DS1338U-33+T&R Maxim Integrated Products, DS1338U-33+T&R Datasheet - Page 16

• Manufacturer Part Number: DS1338U-33+T&R
• Description: IC RTC 56BYTE NV RAM 3.3V 8-USOP
• Manufacturer: Maxim Integrated Products
• Type: Clock/Calendar/NVSRAMr

Specifications of DS1338U-33+T&R

• Memory Size: 56B
• Time Format: HH:MM:SS (12/24 hr)
• Date Format: YY-MM-DD-dd
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• 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
REVISION
The Maxim logo is a registered trademark of Maxim Integrated Products, Inc. The Dallas logo is a registered trademark of Dallas Semiconductor Corporation.
100108
DATE
Modified the Features bullet to indicate that battery-backed RAM has unlimited
writes.
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.
Updated the block diagram (Figure 3) to show that SQW is open drain.
Added the initial POR state for time and date registers in the Power Control
section.
Added text to explain the use of the oscillator bit to control battery current in the
Clock and Calendar section.
© 2008 Maxim Integrated Products
DESCRIPTION
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DS1338 I
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