SM44T Series 1.8 V

CMOS Clock Oscillators

September 2008

www.pletronics.com

425-776-1880

2

Part Number:

SM44

45

T

E

X

-XX

Part Marking:

Packaging code or blank

PFF.FFF

C YMDxx

Frequency in MHZ

Supply Voltage V

CC

_ 10%

Temperature Range

Blank = Temp. range -10 to +70

Series Model

Frequency Stability

_ 50 ppm

_ 25 ppm

_ 20 ppm

Series Model

Marking Legend:

P

= Pletronics

FF.FFF

= Frequency in MHZ

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

6

7

8

9

0

1

2

Year

2006

2007

2008

2009

2010

2011

2012

Code

A

B

C

D

E

F

G

H

J

K

L

M

Month

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

Code

123456789

A

B

C

Day

123456789

10

11

12

Code

D

E

F

G

H

J

K

L

M

N

P

R

Day

13

14

15

16

17

18

19

20

21

22

23

24

Code

T

U

V

W

X

Y

Z

Day

25

26

27

28

29

30

31