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參數(shù)資料
| 型號： | RS5C372B-E2 |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | XO, clock |
| 英文描述： | I2C-bus Serial Interface Real Time Clock (8pin SSOP) |
| 中文描述： | REAL TIME CLOCK, PDSO8 |
| 封裝： | 0.65 MM PITCH, SSOP-8 |
| 文件頁數(shù)： | 9/39頁 |
| 文件大?。?/td> | 474K |
| 代理商： | RS5C372B-E2 |
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RS5C372B
- 9 -
I
Functional Description
1. Allocation of Internal Addresses
Internal
Address
Contents
Data *1)
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- the-Week Counter
-
-
-
-
W4
W2
W1
4
0 1 0 0
Day Counter
-
-
D20
D10
D8
D4
D2
D1
5
0 1 0 1
Month Counter
-
-
-
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
Time Trimming Register
/XSL
F6
F5
F4
F3
F2
F1
F0
8
1 0 0 0
Alarm_A (Minute Register)
-
AM40 AM20 AM10
AM8
AM4
AM2
AM1
9
1 0 0 1
Alarm_A (Hour Register)
-
-
AH20
AP
/A
AW5
AH10
AH8
AH4
AH2
AH1
A
1 0 1 0
Alarm_A
(Day
-
of
-
the
-
week Register)
-
AW6
AW4
AW3
AW2
AW1
AW0
B
1 0 1 1
Alarm_B (Minute Register)
-
BM40 BM20 BM10
BM8
BM4
BM2
BM1
C
1 1 0 0
Alarm_B (Hour Register)
-
-
BH20
BP
/A
BW5
BH10
BH8
BH4
BH2
BH1
D
1 1 0 1
Alarm_B
(Day
-
of
-
the
-
week Register)
-
BW6
BW4
BW3
BW2
BW1
BW0
E
1 1 1 0
Control Register 1
AALE BALE
0 *5)
/12
24
0 *5)
TEST
CT2
CT1
CT0
F
1 1 1 1
Control Register 2
-
-
ADJ
XSTP
*3),*4)
/CLEN CTFG AAFG BAFG
*1) All the listed data can be read and written except for ADJ/XSTP.
*2) The “–” mark indicates data which can be read only and set to “0” when read.
*3) The ADJ/XSTP bit of the control register2 is set to ADJ for write and XSTP for read operation.
The XSTP bit is set to “0” by writing data into the control register2 for normal oscillation.
*4) When XSTP is set to “1” the /XSL, F6 to F0, CT2 to CT0, AALE, BALE, /CLEN and TEST bits
are reset to “0”.
*5) These bits must be set to “0” in any case.
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