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MAXIM INTEGRATED / ANALOG DEVICES DS1339AU Real-Time Clock

The DS1339AU+ is a low-power, I2C-compatible serial real-time clock in an 8-pin micro SOP package, providing accurate timekeeping including leap-year correction up to 2200. It features seconds, minutes, hours, day, date, month, and year data, supporting both 12-hour and 24-hour formats with AM/PM indicators. The device includes two programmable alarms, a configurable square wave output, and a built-in power detection circuit that switches seamlessly to backup power during failures. Operating over 1.71V to 5.5V, with backup from 1.3V to 3.7V, it suits telecommunications, utility meters, and thermostats, with temperature range -40°C to 85°C, low active and standby currents, and support for crystals with up to 60 kΩ ESR. UL recognized and capable of functioning at voltages down to 1.15V, it offers features for power failure detection and automatic charge management.

Authorized Distributors
Source:Newark
Part No:DS1339AU+
Stock:287
Inv Date:06-05-2026
Price: Unit price: $5.98
Buy/RFQ:
Source:DigiKey
Part No:DS1339AU+
Stock:2212
Inv Date:06-05-2026
Price: Unit price: $6.1
Buy/RFQ:
Part No:DS1339AU+
Stock:347
Inv Date:06-06-2026
Price: Unit price: $5.86
Buy/RFQ:

MAXIM INTEGRATED / ANALOG DEVICES DS1339AU Real-Time Clock Specifications:

  • Supply Voltage: 1.71V to 5.5V
  • Backup Supply Voltage: 1.3V to 3.7V
  • Operating Temperature: -40°C to 85°C
  • Crystal Load Capacitance: 6pF
  • Crystal ESR: Up to 60kΩ
  • Maximum ESR: 60kΩ
  • Timekeeping Range: up to the year 2200
  • Active Current: 450 nA typical
  • Standby Current: 200 nA typical
  • Alarm Function: Two programmable alarms
  • Square Wave Output: Configurable frequency
  • Power Detection: Built-in power-fail detection and automatic switching
  • Supported Crystal Frequency: 32.768 kHz
  • Clock Format: 12-hour and 24-hour modes with AM/PM
  • Temperature Range: -40°C to 85°C
  • Package: 8-pin micro SOP
  • UL Recognized

Buy the Maxim DS1339AU+ – Reliable Real-Time Clock for Industrial Applications

Purchase the Maxim DS1339AU+ online today and ensure your system's time accuracy with reliable alarms, square wave output, and automatic backup switching. Engineered for industrial, telecommunications, and utility applications, this low-current RTC offers seamless operation even during power failures. Its wide voltage range and support for crystals with up to 60kΩ ESR make it versatile for various environments. Experience easy integration with I2C interface, UL recognition, and long-term stability. Secure your order now and optimize your device’s performance with this dependable RTC.

Buy Maxim DS1339AU+ now and experience unmatched reliability, precise timekeeping, and seamless backup power support for critical industrial, telecom, and medical systems.

Frequently Asked Questions

Where can I buy MAXIM INTEGRATED / ANALOG DEVICES DS1339AU?

You can click on the BUY or RFQ button to purchase DS1339AU from an authorized MAXIM INTEGRATED / ANALOG DEVICES distributor.

How do I troubleshoot issues or seek technical support for part DS1339AU?

You can download the DS1339AU datasheet or visit the MAXIM INTEGRATED / ANALOG DEVICES website for support.

Who is the manufacturer of DS1339AU?

MAXIM INTEGRATED / ANALOG DEVICES

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