Datasheet

Revision history
Table 23. Document revision history
Date Revision Changes
21-Feb-2013 20
Updated title of datasheet; updated Section 3.8: "Century bits"; added Figure 21:
"Century bits CB1 and CB0; moved and modified Table 8: "Examples using
century bits"; added Section 3.9: "Leap year"; added footnote 1 to Table 15:
"Crystals suitable for use with M41T6x series RTCs.
21-Aug-2015 21
Removed M41T63 part number and all references to it from document.
Moved Table 1: "Device summary" to Section 1: "Description"
Replaced Figure 10: "Hardware hookup for SuperCap
TM
backup operation"
Updated Section 6.1: "QFN16 package information"
Updated dimension e in Table 19: "LCC8 – 8-pin, 1.5 x 3.2 mm leadless chip
carrier package mechanical data"
01-Oct-2015 22
Clarified open drain pull-up supply voltage for devices in Table 13: "DC
characteristics"
18-Jan-2019 23 Updated note on Figure 10. Hardware hookup for SuperCap™ backup operation
05-Sep-2019 24 Minor text changes
M41T62, M41T64, M41T65
DS3840 - Rev 24
page 37/42