DS1302ZN+T&R The Analog Devices DS1302ZN+T&R is a Real-Time Clock/Calendar IC with 31 bytes of battery-backed RAM. It features a simple 3-wire serial interface and operates from 2V to 5.5V.
Mfr Part #:

DS1302ZN+T&R

Available from 4 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The Analog Devices DS1302ZN+T&R is a Real-Time Clock/Calendar IC with 31 bytes of battery-backed RAM. It features a simple 3-wire serial interface and operates from 2V to 5.5V.
Total Stock: 14,105 pcs

DS1302ZN+T&R Available from 4 distributors

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DS1302ZN+T&R Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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DS1302ZN+T&R Description

Short technical summary and product information.

The Analog Devices DS1302ZN+T&R is a trickle-charge timekeeping chip that manages all timekeeping functions, including seconds, minutes, hours, date, month, day of the week, and year with leap-year compensation up to 2100. It includes 31 bytes of battery-backed general-purpose RAM.

 

This chip interfaces with microcontrollers via a simple 3-wire serial interface (CE, I/O, SCLK) and is TTL-compatible. Data transfer can be done in single-byte or burst modes. It operates on very low power, consuming less than 300nA at 2.0V, extending battery backup run time.

 

The DS1302ZN+T&R is available in an 8-pin SOIC package, minimizing required space. It supports an optional industrial temperature range of -40°C to +85°C, making it suitable for a wide range of applications. The device also features dual power pins for primary and backup power supplies and a programmable trickle charger.

 

Key specifications include an operating voltage range of 2V to 5.5V, an operating current of 0.3µA to 1µA at 2V to 5V, and an operating temperature range of -40°C to +85°C. The package is an 8-SOIC with a width of 3.90mm. It supports both 12-hour and 24-hour time formats and a YY-MM-DD-dd date format.

DS1302ZN+T&R Quick Information

Product Type: Real Time Clock
Canonical Name: DS1302ZN+T&R Real-Time Clock/Calendar Chip
Subcategory: Clock/Calendar

DS1302ZN+T&R Compliance

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

DS1302ZN+T&R Features

  • Manages all timekeeping functions with leap-year compensation.
  • Includes 31 bytes of battery-backed RAM.
  • Simple 3-wire serial interface for microcontrollers.
  • Low power operation extends battery backup.
  • Available in 8-pin SOIC package.

DS1302ZN+T&R Applications

  • Ideal for battery-backed timekeeping.
  • Suitable for industrial temperature applications.
  • Used in embedded systems requiring accurate time.
  • Supports microcontrollers with serial interfaces.

DS1302ZN+T&R FAQs

6 frequently asked questions generated from this part’s specifications.
What are the main timekeeping functions managed by the DS1302ZN+T&R?

It 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 battery-backed RAM does the DS1302ZN+T&R provide?

It provides 31 x 8 bytes of battery-backed general-purpose RAM.

What type of interface does the DS1302ZN+T&R use?

It uses a simple 3-wire serial interface.

What is the operating voltage range for the DS1302ZN+T&R?

The operating voltage range is 2V to 5.5V.

What is the operating temperature range of the DS1302ZN+T&R?

The operating temperature range is -40°C to +85°C.

What package is the DS1302ZN+T&R supplied in?

It is supplied in an 8-SOIC package.

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