HCMOS 2.5V 32.768kHz SMD Oscillator
Page 1 of 1
Model: FK245 Series
RoHS/REACH Compliant / Pb Free
http://www.foxonline.com/need_a_sample.htm
Rev. 7/30/2014
FEAtuRES
•
•
•
•
Tight Stability
2.5V Operation
HCMOS Output
Standby Function
• PARt nuMbER SElECtiOn
Part Number
864E-Frequency-xxxxx
864F-Frequency-xxxxx
864G-Frequency-xxxxx
864H-Frequency-xxxxx
864J-Frequency-xxxxx
Model
Number
FK245
FK245R
FK246
FK246R
FK248
Frequency
Stability
(PPM)
±50
±50
±25
±25
±20
Operating
Temperature (ºC)
-20 ~ +70
-40 ~ +85
-20 ~ +70
-40 ~ +85
-10 ~ +60
• ElECtRiCAl CHARACtERiStiCS
PARAMETERS
MAX
(unless otherwise noted)
32.768kHz
See Part Number Selection
-55ºC ~ +125ºC
2.5V ± 10%
126 µA
45% ~ 55%
50 nS
50 nS
10% V
dd
90% V
dd
Min
15 pF
10 µA
2 mS
1 uS
2 mS
±3 PPM
260ºC / 10 Seconds
1
Au over Ni
Frequency Range (F
o
)
Temperature Range
Operating
(T
opr
)
Storage
(T
stg
)
Supply Voltage
(V
dd
)
Input Current
(I
dd
)
Output Symmetry (50% V
dd
)
Rise Time (10% ~ 90% V
dd
) (T
r
)
Fall Time (90% ~ 10% V
dd
) (T
f
)
Output Voltage
(V
ol
)
(V
oh
)
Output Load
(HCMOS)
Standby Current (I
std
)
Start-up Time
(T
s
)
Output Disable Time
2
Output Enable Time
2
Aging (@25ºC 1
st
Year)
Maximum Soldering Temp / Time
Moisture Sensitivity Level (MSL)
Termination Finish
1
2
Inclusive of 25
º
C tolerance, operating temperature range, supply voltage change and aging.
An internal pullup resistor from pin 1 to pin 4 allows active output if pin 1 is left open.
*Note: A 0.01µF capacitor should be placed between V
dd
(Pin 4) and GND (Pin 2) to
minimize power supply line noise.
*Drawing is for reference to critical specifications defined by size measurements.
Certain non-critical visual attributes, such as side castellations, reference pin shape, etc. may
vary.
All specifications subject to change without notice.
• EnAblE / DiSAblE FunCtiOn
Pin 1
OUTPUT (Pin 3)
OPEN
2
ACTIVE
'1' Level V
ih
≥
70% V
dd
ACTIVE
'0' Level V
il
≤
30% V
dd
High Z
Fox Electronics
5570 Enterprise Parkway
Fort Myers, Florida 33905
USA +1.239.693.0099
FOXonline.com
FAX +1.239.693.1554
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Power technology
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