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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： | 4/10頁 |
| 文件大小： | 86K |
| 代理商： | NR8576BB |
NR8576 Series
NIPPON PRECISION CIRCUITS—4
Oscillator Characteristics
DC Electrical Characteristics
V
SS
= 0 V, V
DD
= 5.0 V ± 10%, T
a
=
40 to 85
°
C unless otherwise noted
Parameter
Symbol
Condition
Rating
Unit
Frequency deviation
f/f
O
T
V
a
DD
= 25
= 5.0 V
°
C,
NR8576
×
A
5 ± 12
ppm
NR8576
×
B
5 ± 23
ppm
Frequency temperature characteristic
T
op
T
V
a
DD
=
= 5.0 V, 25
10 to 70
°
C,
°
C std
+10/
120
ppm
Frequency voltage characteristic
f/V
T
V
a
DD
= 25
= 2.0 to 5.5 V
°
C,
±2
ppm/V
Oscillator start time
t
STA
T
a
= 25
°
C, V
DD
= 2.5 V
3
s
Aging
f
A
T
first year
a
= 25
°
C, V
DD
= 5.0 V,
±5
ppm
Parameter
Symbol
Condition
Rating
Unit
min
typ
max
Current consumption
I
DD1
V
DD
= 5.0 V
CE = V
FSEL = V
FOUT: floating
SS
, FOE = V
,
SS
,
DD
–
1.5
3.0
μA
I
DD2
V
DD
= 3.0 V
–
1.0
2.0
μA
I
DD3
V
DD
= 2.0 V
–
0.5
1.0
μA
I
DD4
V
DD
= 5.0 V
CE = V
FSEL = V
FOUT: 32 kHz output
SS
, FOE = V
,
DD
,
SS
–
4.0
10.0
μA
I
DD5
V
DD
= 3.0 V
–
2.5
6.5
μA
I
DD6
V
DD
= 2.0 V
–
1.5
4.0
μA
HIGH-level input voltage
V
IH
CE, FSEL, WR, FOE, CLK, DATA
0.8V
DD
–
–
V
LOW-level input voltage
V
IL
CE, FSEL, WR, FOE, CLK, DATA
–
–
0.2V
DD
V
Input OFF leakage current
I
OFF
CE, FSEL, WR, FOE, CLK;
V
IN
= V
DD
or V
SS
–
–
0.5
μA
HIGH-level output voltage
V
OH1
V
DD
= 5.0 V
I
DATA, FOUT
OH
=
1.0 mA;
4.5
–
–
V
V
OH2
V
DD
= 3.0 V
2.0
–
–
V
LOW-level output voltage
V
OL1
V
DD
= 5.0 V
I
DATA, FOUT
OL
= 1.0 mA;
–
–
0.5
V
V
OL2
V
DD
= 3.0 V
–
–
0.8
V
Output load fanout
N/C
L
FOUT
2 LSTTL/30 pF max.
Output leakage current
I
OZH
V
OUT
= 5.5 V; DATA, FOUT
1.0
–
1.0
μA
I
OZL
V
OUT
= 0 V; DATA, FOUT
1.0
–
1.0
μA
Supply voltage detect
threshold voltage
V
DT
1.4
1.7
2.0
V
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