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  • All Products
  • Integrated Circuits (ICs)
  • Clock/Timing - Real Time Clocks
Image Part # Manufacturer Description Availability Pricing Quantity Mounting TypePackage / CaseSurface MountSupplier Device PackageOperating Temperature (Max.)Operating TemperaturePackagingJESD-609 CodePbfree CodePart StatusMoisture Sensitivity Level (MSL)Number of TerminationsTypeTerminal FinishVoltage - SupplyTerminal PositionPeak Reflow Temperature (Cel)Supply VoltageTerminal PitchTime@Peak Reflow Temperature-Max (s)Pin CountJESD-30 CodeQualification StatusTemperature GradeInterfaceMemory SizeClock FrequencyExternal Data Bus WidthNumber of TimersTime FormatDate FormatCurrent - Timekeeping (Max)Voltage - Supply, BatteryInformation Access MethodFeaturesHeight Seated (Max)LengthWidthRoHS Status
Image Part # Manufacturer Description Availability Pricing Quantity Mounting TypePackage / CaseSurface MountSupplier Device PackageOperating Temperature (Max.)Operating TemperaturePackagingJESD-609 CodePbfree CodePart StatusMoisture Sensitivity Level (MSL)Number of TerminationsTypeTerminal FinishVoltage - SupplyTerminal PositionPeak Reflow Temperature (Cel)Supply VoltageTerminal PitchTime@Peak Reflow Temperature-Max (s)Pin CountJESD-30 CodeQualification StatusTemperature GradeInterfaceMemory SizeClock FrequencyExternal Data Bus WidthNumber of TimersTime FormatDate FormatCurrent - Timekeeping (Max)Voltage - Supply, BatteryInformation Access MethodFeaturesHeight Seated (Max)LengthWidthRoHS Status
Rochester Electronics, LLC DS17885-3
Mfr. Part #
DS17885-3
Twicea Part #
699-476-DS17885-3
Rochester Electronics, LLC
DS17885 REAL-TIME CLOCK
Datasheet Compare
    Min.:1
    Mult.:1
    Through Hole 24-DIP (0.600, 15.24mm) NO - - 0°C~70°C Tube e3 yes Obsolete 1 (Unlimited) 24 Clock/Calendar MATTE TIN 2.7V~3.7V DUAL 260 3V 2.54mm 30 24 R-PDIP-T24 COMMERCIAL - Parallel 8KB 0.032MHz 8 1 HH:MM:SS (12/24 hr) YY-MM-DD-dd 2mA @ 2.7V~3.7V 2.5V~3.7V - Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output 5.08mm 31.75mm 15.24mm ROHS3 Compliant
    DS17885-3
    DS17885-3

    699-476-DS17885-3 Rochester Electronics, LLC
    RoHS :
    Package : -
    In Stock : -
    1 : -
    Rochester Electronics, LLC DS1315-33
    Mfr. Part #
    DS1315-33
    Twicea Part #
    699-476-DS1315-33
    Rochester Electronics, LLC
    DS1315 PHANTOM TIME CHIP
    Datasheet Compare
      Min.:1
      Mult.:1
      Through Hole 16-DIP (0.300, 7.62mm) - 16-PDIP - 0°C~70°C Tube - - Obsolete 1 (Unlimited) - Phantom Time Chip - 3V~3.6V - - - - - - - - - Parallel - - - - HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd 1.1mA @ 3.3V 2.5V~3.7V - Leap Year - - - Non-RoHS Compliant
      DS1315-33
      DS1315-33

      699-476-DS1315-33 Rochester Electronics, LLC
      RoHS :
      Package : -
      In Stock : -
      1 : -
      Rochester Electronics, LLC X1228S14IZ
      Mfr. Part #
      X1228S14IZ
      Twicea Part #
      699-476-X1228S14IZ
      Rochester Electronics, LLC
      RTC, VOLATILE
      Datasheet Compare
        Min.:1
        Mult.:1
        Surface Mount 14-SOIC (0.154, 3.90mm Width) YES - - -40°C~85°C Tube e3 yes Obsolete 3 (168 Hours) 14 Clock/Calendar MATTE TIN 2.7V~5.5V DUAL 260 5V 1.27mm 40 14 R-PDSO-G14 COMMERCIAL - I2C, 2-Wire Serial - 0.032MHz - 1 HH:MM:SS (12/24 hr) YY-MM-DD-dd 10μA~20μA @ 2.7V~5V 1.8V~5.5V I2C Alarm, Leap Year, Supervisor, Watchdog Timer 1.7272mm 8.6614mm 3.9116mm ROHS3 Compliant
        X1228S14IZ
        X1228S14IZ

