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DS1307Z The Analog Devices / Maxim Integrated DS1307Z is a serial real-time clock (RTC) IC featuring a clock/calendar function and 56 bytes of NV SRAM. It communicates via an I2C interface and is housed in an 8-SOIC package.
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DS1307Z

Available from 6 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The Analog Devices / Maxim Integrated DS1307Z is a serial real-time clock (RTC) IC featuring a clock/calendar function and 56 bytes of NV SRAM. It communicates via an I2C interface and is housed in an 8-SOIC package.
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DS1307Z Available from 6 distributors

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DS1307Z Specifications Quick View

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DS1307Z Description

Short technical summary and product information.

The DS1307Z from Analog Devices / Maxim Integrated 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 device operates on a voltage range of 2V to 3.5V and features an I2C serial interface for easy integration with microcontrollers.

 

This clock/calendar IC supports both 12-hour and 24-hour formats with an AM/PM indicator. It includes a built-in power-sense circuit that detects power failures and automatically switches to a backup supply, ensuring continuous timekeeping operation. The DS1307Z consumes less than 500nA in battery-backup mode with the oscillator running.

 

Designed for surface mounting, the DS1307Z comes in an 8-SOIC package measuring 0.154 inches (3.90mm) in width. It operates within a temperature range of 0°C to 70°C. Key features include NVSRAM, leap year compensation, and a programmable square-wave output signal, making it suitable for various timekeeping applications.

DS1307Z Quick Information

Product Type: Real-Time Clock (RTC) IC
Canonical Name: DS1307Z Real-Time Clock (RTC) IC
Subcategory: Clock/Calendar

DS1307Z Compliance

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

DS1307Z Features

  • Manages all timekeeping functions accurately.
  • Includes 56 bytes of battery-backed NV SRAM.
  • Features a low-power I2C serial interface.
  • Automatic power-fail detect and switch circuitry.
  • Operates in 12-hour or 24-hour format.

DS1307Z Applications

  • Ideal for battery-backed timekeeping.
  • Suitable for microcontroller-based systems.
  • Used in devices requiring accurate date/time.
  • Applications needing non-volatile data storage.

DS1307Z FAQs

7 frequently asked questions generated from this part’s specifications.
What are the key features of the DS1307Z real-time clock IC?

The DS1307Z features complete timekeeping management including seconds, minutes, hours, date, month, and year with leap-year compensation up to 2100. It also includes 56 bytes of battery-backed NV SRAM, a programmable square-wave output, and automatic power-fail detection.

What interface does the DS1307Z use?

The DS1307Z uses an I2C serial interface, also referred to as a 2-Wire Serial interface.

What is the operating voltage range for the DS1307Z?

The DS1307Z operates within a voltage range of 2V to 3.5V.

What is the operating temperature range of the DS1307Z?

The DS1307Z has an operating temperature range of 0°C to 70°C.

What package type is the DS1307Z supplied in?

The DS1307Z is supplied in an 8-SOIC package, which is a surface mount type.

How much non-volatile RAM does the DS1307Z provide?

The DS1307Z provides 56 bytes of battery-backed, general-purpose NV SRAM.

What is the power consumption of the DS1307Z in battery-backup mode?

In battery-backup mode with the oscillator running, the DS1307Z consumes less than 500nA.

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