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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)： | 16/50頁 |
| 文件大?。?/td> | 512K |
| 代理商： | R2023T |
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R2023K/T
Time Counter (Address 0-2h)
16
Second Counter (Address 0h)
D7
-
0
0
D6
S40
S40
Indefi
nite
D5
S20
S20
Indefi
nite
D4
S10
S10
Indefi
nite
D3
S8
S8
Indefi
nite
D2
S4
S4
Indefi
nite
D1
S2
S2
Indefi
nite
D0
S1
S1
Indefi
nite
(For Writing)
(For Reading)
Default Settings *)
Minute Counter (Address 1h)
D7
-
0
0
D6
M40
M40
Indefi
nite
D5
M20
M20
Indefi
nite
D4
M10
M10
Indefi
nite
D3
M8
M8
Indefi
nite
D2
M4
M4
Indefi
nite
D1
M2
M2
Indefi
nite
D0
M1
M1
Indefi
nite
(For Writing)
(For Reading)
Default Settings *)
Hour Counter (Address 2h)
D7
-
D6
-
D5
P/ A
or
H20
P/ A
or
H20
Indefi
nite
D4
H10
D3
H8
D2
H4
D1
H2
D0
H1
(For Writing)
0
0
H10
H8
H4
H2
H1
(For Reading)
0
0
Indefi
nite
Indefi
nite
Indefi
nite
Indefi
nite
Indefi
nite
Default Settings *)
*) Default settings: Default value means read / written values when the PON bit is set to “1” due to VDD
power-on from 0 volts.
* Time digit display (BCD format) as follows:
The second digits range from 00 to 59 and are carried to the minute digit in transition from 59 to 00.
The minute digits range from 00 to 59 and are carried to the hour digits in transition from 59 to 00.
The hour digits range as shown in "P12
Control Register 1 (ADDRESS Eh) (2) 12 /24: 12 /24-hour
Mode Selection Bit" and are carried to the day-of-month and day-of-week digits in transition from PM11 to
AM12 or from 23 to 00.
* Any writing to the second counter resets divider units of less than 1 second.
* Any carry from lower digits with the writing of non-existent time may cause the time counters to malfunction.
Therefore, such incorrect writing should be replaced with the writing of existent time data.
Day-of-week Counter (Address 3h)
D7
-
0
0
D6
-
0
0
D5
-
0
0
D4
-
0
0
D3
-
0
0
D2
W4
W4
Indefi
nite
D1
W2
W2
Indefi
nite
D0
W1
W1
Indefi
nite
(For Writing)
(For Reading)
Default Settings *)
*) 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 day-of-week counter is incremented by 1 when the day-of-week digits are carried to the day-of-month
digits.
* Day-of-week display (incremented in septimal notation):
(W4, W2, W1) = (0, 0, 0)
→
(0, 0, 1)
→
…
→
(1, 1, 0)
→
(0, 0, 0)
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PDF描述 |
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| R2023T-E2 | 2-wire Serial Interface Real Time Clock IC |
| R2025D | High precision I2C-Bus Real-Time Clock Module |
| R2025S | High precision I2C-Bus Real-Time Clock Module |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| R2-0257-02 | 制造商:Southco 功能描述: |
| R2-0259-02 | 制造商:Southco 功能描述: |
| R2025D | 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 |
| 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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