        699-476-X1228S14IZ Rochester Electronics, LLC
        RoHS :
        Package : -
        In Stock : -
        1 : -
        Rochester Electronics, LLC BQ4285P-SB2
        Mfr. Part #
        BQ4285P-SB2
        Twicea Part #
        699-476-BQ4285P-SB2
        Rochester Electronics, LLC
        RTC, NON-VOLATILE
        Datasheet Compare
          Min.:1
          Mult.:1
          Through Hole 24-DIP (0.600, 15.24mm) - 24-PDIP - 0°C~70°C Tube - - Obsolete 3 (168 Hours) - Clock/Calendar - 4.5V~5.5V - - - - - - - - - Parallel 114B - - - HH:MM:SS (12/24 hr) YY-MM-DD-dd - 2.5V~4V - Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output - - - ROHS3 Compliant
          BQ4285P-SB2
          BQ4285P-SB2

          699-476-BQ4285P-SB2 Rochester Electronics, LLC
          RoHS :
          Package : -
          In Stock : -
          1 : -
          Rochester Electronics, LLC DS1670E
          Mfr. Part #
          DS1670E
          Twicea Part #
          699-476-DS1670E
          Rochester Electronics, LLC
          PORTABLE SYSTEM CONTROLLER
          Datasheet Compare
            Min.:1
            Mult.:1
            Surface Mount 20-TSSOP (0.173, 4.40mm Width) - 20-TSSOP - 0°C~70°C Tube - - Obsolete 1 (Unlimited) - Portable System Controller - 2.97V~3.63V - - - - - - - - - 3-Wire Serial - - - - HH:MM:SS (12/24 hr) YY-MM-DD-dd 100μA @ 3.3V 2.5V~3.7V - Alarm, Leap Year, Watchdog Timer - - - Non-RoHS Compliant
            DS1670E
            DS1670E

            699-476-DS1670E Rochester Electronics, LLC
            RoHS :
            Package : -
            In Stock : -
            1 : -
            Rochester Electronics, LLC BQ4850YMA-85N
            Mfr. Part #
            BQ4850YMA-85N
            Twicea Part #
            699-476-BQ4850YMA-85N
            Rochester Electronics, LLC
            RTC, NON-VOLATILE
            Datasheet Compare
              Min.:1
              Mult.:1
              Through Hole 32-DIP Module (0.61, 15.49mm) - 32-DIP Module (18.42x52.96) - -40°C~85°C Tube - - Obsolete 3 (168 Hours) - Clock/Calendar - 4.5V~5.5V - - - - - - - - - Parallel - - - - HH:MM:SS (24 hr) YY-MM-DD-dd 1mA @ 4.5V~5.5V - - Alarm - - - ROHS3 Compliant
              BQ4850YMA-85N
              BQ4850YMA-85N

              699-476-BQ4850YMA-85N Rochester Electronics, LLC
              RoHS :
              Package : -
              In Stock : -
              1 : -
              Rochester Electronics, LLC DS1742-85
              Mfr. Part #
              DS1742-85
              Twicea Part #
              699-476-DS1742-85
              Rochester Electronics, LLC
              DS1742 Y2KC NV TIMEKEEPING RAM
              Datasheet Compare
                Min.:1
                Mult.:1
                - - - - - - - - - Obsolete 3 (168 Hours) - - - - - - - - - - - - - - - - - - - - - - - - - - - ROHS3 Compliant
                DS1742-85
                DS1742-85

                699-476-DS1742-85 Rochester Electronics, LLC
                RoHS :
                Package : -
                In Stock : -
                1 : -
                Rochester Electronics, LLC DS1670S
                Mfr. Part #
                DS1670S
                Twicea Part #
                699-476-DS1670S
                Rochester Electronics, LLC
                PORTABLE SYSTEM CONTROLLER
                Datasheet Compare
                  Min.:1
                  Mult.:1
                  Surface Mount 20-SOIC (0.295, 7.50mm Width) - 20-SOIC - 0°C~70°C Tube - - Obsolete 1 (Unlimited) - Portable System Controller - 2.97V~3.63V - - - - - - - - - 3-Wire Serial - - - - HH:MM:SS (12/24 hr) YY-MM-DD-dd 100μA @ 3.3V 2.5V~3.7V - Alarm, Leap Year, Watchdog Timer - - - Non-RoHS Compliant
                  DS1670S
                  DS1670S

