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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
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
DS12887A
 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 ~ 4 V15mA @ 4.5V ~ 5.5V0°C ~ 70°CThrough Hole24-DIP Module (0.600", 15.24mm)24-EDIP
DS1302N
 Maxim Integrated IC RTC CLOCK/CALENDAR SER 8-DIP ObsoleteClock/CalendarLeap Year, NVSRAM, Trickle-Charger31BHH:MM:SS (12/24 hr)YY-MM-DD-dd3-Wire Serial2 V ~ 5.5 V2 V ~ 5.5 V0.3µA ~ 1µA @ 2V ~ 5V-40°C ~ 85°CThrough Hole8-DIP (0.300", 7.62mm)8-PDIP
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
DS1302SN
 Maxim Integrated IC RTC CLOCK/CALENDAR SER 8-SOIC ObsoleteClock/CalendarLeap Year, NVSRAM, Trickle-Charger31BHH:MM:SS (12/24 hr)YY-MM-DD-dd3-Wire Serial2 V ~ 5.5 V2 V ~ 5.5 V0.3µA ~ 1µA @ 2V ~ 5V-40°C ~ 85°CSurface Mount8-SOIC (0.209", 5.30mm Width)8-SO
DS1315-5
 Maxim Integrated IC RTC PHANTOM PAR 16-DIP ObsoletePhantom Time ChipLeap Year
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HH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V2.5 V ~ 3.7 V1.3mA @ 5V0°C ~ 70°CThrough Hole16-DIP (0.300", 7.62mm)16-PDIP
DS1305
 Maxim Integrated IC RTC CLOCK/CALENDAR SPI 16-DIP ObsoleteClock/CalendarAlarm, Leap Year, NVSRAM, Trickle-Charger96BHH:MM:SS (12/24 hr)YY-MM-DD-ddSPI2 V ~ 5.5 V2 V ~ 5.5 V25.3µA ~ 81µA @ 2V ~ 5V0°C ~ 70°CThrough Hole16-DIP (0.300", 7.62mm)16-PDIP
DS1685E-3
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 24-TSSOP ObsoleteClock/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 @ 3V0°C ~ 70°CSurface Mount24-TSSOP (0.173", 4.40mm Width)24-TSSOP
DS1302S-16
 Maxim Integrated IC RTC CLOCK/CALENDAR SER 16-SOIC ActiveClock/CalendarLeap Year, NVSRAM, Trickle-Charger31BHH:MM:SS (12/24 hr)YY-MM-DD-dd3-Wire Serial2 V ~ 5.5 V2 V ~ 5.5 V0.3µA ~ 1µA @ 2V ~ 5V0°C ~ 70°CSurface Mount16-SOIC (0.295", 7.50mm Width)16-SOIC
DS1305E
 Maxim Integrated IC RTC CLOCK/CALENDAR SPI 20-TSSOP ObsoleteClock/CalendarAlarm, Leap Year, NVSRAM, Trickle-Charger96BHH:MM:SS (12/24 hr)YY-MM-DD-ddSPI2 V ~ 5.5 V2 V ~ 5.5 V25.3µA ~ 81µA @ 2V ~ 5V0°C ~ 70°CSurface Mount20-TSSOP (0.173", 4.40mm Width)20-TSSOP
DS1743P-100
 Maxim Integrated IC RTC RAM Y2K 5V 100NS 34-PCM ActiveClock/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
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)
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
DS1742W-150
 Maxim Integrated IC RTC RAM Y2K 3.3V 150NS 24EDIP ActiveClock/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
DS1743WP-120
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 34-PCM ObsoleteClock/CalendarLeap Year, NVSRAM, Y2K8KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel2.97 V ~ 3.63 V3V2mA @ 3.3V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS2404B
 Maxim Integrated IC RTC BINARY CNT SER 16-SSOP ObsoleteBinary CounterAlarm, Square Wave Output, SRAM512BBinaryBinary1-Wire® and 3-Wire2.8 V ~ 5.5 V2.8 V ~ 5.5 V500µA @ 5V-40°C ~ 85°CSurface Mount16-SSOP (0.209", 5.30mm Width)16-SSOP
DS12887
 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 ~ 4 V15mA @ 4.5V ~ 5.5V0°C ~ 70°CThrough Hole24-DIP Module (0.600", 15.24mm)24-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
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)
DS17287-5
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 24-EDIP ObsoleteClock/CalendarAlarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output2KBHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V2.5 V ~ 3.7 V3mA @ 4.5V ~ 5.5V0°C ~ 70°CThrough Hole24-DIP Module (0.600", 15.24mm)24-EDIP
DS1742W-120
 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
DS1646P-120
 Maxim Integrated IC RAM TIMEKEEP NV 120NS 34-PCM ActiveClock/CalendarLeap Year, NVSRAM128KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V3V4mA @ 4.5 V ~ 5.5 V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1315S-5
 Maxim Integrated IC RTC PHANTOM PAR 16-SOIC ObsoletePhantom Time ChipLeap Year
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HH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V2.5 V ~ 3.7 V1.3mA @ 5V0°C ~ 70°CSurface Mount16-SOIC (0.295", 7.50mm Width)16-SOIC
DS2404S-001
 Maxim Integrated IC RTC BINARY CNT SER 16SOIC ObsoleteBinary CounterAlarm, Square Wave Output, SRAM512BBinaryBinary1-Wire® and 3-Wire2.8 V ~ 5.5 V2.8 V ~ 5.5 V500µA @ 5V-40°C ~ 85°CSurface Mount16-SOIC (0.295", 7.50mm Width)16-SOIC
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)
DS1744-70
 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
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4mA @ 5V0°C ~ 70°CThrough Hole28-DIP Module (0.600", 15.24mm)28-EDIP
DS1743-70
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 28-EDIP Discontinued at -Clock/CalendarLeap Year, NVSRAM, Y2K8KBHH: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
