
DS1746/DS1746P Y2K-Compliant, Nonvolatile Timekeeping RAMs
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are implied. Maxim Integrated 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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REVISION HISTORY
REVISION
DATE
DESCRIPTION
PAGES
CHANGED
080508
Added UL recognition information and weblink to the Pin Description table;
corrected the top mark for –70 part numbers in the Ordering Information table;
updated the write timing diagrams to show tWR as specified by RAM vendors
2, 3, 10, 12
9/10
Updated the Ordering Information table top mark information; updated the Absolute
Maximum Ratings section to include the storage temperature range and lead and
soldering temperatures for EDIP and PowerCap packages; added Note 10 to the ICC
parameter in the DC Electrical Characteristics tables (for 5.0V and 3.3V) and the
Notes section; updated the Package Information table
3, 8, 9, 15
3/12
Updated the Absolute Maximum Ratings section to add the 5V and 3.3V voltage range
8
6/13
Replaced the Setting the Clock section
5