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RV-3049 Datasheet(PDF) 14 Page - MICORO CRYSTAL SWITZERLAND

Part # RV-3049
Description  DTCXO Temperature Compensated Real Time Clock
PDF  65 Pages
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Manufacturer  MICROCRYSTAL [MICORO CRYSTAL SWITZERLAND]
Direct Link  http://www.microcrystal.com
Logo MICROCRYSTAL - MICORO CRYSTAL SWITZERLAND

RV-3049 Datasheet(HTML) 14 Page - MICORO CRYSTAL SWITZERLAND

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Micro Crystal
DTCXO Temperature Compensated Real Time Clock / Calendar Module
RV-3049
14/65
Days (address 0Bh…bits description)
Address
Function
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0Bh
Days
X
X
20
10
8
4
2
1
Bit
Symbol
Value
Description
7 to 6
X
-
Unused
5 to 0
Days
1 to 31
This register holds the current days coded in BCD format
1)
1) The RTC compensates for leap years by adding a 29th day to February if the year counter contains a value which is exactly divisible by 4;
including the year 00.
Weekdays (address 0Ch…bits description)
Address
Function
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0Ch
Weekdays
X
X
X
X
X
4
2
1
Bit
Symbol
Value
Description
7 to 3
X
-
Unused
2 to 0
Weekdays
1 to 7
This register holds the current weekdays coded in BCD format
1)
Weekdays
1)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Sunday
X
X
X
X
X
0
0
1
Monday
X
X
X
X
X
0
1
0
Tuesday
X
X
X
X
X
0
1
1
Wednesday
X
X
X
X
X
1
0
0
Thursday
X
X
X
X
X
1
0
1
Friday
X
X
X
X
X
1
1
0
Saturday
X
X
X
X
X
1
1
1
1) These bits may be re-assigned by the user.
Months (address 0Dh…bits description)
Address
Function
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0Dh
Months
X
X
X
10
8
4
2
1
Bit
Symbol
Value
Description
7 to 5
X
-
Unused
4 to 0
Months
1 to 12
This register holds the current months coded in BCD format
1)
Months
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
January
X
X
X
0
0
0
0
1
February
X
X
X
0
0
0
1
0
March
X
X
X
0
0
0
1
1
April
X
X
X
0
0
1
0
0
May
X
X
X
0
0
1
0
1
June
X
X
X
0
0
1
1
0
July
X
X
X
0
0
1
1
1
August
X
X
X
0
1
0
0
0
September
X
X
X
0
1
0
0
1
October
X
X
X
1
0
0
0
0
November
X
X
X
1
0
0
0
1
December
X
X
X
1
0
0
1
0
1) The RTC compensates for leap years by adding a 29th day to February if the year counter contains a value which is exactly divisible by 4;
including the year 00.



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