DS1339BU+T The DS1339BU+T is a serial real-time clock (RTC) from Analog Devices / Maxim Integrated. It offers I2C interface, alarms, and leap year compensation.
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DS1339BU+T

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Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The DS1339BU+T is a serial real-time clock (RTC) from Analog Devices / Maxim Integrated. It offers I2C interface, alarms, and leap year compensation.
✓ Total Stock: 13,908 pcs

DS1339BU+T Available from 1 distributor

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DS1339BU+T Specifications Quick View

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

DS1339BU+T Description

Short technical summary and product information.

The DS1339BU+T is a low-power serial real-time clock (RTC) from Analog Devices / Maxim Integrated. This clock/date device features two programmable time-of-day alarms and a programmable square-wave output. Data is transferred serially via an I2C bus.

 

Key specifications include a supply voltage range of 1.3V to 3.7V and an operating temperature range of -40°C to 85°C. It consumes a typical current of 200µA at 1.71V to 5.5V. The device provides seconds, minutes, hours, day, date, month, and year information, with automatic adjustment for month lengths and leap year corrections valid up to 2200. It supports both 12-hour and 24-hour formats.

 

Additional features include automatic power-fail detection and switch circuitry to maintain timekeeping during power interruptions. It supports high-ESR crystals up to 100kΩ, allowing for optimization in cost and space. The DS1339BU+T is available in an 8-uMAX/uSOP package and is designed for surface mounting.

 

Applications for this RTC include handheld devices, consumer electronics, office equipment, medical devices, and telecommunications infrastructure.

DS1339BU+T Quick Information

Product Type: Real Time Clock
Canonical Name: DS1339BU+T Serial Real-Time Clock (RTC)
Subcategory: Clock/Calendar

DS1339BU+T Compliance

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

DS1339BU+T Features

  • Low-power serial real-time clock.
  • I2C interface for easy integration.
  • Dual time-of-day alarms included.
  • Leap year compensation up to 2200.
  • Automatic power-fail detection.

DS1339BU+T Applications

  • Used in handheld GPS devices.
  • Suitable for set-top boxes.
  • Applicable to office equipment.
  • Found in medical dispensers.
  • Supports telecommunication routers.

DS1339BU+T FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the DS1339BU+T?

The operating voltage range is 1.3V to 3.7V.

What is the operating temperature range for the DS1339BU+T?

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

What package type is the DS1339BU+T available in?

The DS1339BU+T is available in an 8-uMAX/uSOP package and an 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) package.

What is the RoHS status of the DS1339BU+T?

The RoHS status is RoHS3 Compliant.

What are the key features of the DS1339BU+T?

Key features include alarm, leap year compensation, square wave output, and trickle-charger functionality.

What interface does the DS1339BU+T use?

The DS1339BU+T uses an I2C, 2-Wire Serial interface.

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