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參數(shù)資料
| 型號： | MSM58321RS |
| 廠商： | OKI ELECTRIC INDUSTRY CO LTD |
| 元件分類： | 時鐘/數(shù)據(jù)恢復(fù)及定時提取 |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDIP16 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-16 |
| 文件頁數(shù)： | 7/16頁 |
| 文件大?。?/td> | 121K |
| 代理商： | MSM58321RS |
Semiconductor
MSM58321
21
Selection of leap year
No.1
Calendar
D10 digit
D2
D3
Remainder obtained by
dividing the leap year number by 4
Leap years (examples)
1980, 1984, 1988, 1992
1996, 2000, 2004
(83) (87) (91) (95) (99)
55, 59, 63, 67, 71,
75, 79
82, 86, 90, 94, 98,
102, 106
81, 85, 89, 93, 97,
101, 105
0
3
2
1
L
H
L
H
L
H
Gregorian
1
2
3
4
This IC is designed to select leap year automatically.
Four types of leap years can be selected by writing a select signal in the D2 and D3 bits of the D10 digit (CODE =
LLLH). (See table 1 for the functions.)
Gregorian calendar or other calendars can be set arbitrarily in the Y1 and Y10 digits of this IC. There is a leap year
every four years and the year number varies according to the calendar used. There are four combinations of year
numbers and leap years. (See the Table below).
No. 1: Gregorian calendar year. The remainder obtained by dividing the leap year number by 4 is 0.
No. 2: The remainder obtained by dividing the leap year number by 4 is 3.
No. 3: The remainder obtained by dividing the leap year number by 4 is 2.
No. 4: The remainder obtained by dividing the leap year number by 4 is 1.
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