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    Real Time Clocks

    制造商 Series Package/Case Packaging Product Status Programmable Type Features Memory Size Time Format Date Format Interface Voltage - Supply Voltage - Supply, Battery Current - Timekeeping (Max) Operating Temperature Mounting Type Grade Qualification Supplier Device Package























































































































































































































































































































































































































































































































































































































































































































































































































































































































































































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    Photo Mfr. Part # Availability Price Quantity Datasheet Series Package/Case Packaging Product Status Programmable Type Features Memory Size Time Format Date Format Interface Voltage - Supply Voltage - Supply, Battery Current - Timekeeping (Max) Operating Temperature Mounting Type Grade Qualification Supplier Device Package
    RX-4035SAB0 PURE SN

    RX-4035SAB0 PURE SN

    IC RTC TIME EVENT REC SPI 14SOP

    EPSON

    3,397
    RFQ
    RX-4035SAB0 PURE SN

    Datasheet

    - - Tape & Reel (TR) Active - - - - - - - - - - - - - - -
    RTC-8564JE0:ROHS

    RTC-8564JE0:ROHS

    IC RTC CLK/CALENDAR I2C 20VSOJ

    EPSON

    3,802
    RFQ
    RTC-8564JE0:ROHS

    Datasheet

    RTC-8564JE 20-LSSOJ (0.213", 5.40mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Alarm, Y2K - HH:MM:SS YY-MM-DD-dd I2C, 2-Wire Serial 1.8V ~ 5.5V - 0.7µA ~ 0.8µA @ 3V ~ 5V -40°C ~ 85°C Surface Mount - - 20-VSOJ
    AB0814-T3

    AB0814-T3

    IC RTC CLK/CALENDAR SPI 16QFN

    Abracon LLC

    3,816
    RFQ
    AB0814-T3

    Datasheet

    - 16-VFQFN Exposed Pad Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Alarm, Leap Year, SRAM, Trickle-Charger, Watchdog Timer 256B HH:MM:SS:hh YY-MM-DD-dd SPI 1.7V ~ 3.6V 1.5V ~ 3.6V 0.17µA ~ 0.22µA @ 1.8V ~ 3V -40°C ~ 85°C Surface Mount - - 16-QFN (3x3)
    AB1803-T3

    AB1803-T3

    IC RTC CLK/CALENDAR I2C 16QFN

    Abracon LLC

    2,673
    RFQ
    AB1803-T3

    Datasheet

    - 16-VFQFN Exposed Pad Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Alarm, Leap Year, SRAM, Trickle-Charger 64B HH:MM:SS:hh YY-MM-DD-dd I2C, 2-Wire Serial 1.7V ~ 3.6V 1.5V ~ 3.6V 0.17µA ~ 0.22µA @ 1.8V ~ 3V -40°C ~ 85°C Surface Mount - - 16-QFN (3x3)
    AB1813-T3

    AB1813-T3

    IC RTC CLK/CALENDAR SPI 16QFN

    Abracon LLC

    2,918
    RFQ
    AB1813-T3

    Datasheet

    - 16-VFQFN Exposed Pad Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Alarm, Leap Year, SRAM, Trickle-Charger 64B HH:MM:SS:hh YY-MM-DD-dd SPI 1.7V ~ 3.6V 1.5V ~ 3.6V 0.17µA ~ 0.22µA @ 1.8V ~ 3V -40°C ~ 85°C Surface Mount - - 16-QFN (3x3)
    AB0804-T3

    AB0804-T3

    IC RTC CLK/CALENDAR I2C 16QFN

    Abracon LLC

    4,572
    RFQ
    AB0804-T3

    Datasheet

    - 16-VFQFN Exposed Pad Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Alarm, Leap Year, SRAM, Trickle-Charger, Watchdog Timer 256B HH:MM:SS:hh YY-MM-DD-dd I2C, 2-Wire Serial 1.7V ~ 3.6V 1.5V ~ 3.6V 0.17µA ~ 0.22µA @ 1.8V ~ 3V -40°C ~ 85°C Surface Mount - - 16-QFN (3x3)
    M41T65Q6F