                  699-476-DS1670S Rochester Electronics, LLC
                  RoHS :
                  Package : -
                  In Stock : -
                  1 : -
                  Rochester Electronics, LLC BQ4850YMA-85
                  Mfr. Part #
                  BQ4850YMA-85
                  Twicea Part #
                  699-476-BQ4850YMA-85
                  Rochester Electronics, LLC
                  RTC, NON-VOLATILE
                  Datasheet Compare
                    Min.:1
                    Mult.:1
                    Through Hole 32-DIP Module (0.61, 15.49mm) - 32-DIP Module (18.42x42.8) - 0°C~70°C Tray - - Obsolete 3 (168 Hours) - Clock/Calendar - 4.5V~5.5V - - - - - - - - - Parallel - - - - HH:MM:SS (24 hr) YY-MM-DD-dd 1mA @ 4.5V~5.5V - - Alarm - - - ROHS3 Compliant
                    BQ4850YMA-85
                    BQ4850YMA-85

                    699-476-BQ4850YMA-85 Rochester Electronics, LLC
                    RoHS :
                    Package : -
                    In Stock : -
                    1 : -
                    Rochester Electronics, LLC DS1254YB-100
                    Mfr. Part #
                    DS1254YB-100
                    Twicea Part #
                    699-476-DS1254YB-100
                    Rochester Electronics, LLC
                    2M X 8 NV SRAM, PHANTOM CLOCK
                    Datasheet Compare
                      Min.:1
                      Mult.:1
                      Surface Mount 168-BGA YES - - 0°C~70°C Tray e0 no Obsolete 3 (168 Hours) 41 Phantom Time Chip TIN LEAD 4.5V~5.5V BOTTOM NOT SPECIFIED 5V 1.27mm NOT SPECIFIED 41 S-PBGA-B41 COMMERCIAL - Parallel 2MB - 8 - HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd 7mA @ 3.3V 3V - Leap Year, NVSRAM 5.92mm 40mm 40mm Non-RoHS Compliant
                      DS1254YB-100
                      DS1254YB-100

                      699-476-DS1254YB-100 Rochester Electronics, LLC
                      RoHS :
                      Package : -
                      In Stock : -
                      1 : -
                      Rochester Electronics, LLC ISL12025IVZ
                      Mfr. Part #
                      ISL12025IVZ
                      Twicea Part #
                      699-476-ISL12025IVZ
                      Rochester Electronics, LLC
                      RTC, NON-VOLATILE
                      Datasheet Compare
                        Min.:1
                        Mult.:1
                        Surface Mount 8-TSSOP (0.173, 4.40mm Width) - 8-TSSOP - -40°C~85°C Tube - - Obsolete 1 (Unlimited) - Clock/Calendar - 2.7V~5.5V - - - - - - - - - I2C, 2-Wire Serial - - - - HH:MM:SS (12/24 hr) YY-MM-DD-dd 10μA~20μA @ 2.7V~5.5V 1.8V~5.5V - Alarm, Leap Year, Supervisor, Unique ID, Watchdog Timer - - - ROHS3 Compliant
                        ISL12025IVZ
                        ISL12025IVZ

                        699-476-ISL12025IVZ Rochester Electronics, LLC
                        RoHS :
                        Package : -
                        In Stock : -
                        1 : -
                        Rochester Electronics, LLC PCF2123BS/1,512
                        Mfr. Part #
                        PCF2123BS/1,512
                        Twicea Part #
                        699-476-PCF2123BS/1,512
                        Rochester Electronics, LLC
                        RTC, VOLATILE
                        Datasheet Compare
                          Min.:1
                          Mult.:1
                          - - - - - - - - - Obsolete 3 (168 Hours) - - - - - - - - - - - - - - - - - - - - - - - - - - - ROHS3 Compliant
                          PCF2123BS/1,512
                          PCF2123BS/1,512

