bq3285ED/LD
Recommended DC Operating Conditions—bq3285ED (TA = TOPR
)
Symbol
VCC
Parameter
Supply voltage
Minimum
Typical
Maximum
Unit
V
4.5
0
5.0
5.5
VSS
VIL
VIH
VBC
Supply voltage
0
-
0
0.8
V
Input low voltage
Input high voltage
Backup cell voltage
-0.3
2.2
2.4
V
-
VCC + 0.3
4.0
V
-
V
Note:
Typical values indicate operation at TA = 25°C.
Recommended DC Operating Conditions—bq3285LD (TA = TOPR
)
Symbol
VCC
Parameter
Supply voltage
Minimum
Typical
Maximum
Unit
V
2.7
0
3.0
5.5
VSS
VIL
VIH
VBC
Supply voltage
0
-
0
0.6
V
Input low voltage
Input high voltage
Backup cell voltage
-0.3
2.2
2.4
V
-
VCC + 0.3
4.0
V
-
V
Note:
Typical values indicate operation at TA = 25°C.
Crystal Specifications—bq3285ED/LD (DT-26 or Equivalent)
Symbol
Parameter
Oscillation frequency
Minimum
Typical
Maximum
Unit
fO
-
32.768
-
kHz
pF
CL
TP
Load capacitance
-
6
-
30
Temperature turnover point
Parabolic curvature constant
Quality factor
20
25
°C
k
-
-
-0.042
-
ppm/°C
Q
40,000
70,000
R1
Series resistance
-
-
-
-
-
-
1.1
430
-
45
KΩ
C0
Shunt capacitance
Capacitance ratio
1.8
600
1
pF
C0/C1
DL
∆f/fO
Drive level
µW
Aging (first year at 25°C)
1
-
ppm
July 1997
12
TI [ TEXAS INSTRUMENTS ]