    M41T65Q6F

    IC RTC CLK/CALENDAR I2C 16QFN

    STMicroelectronics

    3,105
    RFQ
    M41T65Q6F

    Datasheet

    Timekeeper® 16-VFQFN Exposed Pad Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Watchdog Timer - HH:MM:SS:hh (24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 1.3V ~ 4.4V - 0.7µA ~ 0.95µA @ 1.3V ~ 4.4V -40°C ~ 85°C Surface Mount - - 16-QFN (3x3)
    DS1390U-18+T&R

    DS1390U-18+T&R

    DS1390U-18+T&R

    Analog Devices Inc./Maxim Integrated

    2,809
    RFQ
    DS1390U-18+T&R

    Datasheet

    - 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Tape & Reel (TR) Active - Clock/Calendar Alarm, Leap Year, Square Wave Output, Trickle-Charger - HH:MM:SS:hh (12/24 hr) YY-MM-DD-dd SPI, 4-Wire Serial 1.71V ~ 1.89V 1.3V ~ 3.7V 100µA @ 1.71V ~ 1.89V -40°C ~ 85°C (TA) Surface Mount - - 10-uMAX/uSOP
    DS1305EN/T&R

    DS1305EN/T&R

    IC RTC CLK/CALENDAR SPI 20TSSOP

    Analog Devices Inc./Maxim Integrated

    2,730
    RFQ
    DS1305EN/T&R

    Datasheet

    - 20-TSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Alarm, Leap Year, NVSRAM, Trickle-Charger 96B HH:MM:SS (12/24 hr) YY-MM-DD-dd SPI 2V ~ 5.5V 2V ~ 5.5V 25.3µA ~ 81µA @ 2V ~ 5V -40°C ~ 85°C Surface Mount - - 20-TSSOP
    RV-8564-C2-32.768KHZ-10PPM-TA-QC

    RV-8564-C2-32.768KHZ-10PPM-TA-QC

    IC RTC CLK/CALENDAR I2C 10SON

    Micro Crystal AG

    3,226
    RFQ
    RV-8564-C2-32.768KHZ-10PPM-TA-QC

    Datasheet

    C2 10-TDFN Exposed Pad Tape & Reel (TR) Active Not Verified Clock/Calendar Alarm, Leap Year, Programmable Clock Output, Timer - HH:MM:SS (24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 1V ~ 5.5V - 0.35µA @ 3V -40°C ~ 85°C (TA) Surface Mount - - 10-SON (5x3.2)
    RX-4045NBAA0 PURE SN

    RX-4045NBAA0 PURE SN

    IC RTC CLK/CALENDAR SPI 22SON

    EPSON

    2,939
    RFQ
    RX-4045NBAA0 PURE SN

    Datasheet

    - - Tape & Reel (TR) Active - - - - - - - - - - - - - - -
    RX-8035LCB0 PURE SN

    RX-8035LCB0 PURE SN

    IC RTC EVENT REC I2C 12VSOJ

    EPSON

    3,015
    RFQ
    RX-8035LCB0 PURE SN

    Datasheet

    RX-8035LC 12-TFSOJ (0.094", 2.40mm Width) Tape & Reel (TR) Active Not Verified Time Event Recorder Alarm - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 2.4V ~ 5.5V 1V ~ 5.5V 2.5µA @ 3V -40°C ~ 85°C Surface Mount - - 12-VSOJ
    AB1814-T3

    AB1814-T3

    IC RTC CLK/CALENDAR SPI 16QFN

    Abracon LLC

    4,261
    RFQ
    AB1814-T3

    Datasheet

    - 16-VFQFN Exposed Pad Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Alarm, Leap Year, SRAM, Trickle-Charger, Watchdog Timer 256B HH:MM:SS:hh YY-MM-DD-dd SPI 1.7V ~ 3.6V 1.5V ~ 3.6V 0.17µA ~ 0.22µA @ 1.8V ~ 3V -40°C ~ 85°C Surface Mount - - 16-QFN (3x3)
    AB1804-T3

