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參數(shù)資料
| 型號： | R2023T |
| 廠商： | Ricoh Co., Ltd. |
| 英文描述： | 2-wire Serial Interface Real Time Clock IC |
| 中文描述： | 2線串行接口實時時鐘芯片 |
| 文件頁數(shù)： | 17/50頁 |
| 文件大?。?/td> | 512K |
| 代理商： | R2023T |
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R2023K/T
17
* Correspondences between days of the week and the day-of-week digits are user-definable
(e.g. Sunday = 0, 0, 0)
* The writing of (1, 1, 1) to (W4, W2, W1) is prohibited except when days of the week are unused.
Calendar Counter (Address 4-6h)
Day-of-month Counter (Address 4h)
D7
D6
-
0
0
D5
D20
D20
Indefi
nite
D4
D10
D10
Indefi
nite
D3
D8
D8
Indefi
nite
D2
D4
D4
Indefi
nite
D1
D2
D2
Indefi
nite
D0
D1
D1
Indefi
nite
-
0
0
(For Writing)
(For Reading)
Default Settings *)
Month Counter + Century Bit (Address 5h)
D7
D6
19 /20
-
19 /20
0
Indefi
nite
Year Counter (Address 6h)
D7
D6
Y80
Y40
Y80
Y40
Indefi
nite
nite
*) 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.
D5
-
0
0
D4
MO10
MO10
Indefi
nite
D3
MO8
MO8
Indefi
nite
D2
MO4
MO4
Indefi
nite
D1
MO2
MO2
Indefi
nite
D0
MO1
MO1
Indefi
nite
(For Writing)
(For Reading)
Default Settings *)
0
D5
Y20
Y20
Indefi
nite
D4
Y10
Y10
Indefi
nite
D3
Y8
Y8
Indefi
nite
D2
Y4
Y4
Indefi
nite
D1
Y2
Y2
Indefi
nite
D0
Y1
Y1
Indefi
nite
(For Writing)
(For Reading)
Default Settings *)
Indefi
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| R2023T-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2-wire Serial Interface Real Time Clock IC |
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| R2025S | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:High precision I2C-Bus Real-Time Clock Module |
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