DS1337 I
2
C Serial Real-Time Clock
REVISION HISTORY
REVISION
DATE
DESCRIPTION
PAGES
CHANGED
Added device access details to General Description section. 1
Removed leaded ordering numbers from the Ordering Information table. 1
Added Note 5 to Timekeeping V
CC
EC table range. 2
Added “Full Operation” and “Timekeeping” to headers to clarify table usage. 2
Added OSF parameter to EC table. 3
Updated Pin Description to indicate max input voltage and that unused outputs
may be left open.
5
Added oscillator circuit and show open-drain transistors on Block Diagram. 6
Added Operating Mode section with details on operating mode and
corresponding Icc parameter.
7
Added I
2
C Interface section explaining how to synchronize a microcontroller and
the RTC.
8
080508
Corrected legend in figure 5 for not-acknowledge (add overbar to symbol). 14
071609 Removed conflicting SDA/SCL input bias statement in Pin Description. 5
16
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Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied.
Maxim reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical
Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
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2009 Maxim Integrated
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