    AB1804-T3

    IC RTC CLK/CALENDAR I2C 16QFN

    Abracon LLC

    4,256
    RFQ
    AB1804-T3

    Datasheet

    - 16-VFQFN Exposed Pad Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Alarm, Leap Year, SRAM, Trickle-Charger, Watchdog Timer 256B HH:MM:SS:hh YY-MM-DD-dd I2C, 2-Wire Serial 1.7V ~ 3.6V 1.5V ~ 3.6V 0.17µA ~ 0.22µA @ 1.8V ~ 3V -40°C ~ 85°C Surface Mount - - 16-QFN (3x3)
    M41T81SMY6E

    M41T81SMY6E

    IC RTC CLK/CALENDAR I2C 18SOX

    STMicroelectronics

    3,498
    RFQ
    M41T81SMY6E

    Datasheet

    - 18-SOX, 18-SOIC with Crystal (7.5mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Square Wave Output, Watchdog Timer - HH:MM:SS:hh (24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 2.7V ~ 5.5V 2V ~ 3.5V 100µA @ 2.7V ~ 5.5V -40°C ~ 85°C Surface Mount - - 18-SOX
    RX-8035LCAA0 PURE SN

    RX-8035LCAA0 PURE SN

    IC RTC EVENT REC I2C 12VSOJ

    EPSON

    2,723
    RFQ
    RX-8035LCAA0 PURE SN

    Datasheet

    RX-8035LC 12-TFSOJ (0.094", 2.40mm Width) Tape & Reel (TR) Active - Clock/Calendar Alarm - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C 2.4V ~ 5.5V 1V ~ 5.5V 2.5µA @ 3V -40°C ~ 85°C Surface Mount - - 12-VSOJ
    RV-2123-C2-32.768KHZ-20PPM-TA-QA

    RV-2123-C2-32.768KHZ-20PPM-TA-QA

    TIMING REAL TIME CLOCK

    Micro Crystal AG

    4,121
    RFQ
    RV-2123-C2-32.768KHZ-20PPM-TA-QA

    Datasheet

    C2 10-TDFN Exposed Pad Bulk Active - Clock/Calendar Alarm, Leap Year - HH:MM:SS YY-MM-DD-dd SPI, 4-Wire Serial 5.5V - 180nA @ 3V -40°C ~ 85°C (TA) Surface Mount Automotive AEC-Q100 10-SON (5x3.2)
    RTC-4574SA:B3 ROHS

    RTC-4574SA:B3 ROHS

    IC RTC CLK/CALENDAR SER 14SOP

    EPSON

    4,436
    RFQ
    RTC-4574SA:B3 ROHS

    Datasheet

    RTC-4574SA 14-SOIC (0.197", 5.00mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Alarm, Leap Year - HH:MM:SS (24 hr) YY-MM-DD-dd 3-Wire Serial 1.6V ~ 5.5V - 1µA ~ 2µA @ 3V ~ 5V -40°C ~ 85°C Surface Mount - - 14-SOP
    DS1306EN

    DS1306EN

    IC RTC CLK/CALENDAR SPI 20TSSOP

    Analog Devices Inc./Maxim Integrated

    4,814
    RFQ
    DS1306EN

    Datasheet

    - 20-TSSOP (0.173", 4.40mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger 96B HH:MM:SS (12/24 hr) YY-MM-DD-dd SPI 2V ~ 5.5V 2V ~ 5.5V 25.3µA ~ 81µA @ 2V ~ 5V -40°C ~ 85°C Surface Mount - - 20-TSSOP
    DS1308U-3+T

    DS1308U-3+T

    IC RTC CLOCK/CALENDAR I2C 8UMAX

    Analog Devices Inc./Maxim Integrated

    2,763
    RFQ
    DS1308U-3+T

    Datasheet

    - 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tape & Reel (TR) Active Not Verified Clock/Calendar Leap Year, NVSRAM, Square Wave Output 56B HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 2.7V ~ 5.5V 1.3V ~ 5.5V - -40°C ~ 85°C Surface Mount - - 8-uMAX/uSOP
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