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DS1307 Real-Time Clock 64X8 Serial I²C DIP-8

View DS1307N+: DS1307 Real-Time Clock (64X8 Serial I²c)

DS1307N+: DS1307 Real-Time Clock (64X8 Serial I²c)

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Dallas Semiconductor
Jameco Part no. 1194695
Manufacturer no. DS1307N+
  RoHS compliant
Catalog 152 , page 7
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1+ $2.95
10+ $2.25
100+ $2.05
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Real-Time Clock (64x8, Serial, I²C)

The DS1307 serial real-time clock (RTC) is a low-power, full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV SRAM. Address and data are transferred serially through an I²C, bidirectional bus. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator. The DS1307 has a built-in power-sense circuit that detects power failures and automatically switches to the battery supply.


  • Real-Time Clock (RTC) Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the week, and Year with Leap-Year Compensation Valid Up to 2100
  • 56-Byte, Battery-Backed, Nonvolatile (NV) RAM for Data Storage
  • I²C Serial Interface
  • Programmable Square-Wave Output Signal
  • Automatic Power-Fail Detect and Switch Circuitry
  • Consumes Less than 500nA in Battery-Backup Mode with Oscillator Running
  • Industrial Temperature Range: -40°C to +85°C
  • Package: 8-Pin Plastic DIP
  • Underwriters Laboratory (UL) Recognized

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  • Specification Value
    Minimum Operating Temperature-40°C
    Maximum Operating Temperature85°C
    Screening LevelIndustrial
    MountingThrough Hole
    Supplier_PackagePDIP N
    Product Width7.87mm(Max)
    Product Height4.45mm(Max)
    Product Length9.91mm(Max)
    Specification Value
    Product TypeReal Time Clock
    Bus TypeSerial (I2C)
    Date FormatDW:DM:M:Y
    Time FormatHH:MM:SS
    User RAM56Byte
    Minimum Operating Supply Voltage4.5V
    Typical Operating Supply Voltage5V
    Maximum Operating Supply Voltage5.5V

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