Extended Temperature/COTS
XO, 3.3V
20KHz to 100MHz
Features
RoHS Status
Tiny 5X7 SMD form factor
Hermetically sealed for rugged environmental
conditions
Extremely wide operating temperature range
accommodates harsh environments
All crystals are processed in-house with tight angle
control to assure best frequency-temperature
characteristics
All units are vacuum baked before sealing at 175°C
for 16 hours to eliminate moisture traces and pre-age
units for superior stability
Tristate feature optional
Equivalent 5V parts are available in series T1254
Description
Owing to their small size, light weight, and
rugged characteristics, these 3.3V HCMOS
extended temperature/COTS oscillators fulfill
tasks not previously feasible. They are used in
applications that take advantage of their
extended temperature range and high
performance. Twenty six different models
(with and without tristate) cover -55°C to
+200°C operation and provide frequency
selection from 20KHz to 100MHz. They
combine excellent long-term reliability, loading
characteristics, and superior startup
performance.
Applications
Any electronic circuit requiring 3.3V HCMOS
clocking that is exposed to very high or very low
temperatures such as oil drilling or weather
observation equipment
Electrical Specifications
Parameter
Symbol
Frequency
Range
F
Frequency
Stability
∆F/F
Operating
Temperature
T
Min
Unit
0.02
100
MHz
25
±500
ppm
See Chart
-55
Overall condition including calibration,
temperature voltage and load
variation
Max
+200
C
See Chart
First Year
After First Year
Aging
Supply
Voltage
Condition
Typ
3
1
Vcc
3.0
3.3
Output
Symmetry
Rise and Fall
Times
Input
requirement
for pin.1
ppm
ppm/yr
3.6
V
20
Supply
Current
Note
mA
All units, full range
Loads 3 TLL loads, or 10 LSTTL loads, or 15pF CMOS
TTL and LSTTL @ 1.4V
CMOS, @ 50% VDD
TTL and LSTTL from 0.4 to 2.4V
CMOS, 15 pF, from 0.4 to (VDD -0.4) V
CMOS, 30 pF, from 0.4 to (VDD -0.4) V
Output enable Output disable (Tristate)
40/60
40/60
%
8
8
10
ns
pin 1 may float or 2.8V min
pin 1 requires 0.4V max
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 www.valpeyfisher.com RevE0910
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