m41t81 STMicroelectronics, m41t81 Datasheet - Page 29

• Manufacturer Part Number: m41t81
• Description: Serial Access Real-time Clock With Alarms
• Manufacturer: STMicroelectronics

M41T81
8
Revision history
Table 16.
December 2001
12-Jul-2006
01-May-02
12-Sep-03
13-Sep-04
05-Mar-03
21-Jan-02
05-Jun-02
10-Jun-02
11-Oct-02
21-Jan-03
27-Apr-04
17-Jun-04
03-Jun-05
03-Jul-02
7-Sep-04
Date
Revision history
Revision
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
2.0
3.0
4.0
5.0
6.0
7
8
First issue
Fix table footnotes
Modify reflow time and temperature footnote
Modify data retention text, trip points
Corrected supply voltage values
Modify DC characteristics, crystal electrical table footnotes, preferred
default values
Add marketing status (Figure 2;
Table
Add embedded crystal package option (Figure 1, 3, 23; Table 16);
modified pre-existing mechanical drawing
Correct dimensions (Table 16); remove SNAPHAT
Updated disclaimer, v2.2 template; add SOX18 package (Figure 2, 4;
Table
Reformatted; update characteristics (Figure 4, 3,
Figure
Reformatted; add lead-free information; add dual footprint
connections (Figure
Update footprint and maximum ratings (Figure 5;
Update max ratings
Remove SOX18 and SOX28 references (Features summary,
Figure
Changed document to new template; Updated package mechanical
data in
changes for entire document; ecopack compliant.
9)
15)
13,
1;
Section 6: Package mechanical
Table
Table
(Table
1,
1,
Table
(Table
Table
(Table
5;Table
9,
Table
6,
6,
9,
Revision details
Table
6)
Table
Table
6,
10,
Table
Table
10,
(Table
Table
9,
10)
Table
Table
15)
(Table
15); adjust footnotes
6,
5)
information; small text
Table
(Figure
12,
15)
12)
(Table
Table
7)
Figure
Table
17;
®
Revision history
6)
package option
15)
Table
6)
3,
Figure
(Figure
14).
29/30
10,
2;