F254 Datasheet, PDF (1/2 Pages) Fox Electronics – HCMOS 32.768kHz 4x2.5mm SMD Oscillator

HCMOS 32.768kHz 4x2.5mm SMD Oscillator
Model: F254
Page 1 of 2
RoHS Compliant / Pb Free
Rev. 6/26/2008
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FEATURES
• Tight Stability
• HCMOS Output
• Operable 1.3V ~ 5.5V
• Tape and Reel (1,000 pcs. STD)
• PART NUMBER SELECTION ^{Learn More - Internet Required}
Part Number
Model
Number
Frequency
Operating Frequency
Stability Temperature (ºC) (kHz)
784-Frequency-xxxxx F254 -120 ~ +10 PPM -40 ~ +85
32.768
• ELECTRICAL CHARACTERISTICS
PARAMETERS
MAX (unless otherwise noted)
Frequency Range (Fo)
32.768 kHz
Temperature Range
Operating (Topr)
-40ºC ~ +85ºC
Storage (Tstg)
-55ºC ~ +125ºC
Frequency Tolerance

(Vdd = 3.3V @ 25ºC)
+5±20 PPM
Frequency Stability
Over Temperature Range
(-20ºC ~ +70ºC: ref @ 25ºC)
-120 ~ +10 PPM
Supply Voltage (Vdd)
3.3V ± 10%
(+1.3V ~ +5.5V operable)
Input Current
(Idd)
1.5 µA
Symmetry
(50% Vdd)
40/60%
Rise Time
(Tr)
200nS
Fall Time
(Tf)
200nS
Standby Current (Ist)
250nA
Output Voltage (Vol)
0.4V

(Voh)
Vdd -0.4V Min
Output Load
(HCMOS)
15pF
Start-up Time (Ts)

(Vdd = 1.3V ~ 5.5V, -40ºC ~ +85ºC)
1S
Reflow Soldering Temp
260ºC x 10 Seconds
Moisture Sensitivity Level (MSL)
1
Termination Finish
Au
1 _{If Enable/Disable function is not used, please pull Pin 1 to a high potential.}
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.
4 .0 ±0 .2
#4
#3
#1
#2
2 .5 ±0 .2
0 .9 ±0 .1
#1
#2 0.65
1.0
#5
#6
#4
#3
2.0
0.9
Recommended
Solder Pad Layout
1.1
1.8
0.9
3.0
All dimensions are in millimeters.
Pin Connection
#1 E/D
#3 Output
#2 GND
#4 Vdd
#5 NC
#6 NC
• Enable / Disable Function
(Pin 1)
'1' Level Vih ≥ 90% Vdd
'0' Level Vil ≤ 10% Vdd
OUTPUT (Pin 3)
ACTIVE¹
High Z
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