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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
BQ3285ES
 Texas Instruments IC RTC CLOCK/CALENDAR PAR 24-SOIC Not For New DesignsClock/CalendarAlarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output242BHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V2.5 V ~ 4 V300µA @ 5V0°C ~ 70°CSurface Mount24-SOIC (0.295", 7.50mm Width)24-SOIC
BQ3285ESS
 Texas Instruments IC RTC CLOCK/CALENDAR PAR 24-QSOP ObsoleteClock/CalendarAlarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output242BHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V2.5 V ~ 4 V300µA @ 5V0°C ~ 70°CSurface Mount24-SSOP (0.154", 3.90mm Width)24-SSOP/QSOP
BQ3285LDSS
 Texas Instruments IC RTC CLOCK/CALENDAR PAR 24-QSOP ObsoleteClock/CalendarAlarm, Daylight Savings, NVSRAM242BHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel2.7 V ~ 5.5 V2.4 V ~ 4 V100µA @ 3V0°C ~ 70°CSurface Mount24-SSOP (0.154", 3.90mm Width)24-SSOP/QSOP
BQ3285LDSSTR
 Texas Instruments IC RTC CLOCK/CALENDAR PAR 24-QSOP ObsoleteClock/CalendarAlarm, Daylight Savings, NVSRAM242BHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel2.7 V ~ 5.5 V2.4 V ~ 4 V100µA @ 3V0°C ~ 70°CSurface Mount24-SSOP (0.154", 3.90mm Width)24-SSOP/QSOP
BQ3285P-SB2
 Texas Instruments IC RTC CLOCK/CALENDAR PAR 24-DIP 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 V
-
0°C ~ 70°CThrough Hole24-DIP (0.600", 15.24mm)24-PDIP
BQ3285S-SB2
 Texas Instruments IC RTC CLOCK/CALENDAR PAR 24-SOP Not For New DesignsClock/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 V
-
0°C ~ 70°CSurface Mount24-SOIC (0.295", 7.50mm Width)24-SOIC
BQ3285S-SB2TR
 Texas Instruments IC RTC CLOCK/CALENDAR PAR 24-SOIC 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 V
-
0°C ~ 70°CSurface Mount24-SOIC (0.295", 7.50mm Width)24-SOIC
BQ3287EAMT
 Texas Instruments IC RTC CLOCK/CALENDAR PAR 24-DIP ObsoleteClock/CalendarAlarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output242BHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
-
0°C ~ 70°CThrough Hole24-DIP Module (0.61", 15.49mm)24-DIP Module (18.42x18.72)
BQ3287EMT
 Texas Instruments IC RTC CLOCK/CALENDAR PAR 24-DIP ObsoleteClock/CalendarAlarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output242BHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
-
0°C ~ 70°CThrough Hole24-DIP Module (0.61", 15.49mm)24-DIP Module (18.42x18.72)
BQ4285S-SB2
 Texas Instruments IC RTC CLOCK/CALENDAR PAR 24-SOP 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 V
-
0°C ~ 70°CSurface Mount24-SOIC (0.295", 7.50mm Width)24-SOIC
BQ4802LYDSH
 Texas Instruments IC RTC CLOCK/CALENDAR PAR 28-SOP ObsoleteClock/CalendarAlarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer
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HH:MM:SS (12/24 hr)YY-MM-DD-ddParallel2.7 V ~ 3.6 V2.4 V ~ 4 V1.5mA (Typ) @ 2.7 V ~ 3.6 V0°C ~ 70°CSurface Mount28-SOIC (0.337", 8.56mm Width) with SNAPHAT Sockets28-SOP
BQ4802LYDW
 Texas Instruments IC RTC CLOCK/CALENDAR PAR 28-SOIC ActiveClock/CalendarAlarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer
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HH:MM:SS (12/24 hr)YY-MM-DD-ddParallel2.7 V ~ 3.6 V2.4 V ~ 4 V1.5mA (Typ) @ 2.7 V ~ 3.6 V0°C ~ 70°CSurface Mount28-SOIC (0.295", 7.50mm Width)28-SOIC
BQ4802LYPW
 Texas Instruments IC RTC CLOCK/CALENDAR PAR 28-TSSOP ActiveClock/CalendarAlarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer
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HH:MM:SS (12/24 hr)YY-MM-DD-ddParallel2.7 V ~ 3.6 V2.4 V ~ 4 V1.5mA (Typ) @ 2.7 V ~ 3.6 V0°C ~ 70°CSurface Mount28-TSSOP (0.173", 4.40mm Width)28-TSSOP
DS1744P-70+
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 34-PCM ActiveClock/CalendarLeap Year, NVSRAM, Y2K32KBHH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V3V4mA @ 5V0°C ~ 70°CSurface Mount34-PowerCap™ Module34-PowerCap Module
DS1746P-70+
 Maxim Integrated IC RTC CLOCK/CALENDAR PAR 34-PCM ActiveClock/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
DS3231S#T&R
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 16-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, TCXO/Crystal
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.3 V ~ 5.5 V2.3 V ~ 5.5 V110µA ~ 170µA @ 3.63V ~ 5.5V0°C ~ 70°CSurface Mount16-SOIC (0.295", 7.50mm Width)16-SOIC
DS3232S#
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 20-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal236BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.3 V ~ 5.5 V2.3 V ~ 5.5 V120µA ~ 160µA @ 3.3V ~ 5.5V0°C ~ 70°CSurface Mount20-SOIC (0.295", 7.50mm Width)20-SOIC
DS3232S#T&R
