DS1339U-33+ Dallas Semiconductor, DS1339U-33+ Datasheet - Page 20

• Manufacturer Part Number: DS1339U-33+
• Description: SERIAL RTC 3.3V USOP
• Manufacturer: Dallas Semiconductor

Specifications of DS1339U-33+

• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

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
REVISION
100108
DATE
The Maxim logo is a registered trademark of Maxim Integrated Products, Inc. The Dallas logo is a registered trademark of Dallas Semiconductor.
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 Ω to 50k Ω .
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
2
C Serial Real-Time Clock
CHANGED
PAGES
2, 8
10
18
1
3
6
8
9
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