Datasheet

DS3231
Extremely Accurate I
2
C-Integrated
RTC/TCXO/Crystal
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is a registered trademark of Maxim Integrated Products, Inc.
Revision History (continued)
REVISION
NUMBER
REVISION
DATE
DESCRIPTION
PAGES
CHANGED
Updated the Typical Operating Circuit. 1
Removed the V
PU
parameter from the Recommended DC Operating Conditions
table and added verbiage about the pullup to the Pin Description table for INT/SQW,
SDA, and SCL.
2, 9
Added the Delta Time and Frequency vs. Temperature graph in the Typical
Operating Characteristics section.
7
Updated the Block Diagram. 8
Added the V
BAT
Operation section, improved some sections of text for the 32kHz
TCXO and Pushbutton Reset Function sections.
10
Added the register bit POR values to the register tables. 13, 14, 15
Updated the Aging Offset and Temperature Registers (11h–12h) sections. 14, 15
6 10/08
Updated the I
2
C timing diagrams (Figures 3, 4, and 5). 16, 17
7 3/10
Removed the “S” from the top mark in the Ordering Information table and the Pin
Configuration to match the packaging engineering marking specification.
1, 18