
75 South Street, Hopkinton, MA 01748 800-982-5737 508-435-6831 FAX 508-435-5289 www.valpeyfisher.com RevE0910
1
T5321 Series
T5421 Series
5 x 7 mm Surface Mount High Reliability
Tristate/Non-Tristate, 1MHz to 100MHz
Parameter
Symbol
Condition
Min
Typ
Max
Unit
Note
Frequency
Range
F
1
100
MHz
Frequency
Stability
F/F
Vs. Operating Temperature
25
75
ppm
See
Chart
Aging 1
st Year
After 1
st Year
3
1
Operating
Temperature
Range
T
-55
+125
C
See
Chart
Input Voltage
Vcc
3.00
3.30
3.6
V
Input Current
Icc
16
mA
Waveform
Symmetry
Measured at 50% VDD
40/60
45/55
60/40
%
Rise / Fall
Time
Tr/Tf
CMOS, 15pF,
20% to 80% (<60MHz)
20% to 80% (
≥60MHz)
CMOS, 30pF,
20% to 80% (<60MHz)
20% to 80% (
≥60MHz)
3.0
2.0
4.0
3.0
4.0
2.5
5.0
4.5
ns
Output Level
“Zero”
Level
“One”
Level
Sinking 16mA
Sourcing 8mA
VDD-0.4
0.4
V
Input
requirement
for pin.1
Output enable -
pin 1 may float or 2.8V min (sourcing 400 uA)
Output disable (Tristate)
pin 1 requires 0.4V max (sinking 400 uA)
Features
Leadless chip carrier package is hermetically
sealed for superior aging and field performance
Crystal angle controlled to ±1 minute for excellent
temperature stability
168 hour Class B burn-in and extensive
environmental testing for best performance in
rugged field environments
Start-up time <10 ms, typical
Tristate option available
Calculated MTBF is 3.8x10
6 hours at 125°C
Application
Surface Mounted PCB projects requiring high
reliability CMOS clock waveforms
RoHS Status
Electrical Specifications
Description
These high reliability oscillators provide HCMOS clock
waveforms for applications subjected to the most
stringent environmental conditions. They are
mechanically robust and weigh less than 0.2 grams. This
5x7mm SMD package has a hermetic seal, thus ensuring
the integrity of each oscillator. Each oscillator is burned-
in at 125°C for 168 hours, temperature cycled and
centrifuged then fully tested in accordance with Table 1.
Reliability tests are performed per Table 2. The
calculated MTBF is 3.8x10
6 at 125°C.