LOW PROFILE MICROPROCESSOR CRYSTALS
FEATURES
EXCELLENT CLOCK SIGNAL GENERATOR FOR CPU’s
3.5 mm MAXIMUM HEIGHT
AVAILABLE IN EXTENDED TEMPERATURE RANGE
SAME PIN LAYOUT AS HC-49/U
SPECIFICATIONS
FREQUENCY RANGE
FUNDAMENTAL
MODE OF OSCILLATION
THIRD OVERTONE
FREQUENCY TOLERANCE AT 25°C
FREQUENCY STABILITY OVER TEMPERATURE RANGE
24.576 MHz TO 70.00 MHz
±30 PPM TYPICAL
±50 PPM MAXIMUM
±50 PPM TYPICAL
±100 PPM MAXIMUM
-20° C TO +70° C STANDARD
OPERATING TEMPERATURE RANGE
-40° C TO +85° C EXTENDED
STORAGE TEMPERATURE RANGE
AGING
LOAD CAPACITANCE
EQUIVALENT SERIES RESISTANCE (ESR)
DRIVE LEVEL
CRYSTAL CUT
-55° C TO +125° C
±5 PPM PER YEAR MAXIMUM
10 pF TO 32 pF OR SERIES
SEE TABLE
0.1 mW TYPICAL
AT STRIP
3.20 MHz TO 70.00 MHz
3.20 MHz TO 40.320 MHz
SERIES AS
HC-49/S
SMD VERSION IS SHOWN ON PAGE 20
TYPICAL FREQUENCIES AND ESR CHARACTERISTICS
FREQUENCY ESR MAX
FREQUENCY ESR MAX
FREQUENCY ESR MAX
(MHz)
(OHM) MODE
(MHz)
(OHM) MODE
(MHz)
(OHM)
3.579545
3.6864
4.00
4.032
4.096
4.194304
4.433619
4.9152
5.0688
6.00
6.144
6.176
7.15909
7.3728
7.680
8.00
200
200
150
150
150
150
150
150
120
100
100
100
80
80
80
80
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
8.064
8.192
8.6436
9.60
9.8304
10.00
10.24
10.244
10.245
11.00
11.0592
11.2896
12.00
12.288
12.80
14.31818
80
80
80
60
60
60
60
60
60
60
60
60
60
60
60
60
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
14.7456
16.00
16.000312
16.384
19.6608
20.00
24.00
24.576
27.00
28.63636
29.00
32.00
32.768
36.00
40.00
40.320
50
50
50
50
50
50
50
50/80
50/80
50/80
50/80
50/80
50/80
50/80
50/80
50/100
MODE
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND/3OT
FUND/3OT
FUND/3OT
FUND/3OT
FUND/3OT
FUND/3OT
FUND/3OT
FUND/3OT
FUND/3OT
FREQUENCY ESR MAX
(MHz)
(OHM) MODE
47.92
48.00
50.688
52.416
56.448
60
70.00
80
80
80
80
80
80
80
3OT
3OT
3OT
3OT
3OT
3OT
3OT
OTHER FREQUENCIES
ARE AVAILABLE
PART NUMBERING SYSTEM
HOLDER TYPE
-
AS
HC-49/S
IN MHz
FREQUENCY
-
LOAD CAPACITANCE
10 TO 32pF FOR PARALLEL
S FOR SERIES
HEIGHT
-
STD†
H3
H28
3.5 mm
-
3.0 mm (CUSTOM)
2.8 mm (CUSTOM)
-
FUND
3OT
MODE
FUNDAMENTAL†
THIRD OVERTONE
-
EXTENDED
TEMPERATURE
EXT
MECHANICAL OPTIONS
THREE PIN BASE
3PIN
-
SPACER
SP
TAPE AND REEL
T
EXAMPLE: AS-16.000-20-H3
AS-32.000-18-3OT-SP-EXT-T
† NO OPTION CODE NEEDED WHEN “STD” OR FUNDAMENTAL IS SPECIFIED.
TAPE AND REEL QUANTITY IS 1K PIECES.
Raltron Electronics Corporation 10651 NW 19th St. Miami, Florida 33172 U.S.A.
Tel: 305-593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: http://www.raltron.com
LOW PROFILE MICROPROCESSOR CRYSTALS
OUTLINE DRAWINGS
SERIES AS
HC-49/S
H
(See table below)
H
(See table below)
5.00 MAX
.197 MAX
11.98 MIN
.472 MIN
0.43 DIA
.017 DIA
4.88
.192
2.44
.096
11.35 MAX
.447 MAX
HEIGHT (MAXIMUM)
STD
H3
H28
3.5 mm/.138 in
3.0 mm/.126 in
2.8 mm/.110 in
10.3 MAX
.406 MAX
10.49 MAX
.413 MAX
0.43 DIA
.017 DIA
4.88
.192
11.35 MAX
.447 MAX
HEIGHT (MAXIMUM)
STD
H3
H28
3.5 mm/.138 in
3.0 mm/.126 in
2.8 mm/.110 in
TYPE AS (HC-49/S)
5.0 MAX
.197 MAX
11.99 MIN
.472 MIN
TYPE AS-3PIN (HC-49/S CENTER GROUND PIN)
OPTION: 3-PIN
mm
inch
Scale none Dimension in
3 X 0.46 DIA
3 X .018 DIA
4.88
.192
2.44
.192
4.57
10.66
.420
0.5 MAX
PLASTIC SPACER
OPTION: SP
Raltron Electronics Corporation 10651 NW 19th St. Miami, Florida 33172 U.S.A.
Tel: 305-593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: http://www.raltron.com
.02 MAX
.180
嵌入式系统
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