
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 www.valpeyfisher.com RevC0309
1
Extended Temperature/COTS
XO, 3.3V
20KHz to 100MHz
Parameter Symbol Condition Min Typ Max Unit Note
Frequency
Range F 0.02 100 MHz
Frequency
Stability ∆F/F
Overall condition including calibration,
temperature voltage and load
variation
±25 ±500 ppm See Chart
Operating
Temperature T -55° +200° °C See Chart
Aging First Year
After First Year 3
1 ppm
ppm/yr
Supply
Voltage Vcc 3.0 3.3 3.6 V
Supply
Current 20 mA
Output All units, full range
Loads 3 TLL loads, or 10 LSTTL loads, or 15pF CMOS
Symmetry TTL and LSTTL @ 1.4V
CMOS, @ 50% VDD 40/60
40/60 %
Rise and Fall
Times
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
8
8
10
ns
Features
¾ Tiny 5X7 SMD form factor
¾ Hermetically sealed for rugged environmental conditions
¾ Extremely wide operating temperature range
accommodates harsh environments
¾ All crystals are processed in-house with tight angle
control to assure best frequency-temperature
characteristics
¾ All units are vacuum baked before sealing at 175°C for
16 hours to eliminate moisture traces and pre-age units
for superior stability
¾ Tristate feature optional
¾ Equivalent 5V parts are available in series T1254
Applications
¾ 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
RoHS Status
Electrical Specifications
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.