參數(shù)資料
型號： R2051K
英文描述： real-time clock ICs
中文描述： 實時時鐘IC
文件頁數(shù)： 18/53頁
文件大?。?/td> 343K
代理商： R2051K
R2051 Series
G
Calendar Counter (Address 4-6h)
Day-of-month Counter (Address 4h)
D7
D6
-
-
0
0
0
0
Month Counter + Century Bit (Address 5h)
D7
D6
/19
20
-
/19
20
0
Indefinite
0
Year Counter (Address 6h)
D7
D6
Y80
Y40
Y80
Y40
Indefinite
Indefinite
*) Default settings: Default value means read / written values when the PON bit is set to “1” due to VDD
power-on from 0 volts.
*
The calendar counters are configured to display the calendar digits in BCD format by using the
automatic calendar function as follows:
The day-of-month digits (D20 to D1) range from 1 to 31 for January, March, May, July, August, October,
and December; from 1 to 30 for April, June, September, and November; from 1 to 29 for February in leap
years; from 1 to 28 for February in ordinary years. The day-of-month digits are carried to the month
digits in reversion from the last day of the month to 1. The month digits (MO10 to MO1) range from 1 to
12 and are carried to the year digits in reversion from 12 to 1.
The year digits (Y80 to Y1) range from 00 to 99 (00, 04, 08,
…
, 92, and 96 in leap years) and are carried
to the /19
20 digits in reversion from 99 to 00.
The /19
20 digits cycle between 0 and 1 in reversion from 99 to 00 in the year digits.
*
Any carry from lower digits with the writing of non-existent calendar data may cause the calendar
counters to malfunction. Therefore, such incorrect writing should be replaced with the writing of
existent calendar data.
G
Oscillation Adjustment Register (Address 7h)
D7
D6
D5
D4
D3
DEV
F6
F5
F4
F3
DEV
F6
F5
F4
F3
0
0
0
0
0
*) Default settings: Default value means read / written values when the PON bit is set to “1” due to VDD
power-on from 0 volts.
DEV bit
When DEV is set to 0, the Oscillation Adjustment Circuit operates 00, 20, 40 seconds.
When DEV is set to 1, the Oscillation Adjustment Circuit operates 00 seconds.
F6 to F0 bits
The Oscillation Adjustment Circuit is configured to change time counts of 1 second on the basis of the
settings of the Oscillation Adjustment Register at the timing set by DEV.
12345
Rev.1.04 - 18 -
D5
D20
D20
Indefinite
D4
D10
D10
Indefinite
D3
D8
D8
Indefinite
D2
D4
D4
Indefinite
D1
D2
D2
Indefinite
D0
D1
D1
Indefinite
(For Writing)
(For Reading)
Default Settings *)
D5
-
0
0
D4
MO10
MO10
Indefinite
D3
MO8
MO8
Indefinite
D2
MO4
MO4
Indefinite
D1
MO2
MO2
Indefinite
D0
MO1
MO1
Indefinite
(For Writing)
(For Reading)
Default Settings *)
D5
Y20
Y20
Indefinite
D4
Y10
Y10
Indefinite
D3
Y8
Y8
Indefinite
D2
Y4
Y4
Indefinite
D1
Y2
Y2
Indefinite
D0
Y1
Y1
Indefinite
(For Writing)
(For Reading)
Default Settings *)
D2
F2
F2
0
D1
F1
F1
0
D0
F0
F0
0
(For Writing)
(For Reading)
Default Settings *)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
R2051K01-E2 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2 wire interface Real-Time Clock ICs with Battery Backup switch-over Function
R2051K02-E2 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2 wire interface Real-Time Clock ICs with Battery Backup switch-over Function
R2051S01-E2 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2 wire interface Real-Time Clock ICs with Battery Backup switch-over Function
R2051S02-E2 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2 wire interface Real-Time Clock ICs with Battery Backup switch-over Function
R2051S03-E2 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2 wire interface Real-Time Clock ICs with Battery Backup switch-over Function
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