M41T65 STMICROELECTRONICS [STMicroelectronics], M41T65 Datasheet - Page 30

• Manufacturer Part Number: M41T65
• Description: Serial real-time clocks with alarm
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Clock operation
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Table 9.
1. All other control bits power up in an undetermined state.
Table 10.
1. Leap year occurs every four years (for years evenly divisible by four), except for years evenly divisible by
Initial
power-up
Condition
100. The only exceptions are those years evenly divisible by 400 (the year 2000 was a leap year, year
2100 is not).
(1)
CB0
0
0
1
1
Initial power-on default values
Century bits examples
M41T62
M41T63
M41T64
M41T65
Device ST OF OFIE OUT FT AFE SQWE 32KE RS3-1 RS0 Watchdog
0
0
0
0
1
1
1
1
Doc ID 10397 Rev 14
N/A
N/A
CB1
0
0
0
1
0
1
N/A N/A N/A
N/A N/A N/A
1
1
N/A
0
0
0
Leap year?
N/A
Yes
No
No
No
1
1
0
N/A
N/A
N/A
1
N/A
0
0
0
M41T62/63/64/65
Example
N/A
1
1
1
2000
2100
2200
2300
(1)
0
0
0
0