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DS1302Z The Analog Devices DS1302Z is a Clock/Calendar IC that manages timekeeping functions and includes 31 bytes of battery-backed RAM. It features a simple 3-wire serial interface for easy microcontroller integration.
Mfr Part #:

DS1302Z

Available from 6 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The Analog Devices DS1302Z is a Clock/Calendar IC that manages timekeeping functions and includes 31 bytes of battery-backed RAM. It features a simple 3-wire serial interface for easy microcontroller integration.
✓ Total Stock: 334,742 pcs

DS1302Z Available from 6 distributors

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DS1302Z Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Date Format
Features
Interface
Lead Spacing
Memory Size
Mounting Type
Operating Temperature
Supplier Device Package
Tape & Reel
Time Format
Type
Voltage
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DS1302Z Description

Short technical summary and product information.

The DS1302Z from Analog Devices is a trickle-charge timekeeping chip designed for real-time clock and calendar functions. It counts seconds, minutes, hours, day, date, month, and year, with leap-year compensation valid up to 2100. The chip also provides 31 bytes of general-purpose static RAM for data storage.

 

This IC interfaces with microcontrollers via a simple 3-wire serial port, supporting both single-byte and burst mode data transfers. It operates over a wide voltage range of 2.0V to 5.5V and consumes very low power, drawing less than 300nA at 2.0V, which extends battery backup run time.

 

The DS1302Z is available in an 8-pin SOIC package, minimizing space requirements on printed circuit boards. It supports a standard operating temperature range of 0°C to 70°C, with an optional industrial temperature range available for more demanding applications.

 

Key features include leap-year compensation, non-volatile RAM (NVSRAM), and a trickle charger. The time format can be set to either 12-hour or 24-hour with an AM/PM indicator, and the date format is YY-MM-DD-dd.

DS1302Z Quick Information

Product Type: Real Time Clock IC
Canonical Name: DS1302Z Clock/Calendar IC
Subcategory: Real Time Clocks

DS1302Z Compliance

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

DS1302Z Features

  • Manages all timekeeping functions.
  • Includes 31 bytes of battery-backed RAM.
  • Simple 3-wire serial interface.
  • Low power operation extends battery life.
  • Available in 8-SOIC package.

DS1302Z Applications

  • Ideal for embedded timekeeping.
  • Suitable for battery-powered devices.
  • Used in microcontrollers systems.
  • Supports leap-year calculations.
  • Provides non-volatile data storage.

DS1302Z FAQs

4 frequently asked questions generated from this part’s specifications.
What are the operating voltage and current for the DS1302Z?

The DS1302Z operates from 2V to 5.5V and uses less than 300nA at 2.0V.

What package is the DS1302Z available in?

The DS1302Z is available in an 8-SOIC package.

What is the operating temperature range for the DS1302Z?

The operating temperature range for the DS1302Z is 0°C to 70°C.

What is the RoHS status of the DS1302Z?

The DS1302Z is RoHS3 Compliant.

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