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      Home / All Manufacturers / Rochester Electronics / Clock/Timing - Real Time Clocks /

      The manufacturer is 'Rochester Electronics'

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        • Operating Temperature
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        • All Manufacturers:

          Rochester Electronics

        Image

        Part Number

        Manufacturer

        Datasheet

        Availability

        Pricing(USD)

        Quantity

        RoHS

        Mounting Type

        Package / Case

        Surface Mount

        Supplier Device Package

        Operating Temperature (Max.)

        Operating Temperature

        Packaging

        JESD-609 Code

        Pbfree Code

        Part Status

        Moisture Sensitivity Level (MSL)

        Number of Terminations

        ECCN Code

        Type

        Terminal Finish

        HTS Code

        Voltage - Supply

        Terminal Position

        Terminal Form

        Peak Reflow Temperature (Cel)

        Supply Voltage

        Terminal Pitch

        Time@Peak Reflow Temperature-Max (s)

        Pin Count

        JESD-30 Code

        Qualification Status

        Supply Voltage-Max (Vsup)

        Temperature Grade

        Supply Voltage-Min (Vsup)

        Interface

        Memory Size

        uPs/uCs/Peripheral ICs Type

        Clock Frequency

        External Data Bus Width

        Number of Timers

        Time Format

        Date Format

        Current - Timekeeping (Max)

        Voltage - Supply, Battery

        Information Access Method

        Features

        Height Seated (Max)

        Length

        Width

        RoHS Status
        ISL12027IV27Z-T

        Mfr Part No

        ISL12027IV27Z-T

        		Rochester Electronics, LLC Datasheet

        -

        -

        Min: 1

        Mult: 1

        Surface Mount

        8-TSSOP (0.173, 4.40mm Width)

        8-TSSOP

        -40°C~85°C

        Tape & Reel (TR)

        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, Watchdog Timer

        ROHS3 Compliant

        ISL12027IV27Z

        Mfr Part No

        ISL12027IV27Z

        		Rochester Electronics, LLC Datasheet

        -

        -

        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, Watchdog Timer

        ROHS3 Compliant

        ISL12027AIB27Z

        Mfr Part No

        ISL12027AIB27Z

        		Rochester Electronics, LLC Datasheet

        -

        -

        Min: 1

        Mult: 1

        Surface Mount

        8-SOIC (0.154, 3.90mm Width)

        8-SOIC

        -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, Watchdog Timer

        ROHS3 Compliant

        ISL12029IB27AZ

        Mfr Part No

        ISL12029IB27AZ

        		Rochester Electronics, LLC Datasheet

        -

        -

        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

        ISL12029AIV27Z

        Mfr Part No

        ISL12029AIV27Z

        		Rochester Electronics, LLC Datasheet

        -

        -

        Min: 1

        Mult: 1

        Surface Mount

        14-TSSOP (0.173, 4.40mm Width)

        14-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, Watchdog Timer

        ROHS3 Compliant

        ISL12028AIB27Z

        Mfr Part No

        ISL12028AIB27Z

        		Rochester Electronics, LLC Datasheet

        -

        -

        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

        ISL12027IBAZ-T

        Mfr Part No

        ISL12027IBAZ-T

        		Rochester Electronics, LLC Datasheet

        -

        -

        Min: 1

        Mult: 1

        Surface Mount

        8-SOIC (0.154, 3.90mm Width)

        8-SOIC

        -40°C~85°C

        Tape & Reel (TR)

        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, Watchdog Timer

        ROHS3 Compliant

        ISL12059IBZ

        Mfr Part No

        ISL12059IBZ

        		Rochester Electronics, LLC Datasheet

        -

        -

        Min: 1

        Mult: 1

        Surface Mount

        8-SOIC (0.154, 3.90mm Width)

        8-SOIC

        -40°C~85°C

        Tube

        Obsolete

        2 (1 Year)

        Clock/Calendar

        1.8V~3.6V

        I2C, 2-Wire Serial

        HH:MM:SS (24 hr)

        YY-MM-DD-dd

        0.65μA @ 1.8V

        Leap Year

        ROHS3 Compliant

        ISL12032IVZ-T

        Mfr Part No

        ISL12032IVZ-T

        		Rochester Electronics, LLC Datasheet

        -

        -

        Min: 1

        Mult: 1

        Surface Mount

        14-TSSOP (0.173, 4.40mm Width)

        14-TSSOP

        -40°C~85°C

        Tape & Reel (TR)

        Obsolete

        1 (Unlimited)

        Time Event Recorder

        2.7V~5.5V

        I2C, 2-Wire Serial

        128B

        HH:MM:SS:hh (12/24 hr)

        YY-MM-DD-dd

        18μA @ 5.5V

        1.8V~5.5V

        Alarm, SRAM, Trickle-Charger

        ROHS3 Compliant

        ISL12023IVZ

        Mfr Part No

        ISL12023IVZ

        		Rochester Electronics, LLC Datasheet

        -

        -

        Min: 1

        Mult: 1

        Surface Mount

        14-TSSOP (0.173, 4.40mm Width)

        14-TSSOP

        -40°C~85°C

        Tube

        Obsolete

        1 (Unlimited)

        Clock/Calendar

        2.7V~5.5V

        I2C, 2-Wire Serial

        128B

        HH:MM:SS (12/24 hr)

