HCMOS 2.5x2mm 2.5V Oscillator
Rev. 5/20/2008
RoHS Compliant / Pꢁ Free
Model: F240 SERIES
Page 1 of 2
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FEATURES
• 2.5V Operation
• Standby Function
• Tape and Reel (3,000 pcs. STD)
• PART ꢀUMbER SELECTIOꢀLearn More - Internet Required
2.5±0.1
Model
Number
F240
Frequency
Operating
Frequency
Part Number
Stability1 Temperature (ºC) Range (MHz)
778-Frequency-xxxxx
778R-Frequency-xxxxx
779-Frequency-xxxxx
779R-Frequency-xxxxx
780-Frequency-xxxxx
±100PPM
F240R ±100PPM
-20 ~ +70
-40 ~ +85
-20 ~ +70
-40 ~ +85
-20 ~ +70
0.750 ~ 50.000
0.750 ~ 50.000
0.750 ~ 50.000
0.750 ~ 50.000
0.750 ~ 50.000
#4
#3
#2
2.0±0.1
0.8±0.1
F245
F245R
F246
±50PPM
±50PPM
±25PPM
#1
• ELECTRICAL CHARACTERISTICS
MAX (unless otherwise noted)
PARAMETERS
Frequency Range (FO)
Storage Temperature Range (TSTG)
0.750 ~ 50.000 MHz
-55ºC ~ +100ºC
2.5V ± 5%
Supply Voltage
Input Current
(VDD)
(IDD)
0.78
0.68
#1
#4
#2
#3
0.750 ~ 19.999 MHz
19.999+ ~ 39.999 MHz
39.999+ ~ 50.000 MHz
5mA
9mA
11mA
0.65
Output Symmetry (50% VDD)
Rise Time (10% ~ 90% VDD) (TR)
Fall Time (90% ~ 10% VDD) (TF)
40% ~ 60%
10nS
0.95
10nS
Output Voltage
(VOL)
(VOH)
(IOL)
(IOH)
10% VDD
90% VDD Min
4mA Min
-4mA Min
15pF
Recommended
Solder Pad Layout
Output Current
Output Load
(HCMOS)
0.95
Standby Current
Start-up Time
5µA
10mS
200nS
10mS
(TS)
Output Disable Time 2
0.8
Output Enable Time 2
Aging
Reflow Soldering Temp
Moisture Sensitivity Level (MSL)
Termination Finish
0.65
(Ta=25ºC: per year)
± 5 PPM
260ºC / 10 Seconds
1
0.9
Au
1 Inclusive of 25ºC tolerance, operating temperature range, input voltage change, load change, shock,
and vibration.
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 (Pin2) to minimize
power supply noise. All specifications subject to change without notice.
All dimensions are in millimeters.
Pin Connection
#1 E/D
#3 Output
#2 GND
#4 VDD
• EꢀAbLE / DISAbLE FUꢀCTIOꢀ
INH (Pin 1)
OPEN
OUTPUT (Pin 3)
ACTIVE
'1' Level VIH ≥ 80% VDD
'0' Level VIL ≤ 20% VDD
ACTIVE
High Z
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