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參數資料
| 型號： | NR8576BB |
| 廠商： | Seiko NPC Corporation |
| 英文描述： | Real-time Clock Modules |
| 中文描述： | 實時時鐘模塊 |
| 文件頁數： | 8/10頁 |
| 文件大小： | 86K |
| 代理商： | NR8576BB |
NR8576 Series
NIPPON PRECISION CIRCUITS—8
FUNCTIONAL DESCRIPTION
Timer data configuration
I
Counter data in BCD code format
I
Automatic long/short month and leap-year adjustment
I
24-hour time display
I
LSB first write and read data
1. * bit: Optional write bits.
2. FDT bit: Supply voltage detect bit
The FDT bit is set to 1 when the voltage between VDD and VSS falls below 1.7 ± 0.3 V.
The FDT bit is reset to 0 for data reads longer than 48 bits. Note that the FDT bit is not reset to 0 for data
reads of 47 bits or less.
The read/write data bits should be should be set to 0. After the supply voltage is applied, the FDT bit
should be set to 0.
3. TM bit: Factory test bit. Should be set to 0 for normal use.
FDT
S40
S20
S10
S8
S1
S2
S4
mi40
mi20
mi10
mi8
mi1
mi2
mi4
h20
h10
h8
h1
h2
h4
w1
w2
w4
d20
d10
d8
d1
d2
d4
mo10
mo8
mo1
mo2
mo4
TM
y80
y40
y20
y10
y8
y1
y2
y4
MSB
LSB
Second ( 0 to 59 )
Minute ( 0 to 59 )
Hour ( 0 to 23 )
Week ( 1 to 7 )
Day ( 1 to 31 )
Month ( 1 to 12 )
Year ( 0 to 99 )
VDD
CE
V
DET
FDT
(READ MODE)
Detected Pulse
0.5 second
0.5 second
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