                          699-476-PCF2123BS/1,512 Rochester Electronics, LLC
                          RoHS :
                          Package : -
                          In Stock : -
                          1 : -
                          Rochester Electronics, LLC ISL12029AIB27Z
                          Mfr. Part #
                          ISL12029AIB27Z
                          Twicea Part #
                          699-476-ISL12029AIB27Z
                          Rochester Electronics, LLC
                          REAL TIME CLOCK
                          Datasheet Compare
                            Min.:1
                            Mult.:1
                            Surface Mount 14-SOIC (0.154, 3.90mm Width) - 14-SOIC - -40°C~85°C Tube - - Obsolete 2 (1 Year) - Clock/Calendar - 2.7V~5.5V - - - - - - - - - I2C, 2-Wire Serial - - - - HH:MM:SS (12/24 hr) YY-MM-DD-dd 10μA~20μA @ 2.7V~5.5V 1.8V~5.5V - Alarm, Leap Year, Supervisor, Watchdog Timer - - - ROHS3 Compliant
                            ISL12029AIB27Z
                            ISL12029AIB27Z

                            699-476-ISL12029AIB27Z Rochester Electronics, LLC
                            RoHS :
                            Package : -
                            In Stock : -
                            1 : -
                            Rochester Electronics, LLC BQ4852YMC-85
                            Mfr. Part #
                            BQ4852YMC-85
                            Twicea Part #
                            699-476-BQ4852YMC-85
                            Rochester Electronics, LLC
                            RTC, NON-VOLATILE
                            Datasheet Compare
                            1132 In Stock
                              Min.:1
                              Mult.:1
                              - - - - - - - - - Obsolete 3 (168 Hours) - - - - - - - - - - - - - - - - - - - - - - - - - - - Non-RoHS Compliant
                              BQ4852YMC-85
                              BQ4852YMC-85

                              699-476-BQ4852YMC-85 Rochester Electronics, LLC
                              RoHS :
                              Package : -
                              In Stock : 1132
                              1 : -
                              Rochester Electronics, LLC BQ4285EP
                              Mfr. Part #
                              BQ4285EP
                              Twicea Part #
                              699-476-BQ4285EP
                              Rochester Electronics, LLC
                              RTC, VOLATILE
                              Datasheet Compare
                              7 In Stock
                                Min.:1
                                Mult.:1
                                Through Hole 24-DIP (0.600, 15.24mm) - 24-PDIP - 0°C~70°C Tube - - Obsolete 3 (168 Hours) - Clock/Calendar - 4.5V~5.5V - - - - - - - - - Parallel 114B - - - HH:MM:SS (12/24 hr) YY-MM-DD-dd 300μA @ 5V 2.5V~4V - Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output - - - Non-RoHS Compliant
                                BQ4285EP
                                BQ4285EP

                                699-476-BQ4285EP Rochester Electronics, LLC
                                RoHS :
                                Package : -
                                In Stock : 7
                                1 : -
                                Rochester Electronics, LLC BQ3285LSS
                                Mfr. Part #
                                BQ3285LSS
                                Twicea Part #
                                699-476-BQ3285LSS
                                Rochester Electronics, LLC
                                RTC, VOLATILE
                                Datasheet Compare
                                285 In Stock
                                  Min.:1
                                  Mult.:1
                                  Surface Mount 24-SSOP (0.154, 3.90mm Width) YES - 70°C - Tube e0 yes Obsolete 3 (168 Hours) 24 Clock/Calendar TIN LEAD 2.7V~3.6V DUAL NOT SPECIFIED 3.15V - NOT SPECIFIED - R-PDSO-G24 COMMERCIAL COMMERCIAL Parallel 242B - 8 1 HH:MM:SS (12/24 hr) YY-MM-DD-dd - 2.4V~4V - Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output - - - Non-RoHS Compliant
                                  BQ3285LSS
                                  BQ3285LSS

                                  699-476-BQ3285LSS Rochester Electronics, LLC
                                  RoHS :
                                  Package : -
                                  In Stock : 285
                                  1 : -
                                  Rochester Electronics, LLC DS1371U
                                  Mfr. Part #
                                  DS1371U
                                  Twicea Part #
                                  699-476-DS1371U
                                  Rochester Electronics, LLC
                                  32-BIT BINARY COUNTER WDOG CLOCK
                                  Datasheet Compare
                                    Min.:1
                                    Mult.:1
                                    Surface Mount 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) - 8-uMAX - -40°C~85°C Tube - - Obsolete 1 (Unlimited) - Binary Counter - 1.7V~5.5V - - - - - - - - - I2C, 2-Wire Serial - - - - Binary Binary 1.3μA @ 1.7V~5.5V - - Alarm, Square Wave Output, Watchdog Timer - - - Non-RoHS Compliant
                                    DS1371U
                                    DS1371U

