ObsoleteClock/CalendarLeap Year, NVSRAM32KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
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4mA @ 4.5V ~ 5.5V0°C ~ 70°CThrough Hole28-DIP Module (0.600", 15.24mm)28-EDIP
DS1644P-120+
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 34-PCM ObsoleteClock/CalendarLeap Year, NVSRAM32KBHH: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
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