DS1339U-3+ Maxim Integrated Products, DS1339U-3+ Datasheet - Page 20

• Manufacturer Part Number: DS1339U-3+
• Description: IC RTC I2C W/ALARM 8-USOP
• Manufacturer: Maxim Integrated Products
• Type: Clock/Calendar/Alarmr

Specifications of DS1339U-3+

• Time Format: HH:MM:SS (12/24 hr)
• Date Format: YY-MM-DD-dd
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2.7 V ~ 3.3 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Function: Clock/Calendar/Alarm/Trickle Charger
• Supply Voltage (max): 3.3 V
• Supply Voltage (min): 2.7 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Rtc Bus Interface: Serial (I2C)
• Supply Current: 450 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

REVISION HISTORY
Maxim/Dallas Semiconductor cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim/Dallas Semiconductor product.
No circuit patent licenses are implied. Maxim/Dallas Semiconductor reserves the right to change the circuitry and specifications without notice at any time.
M a x i m I n t e g r a t e d P r o d u c t s , 1 2 0 S a n G a b r i e l D r i v e , S u n n y v a l e , C A 9 4 0 8 6 4 0 8 - 7 3 7 - 7 6 0 0
The Maxim logo is a registered trademark of Maxim Integrated Products, Inc. The Dallas logo is a registered trademark of Dallas Semiconductor.
REVISION
100108
DATE
Removed leaded part numbers from the Ordering Information table.
Removed the pullup resistor voltage spec from the Recommended DC
Operating Conditions table and added it to the pin descriptions.
Removed Note 7 from the I
table.
Updated the block diagram (Figure 3) to show that SQW/INT is open drain.
Added the UL link to the V
Removed the duplicate Oscillator Circuit section.
Added the initial POR state for time and date registers in the Power Control
section.
Changed the series resistance (ESR) value in Table 2 from 45k  to 50k  .
Added the overbar to the “A” legend for NACK in Figure 8.
© 2008 Maxim Integrated Products
BACKUP
BKDR
specification in the DC Electrical Characteristics
DESCRIPTION
description in the Pin Description table.
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DS1339 I
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C Serial Real-Time Clock
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