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DS1338U-33+ The Analog Devices DS1338U-33+ is a serial real-time clock (RTC) with 56 bytes of NV SRAM, featuring an I2C interface. It operates over an industrial temperature range.
Mfr Part #:

DS1338U-33+

Available from 2 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The Analog Devices DS1338U-33+ is a serial real-time clock (RTC) with 56 bytes of NV SRAM, featuring an I2C interface. It operates over an industrial temperature range.
✓ Total Stock: 323 pcs

DS1338U-33+ Available from 2 distributors

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Risen Electronics ✓
Non-Authorised Inventory information
300 pcs
On Request
300 pcs On Request 1 On Request On Request On Request On Request 2026-02-23 21:33:16
Bristol Electronics ✓
Non-Authorised Inventory information
23 pcs
On Request
23 pcs On Request 1 On Request On Request On Request On Request On Request
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DS1338U-33+ Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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DS1338U-33+ Description

Short technical summary and product information.

The DS1338U-33+ from Analog Devices is a low-power serial real-time clock (RTC) that manages all timekeeping functions, including seconds, minutes, hours, date, month, day of the week, and year with leap-year compensation valid up to 2100. It includes 56 bytes of battery-backed, general-purpose RAM with unlimited writes and a programmable square-wave output signal.

 

This device interfaces with most microcontrollers via an I2C serial interface. It features automatic power-fail detect and switch circuitry, extending battery backup run time. The clock operates in either 24-hour or 12-hour format with an AM/PM indicator.

 

The DS1338U-33+ is available in a surface-mount 8-uMAX/uSOP package, suitable for applications requiring space savings and simplified design. It operates within an industrial temperature range of -40°C to +85°C, making it suitable for a wide variety of applications.

 

Typical applications include handheld devices, consumer electronics, office equipment, medical devices, and telecommunications equipment.

DS1338U-33+ Quick Information

Product Type: Real Time Clock
Canonical Name: DS1338U-33+ Serial Real-Time Clock (RTC)
Subcategory: RTC

DS1338U-33+ Compliance

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

DS1338U-33+ Features

  • Manages all timekeeping functions.
  • Includes 56 bytes of NV SRAM.
  • I2C serial interface for easy integration.
  • Automatic power-fail detect circuitry.
  • Operates in industrial temperature range.

DS1338U-33+ Applications

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

DS1338U-33+ FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage for the DS1338U-33+?

The operating voltage for the DS1338U-33+ is 1.3V to 3.7V.

What interface does the DS1338U-33+ use?

The DS1338U-33+ uses an I2C, 2-Wire Serial interface.

What is the operating temperature range of the DS1338U-33+?

The DS1338U-33+ operates from -40°C to 85°C.

How much NV SRAM is available on the DS1338U-33+?

The DS1338U-33+ has 56 bytes of NV SRAM.

What type of component is the DS1338U-33+?

The DS1338U-33+ is a Clock/Calendar type component.

Does the DS1338U-33+ support both 12-hour and 24-hour time formats?

Yes, the DS1338U-33+ supports both 12-hour and 24-hour time formats.

What are the key features of the DS1338U-33+?

Key features include leap year compensation, 56 bytes of NVSRAM, and a programmable square wave output signal.

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