HCMOS 2.5V 32.768kHz SMD Oscillator
Rev. 7/30/2014
RoHS/REACH Compliant / Pb Free
Model: FK245 Series
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FEAꢄuRES
• Tight Stability
• 2.5V Operation
• HCMOS Output
• Standby Function
• PARꢄ ꢀuMꢁER SEꢂECꢄꢃOꢀ
Model
Operating
Temperature (ºC)
-20 ~ +70
Frequency
Stability(PPM)
Part Number
Number
864E-Frequency-xxxxx
864F-Frequency-xxxxx
864G-Frequency-xxxxx
864H-Frequency-xxxxx
864J-Frequency-xxxxx
±50
±50
±25
±25
±20
FK245
FK245R
FK246
FK246R
FK248
-40 ~ +85
-20 ~ +70
-40 ~ +85
-10 ~ +60
• EꢂECꢄRꢃCAꢂ CHARACꢄERꢃSꢄꢃCS
MAX (unless otherwise noted)
32.768kHz
PARAMETERS
Frequency Range (Fo)
Temperature Range
Operating
Storage
Supply Voltage
Input Current
(Topr)
See Part Number Selection
-55ºC ~ +125ºC
2.5V ± 10%
126 µA
(Tstg)
(Vdd)
(Idd)
Output Symmetry (50% Vdd)
Rise Time (10% ~ 90% Vdd) (Tr)
Fall Time (90% ~ 10% Vdd) (Tf)
45% ~ 55%
50 nS
50 nS
Output Voltage
(Vol)
(Voh)
(HCMOS)
(Istd)
(Ts)
10% Vdd
90% Vdd Min
15 pF
10 µA
2 mS
1 uS
2 mS
±3 PPM
260ºC / 10 Seconds
1
Output Load
Standby Current
Start-up Time
Output Disable Time 2
Output Enable Time 2
Aging (@25ºC 1st Year)
Maximum Soldering Temp / Time
Moisture Sensitivity Level (MSL)
Termination Finish
Au over Ni
1 Inclusive of 25ºC tolerance, operating temperature range, supply voltage change and aging.
2 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 Vdd (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.
• EꢀAꢁꢂE / DꢃSAꢁꢂE FuꢀCꢄꢃOꢀ
Pin 1
OPEN 2
OUTPUT (Pin 3)
ACTIVE
'1' Level Vih ≥ 70% Vdd
'0' Level Vil ≤ 30% Vdd
ACTIVE
High Z
Fox Electronics
5570 Enterprise Parkway
Fort Myers, Florida 33905
USA +1.239.693.0099
FAX +1.239.693.1554
An Integrated Device Technology, Inc. company
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