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DS1307 The Analog Devices DS1307 is a serial real-time clock (RTC) with 56 bytes of NV SRAM. It communicates via an I2C interface and supports a voltage range of 2V to 3.5V.
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DS1307

Available from 7 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The Analog Devices DS1307 is a serial real-time clock (RTC) with 56 bytes of NV SRAM. It communicates via an I2C interface and supports a voltage range of 2V to 3.5V.
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DS1307 Available from 7 distributors

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DS1307 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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DS1307 Description

Short technical summary and product information.

The DS1307 from Analog Devices is a low-power, full binary-coded decimal (BCD) clock/calendar IC with 56 bytes of non-volatile SRAM. It manages all timekeeping functions, including seconds, minutes, hours, day, date, month, and year, with leap-year compensation valid up to 2100. The clock operates in either 24-hour or 12-hour format with an AM/PM indicator.

 

Data transfer occurs serially through a bidirectional I2C bus. Key features include automatic power-fail detection and switchover to a backup supply, ensuring continuous timekeeping. The device consumes less than 500nA in battery-backup mode with the oscillator running. It offers a programmable square-wave output signal.

 

This component is available in an 8-pin PDIP package suitable for through-hole mounting. The operating temperature range is 0°C to 70°C, and it requires a voltage between 2V and 3.5V. The DS1307 is designed for applications requiring accurate timekeeping and battery-backed data storage.

DS1307 Quick Information

Product Type: Real-Time Clock
Canonical Name: DS1307 Clock/Calendar IC
Subcategory: Clock/Calendar

DS1307 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

DS1307 Features

  • Manages all timekeeping functions accurately.
  • Includes 56 bytes of battery-backed NV SRAM.
  • Features automatic power-fail detection.
  • Low power consumption in backup mode.
  • I2C serial interface for easy integration.

DS1307 Applications

  • Ideal for battery-backed timekeeping.
  • Suitable for data logging applications.
  • Used in embedded systems.
  • Provides accurate date and time.
  • Supports 12/24 hour format.

DS1307 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the DS1307?

The operating voltage range for the DS1307 is 2V to 3.5V.

What package type is the DS1307 available in?

The DS1307 is available in an 8-PDIP package.

What is the operating temperature range for the DS1307?

The operating temperature range for the DS1307 is 0°C to 70°C.

Does the DS1307 support leap year compensation?

Yes, the DS1307 supports leap year compensation valid up to 2100.

How much NV SRAM is available on the DS1307?

The DS1307 has 56 bytes of NV SRAM.

What interface does the DS1307 use?

The DS1307 uses an I2C, 2-Wire Serial interface.

DS1307 Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.
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DS1307+
DS1307+
Analog Devices / Maxim Integrated
IC RTC CLOCK/CALENDAR I2C 8DIP
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