DS1646-120
 Maxim Integrated IC RAM TIMEKEEP NV 120NS 32-EDIP ActiveClock/CalendarLeap Year, NVSRAM128KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V3V4mA @ 4.5 V ~ 5.5 V0°C ~ 70°CThrough Hole32-DIP Module (0.600", 15.24mm)32-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
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4mA @ 5V0°C ~ 70°CThrough Hole32-DIP Module (0.600", 15.24mm)32-EDIP
DS1244Y-70
 Maxim Integrated IC SRAM 256K 5V 70NS 28-DIP ActivePhantom Time ChipLeap Year, NVSRAM32KBHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
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10mA @ 5V0°C ~ 70°CThrough Hole28-DIP Module (0.600", 15.24mm)28-EDIP
DS1243Y-120
 Maxim Integrated IC RTC PHANTOM PAR 28-DIP ObsoletePhantom Time ChipLeap Year
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HH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
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7mA @ 3.3V0°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
DS1687-5
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 24-EDIP ObsoleteClock/CalendarAlarm, NVSRAM, Square Wave Output, Y2K242BHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V2.5 V ~ 3.7 V3mA @ 5V0°C ~ 70°CThrough Hole24-DIP Module (0.600", 15.24mm)24-EDIP
DS1315EN-33
 Maxim Integrated IC RTC PHANTOM PAR 20-TSSOP ObsoletePhantom Time ChipLeap Year
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HH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel3 V ~ 3.6 V2.5 V ~ 3.7 V1.1mA @ 3.3V-40°C ~ 85°CSurface Mount20-TSSOP (0.173", 4.40mm Width)20-TSSOP
DS1315SN-5
 Maxim Integrated IC RTC PHANTOM PAR 16-SOIC Discontinued at -Phantom Time ChipLeap Year
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HH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V2.5 V ~ 3.7 V1.3mA @ 5V-40°C ~ 85°CSurface Mount16-SOIC (0.295", 7.50mm Width)16-SOIC
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
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
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
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4mA @ 5V0°C ~ 70°CThrough Hole32-DIP Module (0.600", 15.24mm)32-EDIP
DS1746WP-120
 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 @ 3.3V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1693
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 28-EDIP ObsoleteClock/CalendarNVSRAM114BHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel2.7 V ~ 3.3 V, 4.5 V ~ 5.5 V2.5 V ~ 3.7 V2mA @ 3V, 3mA @ 5V0°C ~ 70°CThrough Hole28-DIP Module (0.600", 15.24mm)28-EDIP
DS12C887
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 24-EDIP ObsoleteClock/CalendarAlarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output113BHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V2.5 V ~ 4 V15mA @ 4.5V ~ 5.5V0°C ~ 70°CThrough Hole24-DIP Module (0.600", 15.24mm)24-EDIP
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
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
DS17887-5
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 24-EDIP Discontinued at -Clock/CalendarAlarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output8KBHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V2.5 V ~ 3.7 V3mA @ 4.5V ~ 5.5V0°C ~ 70°CThrough Hole24-DIP Module (0.600", 15.24mm)24-EDIP
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
DS1305EN
 Maxim Integrated IC RTC CLOCK/CALENDAR SPI 20-TSSOP ActiveClock/CalendarAlarm, Leap Year, NVSRAM, Trickle-Charger96BHH:MM:SS (12/24 hr)YY-MM-DD-ddSPI2 V ~ 5.5 V2 V ~ 5.5 V25.3µA ~ 81µA @ 2V ~ 5V-40°C ~ 85°CSurface Mount20-TSSOP (0.173", 4.40mm Width)20-TSSOP
DS1306E
 Maxim Integrated IC RTC CLOCK/CALENDAR SPI 20-TSSOP ObsoleteClock/CalendarAlarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger96BHH:MM:SS (12/24 hr)YY-MM-DD-ddSPI2 V ~ 5.5 V2 V ~ 5.5 V25.3µA ~ 81µA @ 2V ~ 5V0°C ~ 70°CSurface Mount20-TSSOP (0.173", 4.40mm Width)20-TSSOP
DS1685S-5
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 24-SOIC ObsoleteClock/CalendarAlarm, NVSRAM, Square Wave Output, Y2K242BHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V2.5 V ~ 3.7 V3mA @ 5V0°C ~ 70°CSurface Mount24-SOIC (0.295", 7.50mm Width)24-SOIC
DS1306EN
 Maxim Integrated IC RTC CLOCK/CALENDAR SPI 20-TSSOP ObsoleteClock/CalendarAlarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger96BHH:MM:SS (12/24 hr)YY-MM-DD-ddSPI2 V ~ 5.5 V2 V ~ 5.5 V25.3µA ~ 81µA @ 2V ~ 5V-40°C ~ 85°CSurface Mount20-TSSOP (0.173", 4.40mm Width)20-TSSOP
DS2417P
 Maxim Integrated IC RTC BINARY CNT SER 6-TSOC ObsoleteBinary CounterUnique ID
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BinaryBinary1-Wire® Serial2.5 V ~ 5.5 V
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0.45µA @ 2.5V ~ 5.5V-40°C ~ 85°CSurface Mount6-LSOJ (0.148", 3.76mm Width)6-TSOC
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