DS1339U-2+ by Analog Devices

I²C Serial Real-Time Clock

Status: Active
Series: DS1339
RoHS: Unknown
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The DS1339 serial real-time clock (RTC) is a low-power clock/date device with two programmable time-of-day alarms and a programmable square-wave output. Address and data are transferred serially through an I²C bus. The clock/date provides seconds, minutes, hours, day, date, month, and year information. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator. The DS1339 has a built-in power-sense circuit that detects power failures and automatically switches to the backup supply, maintaining time, date, and alarm operation.

Prices starting from US$3.13


Distributor Starting From Stock
Logo for element14 element14 US$3.13
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Logo for Newark Electronics Newark Electronics -
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Features

Completely Manages All Timekeeping Functions Real-Time Clock Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the Week, and Year with Leap-Year Compensation Valid Up to 2100 Two Time-of-Day Alarms Programmable Square-Wave Output Oscillator Stop Flag
Real-Time Clock Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the Week, and Year with Leap-Year Compensation Valid Up to 2100
Two Time-of-Day Alarms
Programmable Square-Wave Output
Oscillator Stop Flag
Interfaces to Most Microcontrollers I2C Serial Interface
I2C Serial Interface
Low-Power Operation Extends Battery Backup Run Time Automatic Power-Fail Detect and Switch Circuitry Trickle-Charge Capability
Automatic Power-Fail Detect and Switch Circuitry
Trickle-Charge Capability
Underwriters Laboratories® (UL) Recognized
Surface-Mount Package with an Integrated Crystal (DS1339C Saves Additional Space and Simplifies Design

Specifications

Interface I2C
VSUPPLY (V) 1.8 to 5.5
Date/ Time Format (hh = sec/100) YY-MM-DD/ HH:MM:SS
Time Keeping Current (nA) (typ) 400
CL (pF) 6
Memory Type None
Time of Day Alarms 2
Package/Pins SOIC (W)/16UMAX/8
BudgetaryPrice (See Notes) 1.94


DS1339U-2+ Semiconductors - ICs by Analog Devices

RTC D-D-M-Y HH:MM:SS USOP-8

Status: Unknown
Series: -
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

Specifications

Date Format Day
Clock Format HH
Clock IC Type Alarm RTC
Supply Voltage Min 1.8V
Supply Voltage Max 5.5V
Clock IC Case Style µSOP
No. of Pins 8Pins
IC Interface Type I2C
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

RTC, D-D-M-Y, HH: MM: SS, USOP-8 | Farnell
Rtc, D-D-M-Y, Hh:Mm:Ss, Usop-8 | Newark Electronics

Frequently Asked Questions

Where can I find additional details, specifications and documents for a DS1339U-2+ ?

Additional datasheets, footprints and schematics for DS1339U-2+ are listed on our Part Details page. You can also find images and similar parts to DS1339U-2+ on this page.

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Is the DS1339U-2+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for DS1339U-2+ have stock available?

Authorised distributors including element14, Farnell and Newark Electronics have stock available or on a lead time for DS1339U-2+ .

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