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DS1307ZN+ The DS1307ZN+ from Analog Devices / Maxim Integrated is a serial real-time clock (RTC) with calendar functions and 56 bytes of NV SRAM. It communicates via an I2C interface and operates over an industrial temperature range.
Mfr Part #:

DS1307ZN+

Available from 4 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The DS1307ZN+ from Analog Devices / Maxim Integrated is a serial real-time clock (RTC) with calendar functions and 56 bytes of NV SRAM. It communicates via an I2C interface and operates over an industrial temperature range.
✓ Total Stock: 303 pcs

DS1307ZN+ Available from 4 distributors

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Braun Electronic Components ✓
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124 pcs
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Emiteli ✓
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124 pcs
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Hybrid Electronics ✓
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50 pcs
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Risen Electronics ✓
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5 pcs
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5 pcs On Request 1 On Request On Request On Request On Request 2026-02-23 21:33:16
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DS1307ZN+ Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Date Format
Features
Interface
Memory Size
Mounting Type
Operating Temperature
Supplier Device Package
Tape & Reel
Time Format
Type
Voltage
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DS1307ZN+ Description

Short technical summary and product information.

The DS1307ZN+ is a low-power, full binary-coded decimal (BCD) clock/calendar integrated circuit from Analog Devices / Maxim Integrated. It provides seconds, minutes, hours, day, date, month, and year information, with automatic adjustments for month length and leap years. The clock supports both 24-hour and 12-hour formats with an AM/PM indicator.

 

This device features a built-in power-sense circuit that detects power failures and automatically switches to a backup supply, ensuring continuous timekeeping operation. It includes 56 bytes of battery-backed, general-purpose RAM with unlimited writes and a programmable square-wave output signal. The I2C serial interface simplifies integration with most microcontrollers.

 

Designed for a wide range of applications, the DS1307ZN+ operates from 2V to 3.5V and consumes less than 500nA in battery-backup mode with the oscillator running. It is available in an 8-pin SOIC package, minimizing required space. The industrial temperature range of -40°C to +85°C supports operation in demanding environments.

 

Key features include leap year compensation valid up to 2100, automatic power-fail detect and switch circuitry, and a UL recognized component status.

DS1307ZN+ Quick Information

Product Type: Real-Time Clock
Canonical Name: DS1307ZN+ Serial Real-Time Clock (RTC)
Subcategory: Clock/Calendar

DS1307ZN+ Compliance

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

DS1307ZN+ Features

  • Manages all timekeeping functions including leap year.
  • Includes 56 bytes of battery-backed NV SRAM.
  • Features I2C serial interface for microcontrollers.
  • Low power consumption in battery-backup mode.
  • Automatic power-fail detect and switch circuitry.

DS1307ZN+ Applications

  • Ideal for battery-backed timekeeping.
  • Suitable for industrial temperature applications.
  • Used in systems requiring calendar functions.
  • Integrates easily with microcontroller systems.

DS1307ZN+ FAQs

5 frequently asked questions generated from this part’s specifications.
What are the key timekeeping features of the DS1307ZN+?

The DS1307ZN+ counts seconds, minutes, hours, date of the month, month, day of the week, and year, with leap-year compensation valid up to 2100.

How much non-volatile RAM is available on the DS1307ZN+?

The DS1307ZN+ has 56 bytes of battery-backed, general-purpose RAM with unlimited writes.

What is the operating temperature range for the DS1307ZN+?

The DS1307ZN+ operates from -40°C to +85°C.

What voltage range does the DS1307ZN+ support?

The DS1307ZN+ supports a voltage range of 2V to 3.5V.

What interface does the DS1307ZN+ use?

The DS1307ZN+ uses an I2C, 2-Wire Serial interface.

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