DS1339AU+T The DS1339AU+T is a low-current, I2C serial real-time clock from Analog Devices / Maxim Integrated. It provides clock/date functions with alarms and a square-wave output.
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DS1339AU+T

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Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The DS1339AU+T is a low-current, I2C serial real-time clock from Analog Devices / Maxim Integrated. It provides clock/date functions with alarms and a square-wave output.
✓ Total Stock: 3 pcs

DS1339AU+T Available from 1 distributor

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DS1339AU+T Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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DS1339AU+T Description

Short technical summary and product information.

The DS1339AU+T is a serial real-time clock (RTC) from Analog Devices / Maxim Integrated, designed for low-power applications. It functions as a clock/date device, offering seconds, minutes, hours, day, date, month, and year information with leap-year compensation up to 2200. The device supports both 24-hour and 12-hour formats with an AM/PM indicator.

 

Key features include two programmable time-of-day alarms and a programmable square-wave output. It interfaces with microcontrollers via an I2C serial interface. The DS1339A includes a built-in power-sense circuit that automatically switches to a backup supply during power failures, ensuring continuous time, date, and alarm operation. It supports crystals with up to 60k Ohm ESR and operates with a VCC range from 1.8V to 5V, with the oscillator running down to 1.15V.

 

This IC is suitable for applications such as handheld devices (GPS, POS Terminals), consumer electronics (Set-Top Boxes, Digital Recording), office equipment (Fax/Printers), medical devices (Glucometers), and telecommunications equipment (Routers, Servers). It is available in an 8-uMAX/uSOP package and is surface-mount compatible.

 

The operating temperature range is -40°C to 85°C, and it consumes 200µA at 1.71V to 5.5V. The device supports a voltage range of 1.3V to 3.7V.

DS1339AU+T Quick Information

Product Type: Real-Time Clock IC
Canonical Name: DS1339A Low-Current, I2C, Serial Real-Time Clock
Subcategory: Real-Time Clock (RTC)

DS1339AU+T Compliance

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

DS1339AU+T Features

  • Low-current I2C serial real-time clock.
  • Provides clock, date, and alarms.
  • Automatic power-fail detect and switch.
  • Supports trickle-charge capability.
  • Operates from 1.3V to 3.7V.

DS1339AU+T Applications

  • Suitable for handheld devices.
  • Used in consumer electronics.
  • Applicable to office equipment.
  • Designed for medical devices.
  • Used in telecommunications.

DS1339AU+T FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the DS1339AU+T?

The operating voltage range is 1.3V to 3.7V.

What is the operating temperature range for the DS1339AU+T?

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

What type of interface does the DS1339AU+T use?

The DS1339AU+T uses an I²C, 2-Wire Serial interface.

What are the key features of the DS1339AU+T?

Key features include Alarm, Leap Year compensation, Square Wave Output, and Trickle-Charger capability.

What package is the DS1339AU+T available in?

The DS1339AU+T is available in an 8-uMAX/uSOP package, also described as 8-TSSOP, 8-MSOP.

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