                                    699-476-DS1371U Rochester Electronics, LLC
                                    RoHS :
                                    Package : -
                                    In Stock : -
                                    1 : -
                                    Rochester Electronics, LLC BQ4845YS-A4TR
                                    Mfr. Part #
                                    BQ4845YS-A4TR
                                    Twicea Part #
                                    699-476-BQ4845YS-A4TR
                                    Rochester Electronics, LLC
                                    RTC, NON-VOLATILE, 1 TIMER(S)
                                    Datasheet Compare
                                      Min.:1
                                      Mult.:1
                                      Surface Mount 28-SOIC (0.295, 7.50mm Width) - 28-SOIC - 0°C~70°C Tape & Reel (TR) - - Obsolete 1 (Unlimited) - Clock/Calendar - 4.5V~5.5V - - - - - - - - - Parallel - - - - HH:MM:SS (12/24 hr) YY-MM-DD-dd 1.5mA Typ @ 4.5 V~5.5 V 2.3V~4V - Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer - - - ROHS3 Compliant
                                      BQ4845YS-A4TR
                                      BQ4845YS-A4TR

                                      699-476-BQ4845YS-A4TR Rochester Electronics, LLC
                                      RoHS :
                                      Package : -
                                      In Stock : -
                                      1 : -
                                      Rochester Electronics, LLC BQ3285ESTR
                                      Mfr. Part #
                                      BQ3285ESTR
                                      Twicea Part #
                                      699-476-BQ3285ESTR
                                      Rochester Electronics, LLC
                                      RTC, NON-VOLATILE
                                      Datasheet Compare
                                        Min.:1
                                        Mult.:1
                                        Surface Mount 24-SOIC (0.295, 7.50mm Width) - 24-SOIC - 0°C~70°C Tape & Reel (TR) - - Obsolete 1 (Unlimited) - Clock/Calendar - 4.5V~5.5V - - - - - - - - - Parallel 242B - - - HH:MM:SS (12/24 hr) YY-MM-DD-dd 300μA @ 5V 2.5V~4V - Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output - - - ROHS3 Compliant
                                        BQ3285ESTR
                                        BQ3285ESTR

                                        699-476-BQ3285ESTR Rochester Electronics, LLC
                                        RoHS :
                                        Package : -
                                        In Stock : -
                                        1 : -
                                        Rochester Electronics, LLC BQ3285LDSSTR
                                        Mfr. Part #
                                        BQ3285LDSSTR
                                        Twicea Part #
                                        699-476-BQ3285LDSSTR
                                        Rochester Electronics, LLC
                                        RTC, NON-VOLATILE
                                        Datasheet Compare
                                          Min.:1
                                          Mult.:1
                                          Surface Mount 24-SSOP (0.154, 3.90mm Width) - 24-SSOP/QSOP - 0°C~70°C Tape & Reel (TR) - - Obsolete 2 (1 Year) - Clock/Calendar - 2.7V~5.5V - - - - - - - - - Parallel 242B - - - HH:MM:SS (12/24 hr) YY-MM-DD-dd 100μA @ 3V 2.4V~4V - Alarm, Daylight Savings, NVSRAM - - - ROHS3 Compliant
                                          BQ3285LDSSTR
                                          BQ3285LDSSTR

                                          699-476-BQ3285LDSSTR Rochester Electronics, LLC
                                          RoHS :
                                          Package : -
                                          In Stock : -
                                          1 : -
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                                          Integrated Circuits (ICs)

                                          Clock/Timing - Real Time Clocks definition: A real-time clock (RTC) is a computer clock (most often in the form of an integrated circuit) that keeps track of the current time. Although... Clock/Timing - Real Time Clocks Product Listing: DS17885-3 ,DS1315-33,X1228S14IZ,BQ4285P-SB2,DS1670E.Integrated Circuits (ICs) type:Embedded - Microcontrollers(134273),Memory(116337),PMIC - Voltage Regulators - Linear(107072),PMIC - Supervisors(101983),Embedded - FPGAs (Field Programmable Gate Array)(62862) .Clock/Timing - Real Time Clocks has 233 pieces of spot stock price information, you can click the "RFQ" button to confirm the inventory and price with the Twicea.
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