        YY-MM-DD-dd

        14μA~15μA @ 3V~5V

        1.8V~5.5V

        Alarm, Daylight Savings, Leap Year, SRAM

        ROHS3 Compliant

        DS1500YE

        Mfr Part No

        DS1500YE

        		Rochester Electronics, LLC Datasheet

        -

        -

        Min: 1

        Mult: 1

        Surface Mount

        32-LFSOP (0.724, 18.40mm Width)

        32-TSOP

        0°C~70°C

        Tray

        Obsolete

        3 (168 Hours)

        Clock/Calendar

        4.5V~5.5V

        Parallel

        256B

        HH:MM:SS (24 hr)

        YY-MM-DD-dd

        5mA @ 4.5V~5.5V

        2.5V~3.7V

        Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K

        ROHS3 Compliant

        DS17485E-3

        Mfr Part No

        DS17485E-3

        		Rochester Electronics, LLC Datasheet

        -

        -

        Min: 1

        Mult: 1

        Surface Mount

        28-TSSOP (0.465, 11.80mm Width)

        28-TSOP

        0°C~70°C

        Tray

        Obsolete

        3 (168 Hours)

        Clock/Calendar

        2.7V~3.7V

        Parallel

        4KB

        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

        ROHS3 Compliant

        DP8573AV

        Mfr Part No

        DP8573AV

        		Rochester Electronics, LLC Datasheet

        -

        -

        Min: 1

        Mult: 1

        Surface Mount

        28-LCC (J-Lead)

        -40°C~85°C

        Tube

        Obsolete

        2A (4 Weeks)

        EAR99

        Clock/Calendar

        8542.39.00.01

        4.5V~5.5V

        Parallel

        HH:MM:SS:hh (12/24 hr)

        YY-MM-DD-dd

        1μA @ 5V

        2.2V~5.1V

        Alarm, Leap Year

        Non-RoHS Compliant

        DS1687-5

        Mfr Part No

        DS1687-5

        		Rochester Electronics, LLC Datasheet

        -

        -

        Min: 1

        Mult: 1

        Through Hole

        24-DIP Module (0.600, 15.24mm)

        24-EDIP

        0°C~70°C

        Tube

        Obsolete

        1 (Unlimited)

        Clock/Calendar

        4.5V~5.5V

        Parallel

        242B

        HH:MM:SS (12/24 hr)

        YY-MM-DD-dd

        3mA @ 5V

        2.5V~3.7V

        Alarm, NVSRAM, Square Wave Output, Y2K

        Non-RoHS Compliant

        DS1743-85

        Mfr Part No

        DS1743-85

        		Rochester Electronics, LLC Datasheet

        -

        -

        Min: 1

        Mult: 1

        Through Hole

        28-DIP Module (0.600, 15.24mm)

        28-EDIP

        0°C~70°C

        Tube

        Obsolete

        3 (168 Hours)

        Clock/Calendar

        4.5V~5.5V

        Parallel

        8KB

        HH:MM:SS (24 hr)

        YY-MM-DD-dd

        3mA @ 5V

        Leap Year, NVSRAM, Y2K

        ROHS3 Compliant

        DS1315-5

        Mfr Part No

        DS1315-5

        		Rochester Electronics, LLC Datasheet

        -

        -

        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

        4.5V~5.5V

        Parallel

        HH:MM:SS:hh (12/24 hr)

        YY-MM-DD-dd

        1.3mA @ 5V

        2.5V~3.7V

        Leap Year

        Non-RoHS Compliant

        DS17285E-3

        Mfr Part No

        DS17285E-3

        		Rochester Electronics, LLC Datasheet

        -

        -

        Min: 1

        Mult: 1

        YES

        70°C

        e0

        no

        Obsolete

        3 (168 Hours)

        28

        TIN LEAD

        DUAL

        GULL WING

        240

        3V

        0.55mm

        20

        28

        R-PDSO-G28

        COMMERCIAL

        3.7V

        COMMERCIAL

        2.7V

        TIMER, REAL TIME CLOCK

        0.032MHz

        8

        1

        PARALLEL, MUXED BUS

        1.2mm

        11.8mm

        8mm

        ROHS3 Compliant

        BQ4845YS-A4

        Mfr Part No

        BQ4845YS-A4

        		Rochester Electronics, LLC Datasheet

        108
        In Stock

        -

        Min: 1

        Mult: 1

        Surface Mount

        28-SOIC (0.295, 7.50mm Width)

        28-SOIC

        0°C~70°C

        Tube

        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

        BQ4845S-A4N

        Mfr Part No

        BQ4845S-A4N

        		Rochester Electronics, LLC Datasheet

        -

        -

        Min: 1

        Mult: 1

        Surface Mount

        28-SOIC (0.295, 7.50mm Width)

        28-SOIC

        -40°C~85°C

        Tube

        Obsolete

        1 (Unlimited)

        Clock/Calendar

        4.75V~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

        BQ4802YDSH

        Mfr Part No

        BQ4802YDSH

        		Rochester Electronics, LLC Datasheet

        -

        -

        Min: 1

        Mult: 1

        Surface Mount

        28-SOIC (0.337, 8.56mm Width) with SNAPHAT Sockets

        28-SOP

        0°C~70°C

        Tube

        Obsolete

        3 (168 Hours)

        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

        2.4V~4V

        Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer

        Non-RoHS Compliant