SM77G Series 2.5 V
CMOS Clock Oscillators
Feb 2008
PART NUMBER:
SM77 45
G
E
W - 50.0M
-XX
Part Marking:
Packaging code or blank
PLE SM77
FF.FFF M
C YMDXX
T250 = 250 per Tape and Reel
T500 = 500 per Tape and Reel
T1K = 1000 per Tape and Reel
or
Frequency in MHz
PLE SM77
FF.FFF M
C YYWWXX
Supply Voltage VCC
W = 2.5V +_ 10%
Optional Enhanced OTR
Blank = Temp. range -10 to +70oC
E = Temp. range -40 to +85oC
or
7XYWWXX
FF.FFF M
C PLE XXX
Series Model
Frequency Stability
45 = +_ 50 ppm
44 = +_ 25 ppm
20 = +_ 20 ppm
Series Model
Marking Legend:
PLE = Pletronics
FF.FFF M = Frequency in MHz
YYWW or YWW 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
6
7
8
9
0
1
2
2006
2007
2008
2009
2010
2011
2012
Year
Code
Month
A
B
C
D
E
F
G
H
J
K
L
M
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
Code
1
1
2
2
3
3
F
4
5
6
6
7
8
8
9
9
A
10
N
B
11
P
C
12
R
4
5
H
7
K
Day
Code
Day
D
E
G
16
W
28
J
L
M
21
13
T
14
U
15
V
17
X
18
Y
19
Z
20
22
23
24
Code
Day
25
26
27
29
30
31
www.pletronics.com
425-776-1880
2
PLETRONICS [ PLETRONICS, INC. ]
