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參數(shù)資料
| 型號： | R2051K01 |
| 廠商： | RICOH COMPANY 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, QCC12 |
| 封裝： | 2 X 2 MM, 0.85 MM PITCH, ULTRA-COMPACT, FFP, 12 PIN |
| 文件頁數(shù)： | 4/53頁 |
| 文件大?。?/td> | 343K |
| 代理商： | R2051K01 |
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R2051 Series
12345
Rev.1.04
- 12 -
n Address Mapping
Address
Register Name
D a t a
A3A2A1A0
D7
D6
D5
D4
D3
D2
D1
D0
0 0 0 0 0
Second Counter
-
*2)
S40
S20
S10
S8
S4
S2
S1
1 0 0 0 1
Minute Counter
-
M40
M20
M10
M8
M4
M2
M1
2 0 0 1 0
Hour Counter
-
H20
P
/A
H10
H8
H4
H2
H1
3 0 0 1 1
Day-of-week Counter
-
W4
W2
W1
4 0 1 0 0
Day-of-month Counter
-
D20
D10
D8
D4
D2
D1
5 0 1 0 1
Month Counter and
Century Bit
/19
20
-
MO10
MO8
MO4
MO2
MO1
6 0 1 1 0
Year Counter
Y80
Y40
Y20
Y10
Y8
Y4
Y2
Y1
7 0 1 1 1
Oscillation Adjustment
Register *3)
DEV
*4)
F6
F5
F4
F3
F2
F1
F0
8 1 0 0 0
Alarm_W
(Minute Register)
-
WM40
WM20
WM10
WM8
WM4
WM2
WM1
9 1 0 0 1
Alarm_W
(Hour Register)
-
WH20
WP
/ A
WH10
WH8
WH
4
WH2
WH
1
A 1 0 1 0
Alarm_W
(Day-of-week Register)
-
WW6
WW5
WW4
WW3
WW2
WW1
WW0
B 1 0 1 1
Alarm_D
(Minute Register)
-
DM40
DM20
DM10
DM8
DM4
DM2
DM1
C 1 1 0 0
Alarm_D
(Hour Register)
-
DH20
DP
/A
DH10
DH8
DH4
DH2
DH1
D 1 1 0 1
-
E 1 1 1 0
Control Register 1 *3)
WALE
DALE
/12
24
SCRA
TCH2
TEST
CT2
CT1
CT0
F 1 1 1 1
Control Register 2 *3)
VDSL
VDET
/XST
PON
*5)
SCRA
TCH1
CTFG
WAFG
DAFG
Notes:
* 1) All the data listed above accept both reading and writing.
* 2) The data marked with "-" is invalid for writing and reset to 0 for reading.
* 3) When the PON bit is set to 1 in Control Register 2, all the bits are reset to 0 in Oscillation Adjustment
Register, Control Register 1 and Control Register 2 excluding the /XST bit.
* 4) When DEV=0, the oscillation adjustment circuit is configured to allow correction of a time count gain or
loss up to
±1.5ppm.
When DEV=1, the oscillation adjustment circuit is configured to allow correction of a time count gain or
loss up to or
±0.5ppm.
* 5) PON is a power-on-reset flag.
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| 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 |
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