Moisture Sensitivity Level (MSL) – This product is Hermetically Sealed
and not Moisture Sensitive - MSL = N/A: Not Applicable
Pb
RoHS/RoHS II
11.5 x 5.0 x 3.5 mm
| | | | | | | | | | | | | | |
FEATURES:
• High reliability & Low Cost
• Tight stability & extended temperature
•
Proven resistance welded metal package
APPLICATIONS:
• Home electronics
• Computers, modems, and communications
• High-precision TCXO and clock applications
• Microprocessors
STANDARD SPECIFICATIONS:
Parameters
Frequency Range
Minimum
3.579545
3.579545
Operation mode
24.01
24.01
Operating Temperature
Storage Temperature
Frequency Tolerance
Frequency Stability over the Operating
Temperature ( ref. to +25°C)
Equivalent series resistance (R1)
Shunt capacitance (C0)
Load capacitance (CL)
Drive Level
Aging @ 25°C per
year
Insulation Resistance
Drive Level Dependency (DLD,
Minimum 7 points tested: from 1µW to
500µW)
0
-55
-50
-50
See table 1 below
7
18
100
500
±10
25% of Max
ESR
Max ESR in
Table 1
1000
±5
Typical
Maximum
70
24.0
70.00
50.00
+70
+125
+50
+50
ºC
ºC
ppm
ppm
Ω
pF
pF
µW
ppm
MΩ
ppm
Ω
Ω
MHz
Fundamental AT-
cut (Standard)
3
rd
OT AT-cut
(Standard)
Fundamental AT-
cut or BT-cut (See
options)
See options
See options
See options
Units
Notes
See options
@ 100Vdc ± 15V
Δfrequency
(Max –
Min)
ΔESR
(Max – Min)
Max ESR over DLD
range
Table 1
Frequency (MHz)
3.579 - 4.999 (Fund.)
5.000 - 5.999 (Fund.)
6.000 - 7.999 (Fund.)
8.000 - 8.999 (Fund.)
9.000 - 9.999 (Fund.)
10.000 - 15.999 (Fund.)
16.000 - 50.000 (Fund.)
24.01 - 31.999 (3rd O/T)
32.000 - 70.00 (3rd O/T)
ESR(Ω) max.
180
120
100
80
60
50
40
100
80
ABRACON IS
ISO 9001 / QS 9000
ISO 9001:2008
CERTIFIED
Revised: 01.08.13
30332 Esperanza, Rancho Santa Margarita, California 92688
tel 949-546-8000
|
fax 949-546-8001
| www.abracon.com
Visit www.abracon.com for Terms & Conditions of Sale
HC/49US (AT49) MICROPROCESSOR CRYSTAL
ABL Series
(Left blank if standard)
Pb
RoHS/RoHS II
11.5 x 5.0 x 3.5 mm
| | | | | | | | | | | | | | |
OPTIONS AND PART IDENTIFICATION:
ABL -
Frequency in MHz
Please specify the frequency
in xx.xxxxMHz.
e.g. 14.3181MHz
Load Capacitance (pF)
Please specify CL
(Minimum 10pF) in pF or
S for series
Custom ESR if other
than standard
R□
□:
Specify a value in
Ω
(e.g.: R40)
MHz -
-
-
-
-
-
Packaging
Blank: Bulk
T: Tape & Reel
TRAY: Tray
Value Added
I
Insulator Tab
L2
Middle 3rd lead
QXX
Trimmed leads
Q15
for 0.15" length
Oscillation Mode
F: Fund. AT>24MHz
FB: Fund. BT>24MHz
Operating Temp.
A: -10°C ~ +60°C
B: -20°C ~ +70°C
C: -30°C ~ +70°C
N: -30°C ~ +85°C
D: -40°C ~ +85°C
J*: -40°C ~ +105°C
K*: -40°C ~ +125°C
L*: -55°C ~ +125°C
Freq. Tolerance
H5: ± 5 ppm
1: ± 10 ppm
7: ± 15 ppm
2: ± 20 ppm
3: ± 25 ppm
4: ± 30 ppm
Freq. Stability
U**: ± 10 ppm
G: ± 15 ppm
X: ± 20 ppm
W: ± 25 ppm
Y: ± 30 ppm
H: ± 35 ppm
Q: ± 100 ppm
R: ± 150 ppm
NOTE:
* Frequency stability ±50ppm, ±100ppm, ±150ppm only. Contact ABRACON for tighter frequency stability.
** -10 to +60C only.
ABRACON IS
ISO 9001 / QS 9000
ISO 9001:2008
CERTIFIED
Revised: 01.08.13
30332 Esperanza, Rancho Santa Margarita, California 92688
tel 949-546-8000
|
fax 949-546-8001
| www.abracon.com
Visit www.abracon.com for Terms & Conditions of Sale
HC/49US (AT49) MICROPROCESSOR CRYSTAL
ABL Series
OUTLINE DRAWING:
L
5.5mm Min
20.0 ± 0.5mm
Packaging
Bulk
Tape & Reel
Pb
RoHS/RoHS II
11.5 x 5.0 x 3.5 mm
| | | | | | | | | | | | | | |
ABL SERIES HC49/US (AT49)
MICROPROCESSOR CRYSTAL
Date of Issue: Jan. 2
nd
, 2013
Page (8) of (10)
8.0
Packaging:
T= Tape and reel (1,000pcs/reel)
L
11.5 x 5.0 x 3.5 mm
Abracon Drawing # 450667
Revision #: T
Dimensions: inch (mm)
TAPE & REEL:
T= Tape and reel (1,000pcs/reel)
Dimensions: mm
ATTENTION:
Abracon Corporation’s products are COTS – Commercial-Off-The-Shelf products; suitable for Commercial, Industrial and, where designated, Automotive Applica-
tions. Abracon’s products are not specifically designed for Military, Aviation, Aerospace, Life-dependant Medical applications or any application requiring high reliability where
component failure could result in loss of life and/or property. For applications requiring high reliability and/or presenting an extreme operating environment, written consent and
authorization from Abracon Corporation is required. Please contact Abracon Corporation for more information.
ABRACON IS
ISO 9001 / QS 9000
ISO 9001:2008
CERTIFIED
Revised: 01.08.13
30332 Esperanza, Rancho Santa Margarita, California 92688
tel 949-546-8000
|
fax 949-546-8001
| www.abracon.com
Visit www.abracon.com for Terms & Conditions of Sale
本帖最后由 15588608145 于 2018-8-5 01:27 编辑
from machine import Pin
from time import sleep_ms
def led_toggle(t):
LED = Pin(t, Pin.OUT)
if LED.value() == 1:
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