Part Number
    Please enter a valid full or partial manufacturer part number with a minimum of 3 letters or numbers

    DS1307 datasheet by Dallas Semiconductor

    • Interfacing the DS1307 with a 8051-Compatible Microcontroller
    • Original
    • No
    • Transferred
    • Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

    DS1307 datasheet preview

    DS1307 Price & Stock

    Distributor Stock Lead Time Min Order Qty Price Buy
    Bristol Electronics () 294
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Get Quote
    141
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Get Quote
    97
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Get Quote
    42
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Get Quote
    19
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Get Quote
    Quest Components () 100
    • 1 $5.60
    • 10 $2.80
    • 100 $2.43
    • 1000 $2.43
    • 10000 $2.43
    Buy Now
    52
    • 1 $5.38
    • 10 $3.94
    • 100 $3.58
    • 1000 $3.58
    • 10000 $3.58
    Buy Now
    40
    • 1 $5.33
    • 10 $3.91
    • 100 $3.55
    • 1000 $3.55
    • 10000 $3.55
    Buy Now
    33
    • 1 $5.16
    • 10 $3.78
    • 100 $3.44
    • 1000 $3.44
    • 10000 $3.44
    Buy Now
    31
    • 1 $4.21
    • 10 $3.09
    • 100 $2.81
    • 1000 $2.81
    • 10000 $2.81
    Buy Now
    20
    • 1 $3.24
    • 10 $2.38
    • 100 $2.38
    • 1000 $2.38
    • 10000 $2.38
    Buy Now
    4
    • 1 $5.25
    • 10 $3.50
    • 100 $3.50
    • 1000 $3.50
    • 10000 $3.50
    Buy Now
    ComSIT USA () 2,180
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Get Quote
    1,467
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Get Quote
    Velocity Electronics 80
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Get Quote
    Component Electronics, Inc () 1,840
    • 1 $6.15
    • 10 $6.15
    • 100 $4.62
    • 1000 $4.00
    • 10000 $4.00
    Buy Now
    32
    • 1 $6.15
    • 10 $6.15
    • 100 $4.62
    • 1000 $4.00
    • 10000 $4.00
    Buy Now
    19
    • 1 $6.15
    • 10 $6.15
    • 100 $4.62
    • 1000 $4.00
    • 10000 $4.00
    Buy Now
    5
    • 1 $6.15
    • 10 $6.15
    • 100 $4.62
    • 1000 $4.00
    • 10000 $4.00
    Buy Now
    Vyrian () 1,367
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Get Quote
    171
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Get Quote
    140
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    Get Quote

    DS1307 Frequently Asked Questions (FAQs)

    • The minimum voltage required to maintain the clock and RAM data is 2.0V. However, it's recommended to keep the voltage above 2.5V for reliable operation.
    • The internal oscillator has an accuracy of ±20 ppm (parts per million) at 25°C, which translates to about 1 minute per year.
    • Yes, the DS1307 has an internal oscillator that can be used as a clock source. However, the accuracy may not be as good as using an external crystal, and the frequency may drift over time.
    • You need to write the desired date and time to the clock registers (seconds, minutes, hours, day, date, month, and year) using the I2C interface. The clock will start counting from the set value.
    • When the battery is removed, the clock and RAM data are maintained by the internal capacitor. When the battery is reinserted, the clock will continue from where it left off, and the RAM data will be retained.
    Supplyframe Tracking Pixel