HCMOS 2.5x2mm 2.5V Oscillator
Rev. 12/2/2010
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
Model
Number
F240
F240R ±100PPM
F245
Frequency
Operating
Frequency
2 .6 Ma x
Part Number
Stability1 Temperature (ºC) Range (MHz)
778-Frequency-xxxxx
778R-Frequency-xxxxx
779-Frequency-xxxxx
779R-Frequency-xxxxx
780-Frequency-xxxxx
±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
# 3
# 4
±50PPM
±50PPM
±25PPM
T o p
V ie w
2 .1 m a x
F245R
F246
# 2
# 1
• ELECTRICAL CHARACTERISTICS
Do t d e n o t e s
p in 1 .
MAX (unless otherwise noted)
PARAMETERS
Frequency Range (Fo)
Storage Temperature Range (Tstg)
0.750 ~ 50.000 MHz
-55ºC ~ +100ºC
2.5V ± 5%
1 .0 Ma x
Supply Voltage
Input Current
(Vdd)
(Idd)
0.750 ~ 19.999 MHz
19.999+ ~ 39.999 MHz
39.999+ ~ 50.000 MHz
Output Symmetry (50% Vdd)
Rise Time (10% ~ 90% Vdd) (Tr)
Fall Time (90% ~ 10% Vdd) (Tf)
5mA
9mA
11mA
0 .7 8
B o t t o m
V ie w
# 1
# 4
# 2
# 3
0 .6 5
40% ~ 60%
10nS
0 .6 8
10nS
0 .9 5
Output Voltage
(Vol)
(Voh)
(Iol)
(Ioh)
10% Vdd
90% Vdd Min
4mA Min
-4mA Min
15pF
Output Current
R e c o m m e n d e d
Output Load
(HCMOS)
Standby Current
Start-up Time
S o ld e r P a d L a yo u t
5µA
10mS
200nS
10mS
(Ts)
Output Disable Time 2
0 .9 5
Output Enable Time 2
Aging
(Ta=25ºC: per year)
± 5 PPM
260ºC / 10 Seconds
1
0 .8
Reflow Soldering Temp
Moisture Sensitivity Level (MSL)
Termination Finish
0 .6 5
Au
1 Inclusive of 25ºC tolerance, operating temperature range, input voltage change, load change, shock,
and vibration.
0 .9
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.
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.
All dimensions are in millimeters.
P in C o n n e c t io n s
# 1 E /D
# 3 Ou t p u t
# 2 G N D
# 4 V DD
• 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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