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 20-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal236BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.3 V ~ 5.5 V2.3 V ~ 5.5 V120µA ~ 160µA @ 3.3V ~ 5.5V0°C ~ 70°CSurface Mount20-SOIC (0.295", 7.50mm Width)20-SOIC
DS3234S#
 Maxim Integrated IC RTC CLOCK/CALENDAR SPI 20-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal256BHH:MM:SS (12/24 hr)YY-MM-DD-ddSPI2 V ~ 5.5 V2 V ~ 3.8 V120µA ~ 160µA @ 3.63V ~ 5.5V0°C ~ 70°CSurface Mount20-SOIC (0.295", 7.50mm Width)20-SOIC
M41T00AUDD1F
 STMicroelectronics IC RTC CLOCK/CALENDAR I2C 16-DFN ActiveClock/CalendarAudio, Leap Year, Trickle-Charger
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HH:MM:SS (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial3 V ~ 3.6 V1.7 V ~ 3.6 V14.3mA @ 3V ~ 3.6V0°C ~ 70°CSurface Mount16-VFDFN Exposed Pad16-DFN (5x4)
M48T02-150PC1
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 24DIP ActiveClock/CalendarLeap Year
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.75 V ~ 5.5 V
-
3mA @ 4.7V ~ 5.5V0°C ~ 70°CThrough Hole24-DIP Module (0.600", 15.24mm)24-PCDIP, CAPHAT®
M48T02-200PC1
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 24-DIP ObsoleteClock/CalendarLeap Year
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.75 V ~ 5.5 V
-
3mA @ 4.7V ~ 5.5V0°C ~ 70°CThrough Hole24-DIP Module (0.600", 15.24mm)24-PCDIP, CAPHAT®
M48T02-70PC1
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 24DIP ActiveClock/CalendarLeap Year
-
HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.75 V ~ 5.5 V
-
3mA @ 4.7V ~ 5.5V0°C ~ 70°CThrough Hole24-DIP Module (0.600", 15.24mm)24-PCDIP, CAPHAT®
M48T08-100PC1
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 28DIP ActiveClock/CalendarLeap Year, Watchdog Timer
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.75 V ~ 5.5 V
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3mA @ 4.7V ~ 5.5V0°C ~ 70°CThrough Hole28-DIP Module (0.600", 15.24mm)28-PCDIP, CAPHAT®
M48T08-150PC1
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 28DIP ActiveClock/CalendarLeap Year, Watchdog Timer
-
HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.75 V ~ 5.5 V
-
3mA @ 4.7V ~ 5.5V0°C ~ 70°CThrough Hole28-DIP Module (0.600", 15.24mm)28-PCDIP, CAPHAT®
M48T12-150PC1
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 24DIP ActiveClock/CalendarLeap Year
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
3mA @ 4.5V ~ 5.5V0°C ~ 70°CThrough Hole24-DIP Module (0.600", 15.24mm)24-PCDIP, CAPHAT®
M48T12-200PC1
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 24DIP ObsoleteClock/CalendarLeap Year
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
3mA @ 4.5V ~ 5.5V0°C ~ 70°CThrough Hole24-DIP Module (0.600", 15.24mm)24-PCDIP, CAPHAT®
M48T12-70PC1
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 24DIP ActiveClock/CalendarLeap Year
-
HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
3mA @ 4.5V ~ 5.5V0°C ~ 70°CThrough Hole24-DIP Module (0.600", 15.24mm)24-PCDIP, CAPHAT®
M48T128Y-70PM1
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 32-DIP ObsoleteClock/CalendarLeap Year
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
4mA @ 4.5V ~ 5.5V0°C ~ 70°CThrough Hole32-DIP Module (0.600", 15.24mm)32-PMDIP
M48T129V-85PM1
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 32-DIP ObsoleteClock/CalendarAlarm, Leap Year, Watchdog Timer
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel3 V ~ 3.6 V
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3mA @ 3V ~ 3.6V0°C ~ 70°CThrough Hole32-DIP Module (0.600", 15.24mm)32-PMDIP
M48T18-100PC1
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 28DIP ActiveClock/CalendarLeap Year, Watchdog Timer
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
3mA @ 4.5V ~ 5.5V0°C ~ 70°CThrough Hole28-DIP Module (0.600", 15.24mm)28-PCDIP, CAPHAT®
M48T18-150PC1
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 28DIP ActiveClock/CalendarLeap Year, Watchdog Timer
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
3mA @ 4.5V ~ 5.5V0°C ~ 70°CThrough Hole28-DIP Module (0.600", 15.24mm)28-PCDIP, CAPHAT®
M48T201V-85MH1F
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 44-SOH ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, Supervisor, Watchdog Timer, Y2K
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel3 V ~ 3.6 V3V2mA @ 3V ~ 3.6V0°C ~ 70°CSurface Mount44-BSOP (0.337", 8.56mm Width) requires SNAPHAT44-SOH
M48T201Y-70MH1F
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 44-SOH ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, Supervisor, Watchdog Timer, Y2K
-
HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V3V3mA @ 4.5V ~ 5.5V0°C ~ 70°CSurface Mount44-BSOP (0.337", 8.56mm Width) requires SNAPHAT44-SOH
M48T248Y-70PM1
 STMicroelectronics IC RTC PHANTOM PAR 32-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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5mA @ 4.5V ~ 5.5V0°C ~ 70°CThrough Hole32-DIP Module (0.600", 15.24mm)32-PMDIP
M48T35AV-10MH1E
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 28SOH ObsoleteClock/CalendarLeap Year
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel3 V ~ 3.6 V
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2mA @ 3V ~ 3.6V0°C ~ 70°CSurface Mount28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets28-SOH
M48T35AV-10MH1F
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 28SOH ActiveClock/CalendarLeap Year
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel3 V ~ 3.6 V
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2mA @ 3V ~ 3.6V0°C ~ 70°CSurface Mount28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets28-SOH
M48T35Y-70MH1E
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 28SOH ObsoleteClock/CalendarLeap Year
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
2mA @ 4.75V ~ 5.5V0°C ~ 70°CSurface Mount28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets28-SOH
M48T35Y-70MH1F
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 28SOH ActiveClock/CalendarLeap Year
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
2mA @ 4.75V ~ 5.5V0°C ~ 70°CSurface Mount28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets28-SOH
M48T35Y-70PC1
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 28DIP ActiveClock/CalendarLeap Year
-
HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
2mA @ 4.75V ~ 5.5V0°C ~ 70°CThrough Hole28-DIP Module (0.600", 15.24mm)28-PCDIP, CAPHAT®
M48T37V-10MH1F
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 44-SOH ActiveClock/CalendarAlarm, Leap Year, Watchdog Timer
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel3 V ~ 3.6 V
-
2mA @ 3V ~ 3.6V0°C ~ 70°CSurface Mount44-BSOP (0.337", 8.56mm Width) requires SNAPHAT44-SOH
M48T37Y-70MH1E
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 44-SOH ObsoleteClock/CalendarAlarm, Leap Year, Watchdog Timer
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
3mA @ 4.5V ~ 5.5V0°C ~ 70°CSurface Mount44-BSOP (0.337", 8.56mm Width) requires SNAPHAT44-SOH
M48T37Y-70MH1F
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 44-SOH ActiveClock/CalendarAlarm, Leap Year, Watchdog Timer
-
HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
3mA @ 4.5V ~ 5.5V0°C ~ 70°CSurface Mount44-BSOP (0.337", 8.56mm Width) requires SNAPHAT44-SOH
M48T512Y-70PM1
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 32-DIP ObsoleteClock/CalendarLeap Year
-
HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
4mA @ 4.5V ~ 5.5V0°C ~ 70°CThrough Hole32-DIP Module (0.600", 15.24mm)32-PMDIP Module
M48T58-70PC1
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 28DIP ActiveClock/CalendarLeap Year
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.75 V ~ 5.5 V
-
3mA @ 4.75V ~ 5.5V0°C ~ 70°CThrough Hole28-DIP Module (0.600", 15.24mm)28-PCDIP, CAPHAT®
M48T58Y-70MH1E
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 28SOH ObsoleteClock/CalendarLeap Year
-
HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
3mA @ 4.5V ~ 5.5V0°C ~ 70°CSurface Mount28-SOIC (0.337", 8.56mm Width) with SNAPHAT Sockets28-SOH
M48T58Y-70MH1F
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 28-SOH ActiveClock/CalendarLeap Year
-
HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
3mA @ 4.5V ~ 5.5V0°C ~ 70°CSurface Mount28-SOIC (0.337", 8.56mm Width) with SNAPHAT Sockets28-SOH
M48T58Y-70PC1
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 28-DIP ActiveClock/CalendarLeap Year
-
HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
3mA @ 4.5V ~ 5.5V0°C ~ 70°CThrough Hole28-DIP Module (0.600", 15.24mm)28-PCDIP, CAPHAT®
M48T59Y-70PC1
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 28DIP ObsoleteClock/CalendarAlarm, Leap Year, Watchdog Timer
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HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
-
3mA @ 4.5V ~ 5.5V0°C ~ 70°CThrough Hole28-DIP Module (0.600", 15.24mm)28-PCDIP, CAPHAT®
M48T86PC1
 STMicroelectronics IC RTC CLOCK/CALENDAR PAR 24-DIP ObsoleteClock/CalendarAlarm, Leap Year, NVSRAM, Square Wave Output114BHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel4.5 V ~ 5.5 V
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15mA @ 4.5V ~ 5.5V0°C ~ 70°CThrough Hole24-DIP Module (0.600", 15.24mm)24-PCDIP, CAPHAT®
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