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DS1337U The DS1337U is an I2C serial real-time clock from Analog Devices / Maxim Integrated. It provides clock/calendar functions with alarms and a square-wave output.
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DS1337U

Available from 2 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The DS1337U is an I2C serial real-time clock from Analog Devices / Maxim Integrated. It provides clock/calendar functions with alarms and a square-wave output.
✓ Total Stock: 93,400 pcs

DS1337U Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
Non-Authorised Inventory information
90,400 pcs
On Request
90400 pcs On Request 1 On Request On Request On Request On Request On Request
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
3,000 pcs
On Request
3000 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

DS1337U Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
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Features
Interface
Mounting Type
Operating Temperature
Supplier Device Package
Time Format
Type
Voltage
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DS1337U Description

Short technical summary and product information.

The DS1337U is a low-power, serial real-time clock (RTC) from Analog Devices / Maxim Integrated, designed to manage all timekeeping functions. It counts seconds, minutes, hours, day, date, month, and year, with leap-year compensation valid up to 2100. The device features two programmable time-of-day alarms and a programmable square-wave output, defaulting to 32kHz on power-up.

 

This clock operates over a wide voltage range of 1.8V to 5.5V, with timekeeping maintained as low as 1.3V. It interfaces with most microcontrollers via an I2C serial interface. The operating temperature range is -40°C to +85°C, making it suitable for industrial applications.

 

The DS1337U is available in an 8-pin uMAX/uSOP package, designed for surface mounting. This compact package saves space and simplifies design in various electronic systems.

DS1337U Quick Information

Product Type: Real Time Clock
Canonical Name: DS1337U I2C Serial Real-Time Clock
Subcategory: Clock/Calendar

DS1337U Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Lead free / RoHS Compliant

DS1337U Features

  • Manages all timekeeping functions including leap year.
  • Includes two programmable time-of-day alarms.
  • Provides a programmable square-wave output.
  • Interfaces via I2C serial communication.
  • Operates from 1.8V to 5.5V supply voltage.

DS1337U Applications

  • Suitable for handheld devices.
  • Used in consumer electronics.
  • Applicable to office equipment.
  • Designed for telecommunication systems.
  • Can be used in medical devices.

DS1337U FAQs

5 frequently asked questions generated from this part’s specifications.
What are the key features of the DS1337U Real Time Clock?

The DS1337U features complete timekeeping functions, two time-of-day alarms, and a programmable square-wave output. It also includes leap-year compensation and an oscillator stop flag.

What is the operating voltage range for the DS1337U?

The DS1337U operates within a voltage range of 1.8V to 5.5V.

What is the operating temperature range of the DS1337U?

The DS1337U has an operating temperature range of -40°C to +85°C.

What interface does the DS1337U use?

The DS1337U uses an I2C, 2-Wire Serial interface.

What package is the DS1337U available in?

The DS1337U is available in an 8-uMAX/uSOP package and an 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) package, both for surface mounting.

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