SM55T Series 3.3 V
CMOS Clock Oscillators
September 2017
Pletronics SM55 Series is a quartz crystal 0.8 to 160 MHz
controlled precision square wave generator with a 3.2 x 5 mm LCC Ceramic Package
CMOS output. Enable/Disable Function
The package is designed for high density surface Disable function includes low standby power
mount designs. mode
rd
This is a low cost mass produced oscillator. Fundamental or 3 Overtone Crystals used
Tape and Reel or cut tape packaging is available. Low Jitter
Pletronics Inc. certifies this device is in accordance with the
RoHS 6/6 (2011/65/EC) and WEEE (2002/96/EC) directives.
Pletronics Inc. guarantees the device does not contain the following:
Cadmium, Hexavalent Chromium, Lead, Mercury, PBBs, PBDEs
W eight of the Device: 0.064 grams
Moisture Sensitivity Level: 1 As defined in J-STD-020C
Second Level Interconnect code: e4
Absolute Maximum Ratings:
Parameter Unit
V Supply Voltage -0.5V to +7.0V
CC
Vi Input Voltage -0.5V to V + 0.5V
CC
Vo Output Voltage -0.5V to V + 0.5V
CC
Io Output Current +25 mA to -25 mA
Thermal Characteristics
o
The maximum die or junction temperature is 155 C
o
The thermal resistance junction to board is 30 to 50 C/W att depending on the solder pads, ground plane
and construction of the PCB.
Product information is current as of publication date. The product conforms Copyright 2017 Pletronics
Inc.
to specifications per the terms of the Pletronics standard warranty. Production
processsing does not necessarily include testing of all parameters. SM55T Series 3.3 V
CMOS Clock Oscillators
September 2017
Part Number:
SM55 45 T E V - 75. 0M - XX
Packaging code or blank
T250 = 250 per Tape and Reel
T500 = 500 per Tape and Reel
T1K = 1000 per Tape and Reel
Frequency in MHz
Supply Voltage V
CC
V = 3.3V +_ 10%
Optional Enhanced OTR
o
Blank = Temp. range -10 to +70 C
o
C = Temp. range -20 to +70 C
o
E = Temp. range -40 to +85 C
Series Model
Frequency Stability
45 = +_ 50 ppm
44 = _+ 25 ppm
20 = _+ 20 ppm
Series Model
Part Marking and Legend:
PLE SM55 5xYW W xx P fff.f M
P ff.fff M P ff.fff M P5xYWWx
ff.fff M ff .ff f M C YMDxx
C YMDxx C YYWWxx C ff.fff M
C YMDxx C PLExx
P or PLE = Pletronics
ff.fff M or ff.ff M = Frequency in MHz
YYW W or YW W or YMD = Date of Manufacture (year and week, or year-month-day)
All other marking is internal factory codes
Specifications such as frequency stability, supply voltage and operating temperature range, etc. are
not identified from the marking. External packaging labels and packing list will correctly identify the
ordered Pletronics part number.
Codes for Date Code YMD
Code Code
45678 A B CD E F G H J K LM
Year Month
20142015201620172018 JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC
Code 1 2 3 4 5 6 7 8 9 A B C D EF G
Day 12345678910111213141516
Code HJKLMNPRTUVWXYZ
Day171819202122232425262728293031
www.pletronics.com 425-776-1880 2