DS1339U-3+T&R Overview
real time clocks is located in package 8-TSSOP, 8-MSOP (0.118, 3.00mm Width).As of Tape & Reel (TR), time clock is packaged in this way.There is 2.7V~5.5V voltage supply for this electrical RTC.It can be said that this electrical real time clock belongs to the Clock/Calendar type.The real time clock (RTC) that is mounted in the way of Surface Mount is connected to this circuit board.In order to operate properly, the temperature should be -40°C~85°C.During the course of operation, Alarm, Leap Year, Square Wave Output, Trickle-Charger can be ensured.DS1339 are the family name of RTCs .As far as the supply voltage for this electrical digital time clock is concerned, it is 1.3V~3.7V.Mounting type Surface Mount matches the RTC module.A total of 8 pins are attached to this real time clock.Maintaining the supply voltage at 3V is the key to high efficiency.RTC time is advisable to operate at a temperature above -40°C.85°C is the optimal operating temperature.With the minimal voltage of 2.7V, real time clocks are capable of operating.This real time clock operates with a max supply voltage of 3.3V.
DS1339U-3+T&R Features
8-TSSOP, 8-MSOP (0.118, 3.00mm Width) package
Be maintained at 3V for high efficiency.

DS1339U-3+T&R Applications
There are a lot of Maxim Integrated
DS1339U-3+T&R Real Time Clocks applications.

Copy machines
Mobile equipment
Battery powered devices
Printers and copiers
Electronic metering
Digital cameras
White goods
Elapsed time counter
Network powered devices
Battery backed up systems

Factory Lead Time	6 Weeks
Mount	Surface Mount
Mounting Type	Surface Mount
Package / Case	8-TSSOP, 8-MSOP (0.118, 3.00mm Width)
Number of Pins	8
Supplier Device Package	8-uMAX
Operating Temperature	-40°C~85°C
Packaging	Tape & Reel (TR)
Published	2002
Feature	Alarm, Leap Year, Square Wave Output, Trickle-Charger
Part Status	Active
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Type	Clock/Calendar
Max Operating Temperature	85°C
Min Operating Temperature	-40°C
Voltage - Supply	2.7V~5.5V
Base Part Number	DS1339
Operating Supply Voltage	3V
Interface	I2C, 2-Wire Serial
Max Supply Voltage	3.3V
Min Supply Voltage	2.7V
Logic Function	Clock
Time Format	HH:MM:SS (12/24 hr)
Date Format	YY-MM-DD-dd
Current - Timekeeping (Max)	150μA @ 3.3V
Voltage - Supply, Battery	1.3V~3.7V
Radiation Hardening	No
RoHS Status	ROHS3 Compliant
Lead Free	Lead Free