QT581 AND QT588 SERIES
Q-TECH
CORPORATION
ULTRA-LOW CURRENT, HIGH-TEMPERATURE REAL TIME CLOCK OSCILLATORS
2.5Vdc and 3.3Vdc - 32.768kHz
Description
Q-Tech’s high temperature real time clock oscillators
consist of a source clock square wave generator and a
miniature round or strip quartz crystal built in a low
profile hermetically ceramic package with gold plated
contact terminals.
The device provides a precision clock for timekeeping for
most down-hole electronic applications by using AT or IT
cut quartz crystals. The design and construction of the
QT581 and QT588 series will make accuracy-
improvement techniques over the traditional RTC with a
32.768kHz quartz tuning-fork crystal, which due to its
parabolic characteristics that do not provide much
accuracy over a wide temperature range. As a result, there
is a gaining or losing up to seconds per day and tens of
minutes per year.
The device is built using high temperature materials and
processes suitable for long life and highest reliability.
Features
•
•
•
•
•
•
•
•
•
•
•
•
•
Made in the USA
ECCN: EAR99
+3.3Vdc and +2.5Vdc operation
32.768kHz square wave CMOS output
Wide operating temperature -55°C to +200°C
Tight frequency stability (±40ppm to ±250ppm)
Ultra-low current suitable for battery operation
Excellent AT and IT cut crystal temperature characteristics
Tristate output standard
Fundamental design
Fast start-up time
Hermetically sealed package
100% testing over temperature
Applications
• Real-time clock driver
• 32.768kHz output crystal modules
Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: 310-836-7900 - Fax: 310-836-2157 - www.q-te ch.com
QPDS-0007 (Rev A, January 2013) (ECO #10336)
1 of 7
QT581 AND QT588 SERIES
Q-TECH
CORPORATION
ULTRA-LOW CURRENT, HIGH-TEMPERATURE REAL TIME CLOCK OSCILLATORS
2.5Vdc and 3.3Vdc - 32.768kHz
Electrical Characteristics
Output frequency range (Fo)
Supply voltage (Vdd)
Maximum Applied Voltage
(Vdd max.)
Parameters
+3.3Vdc
+3.3Vdc ± 10%
32.768kHz
+5Vdc
+2.5Vdc
+2.5Vdc ± 10%
Frequency stability (∆F/∆T)
Storage temperature (Tsto)
Operating temperature (Topr)
0.42 mA typ., 0.7mA max.
See Ordering Information
-55ºC to + 125ºC
See Ordering Information
0.24 mA typ., 0.5mA max.
Operating supply current
(Idd) (No Load)
Symmetry
(50% of ouput waveform)
Rise and Fall times
(Tr, Tf betweeen 10% and 90% of output waveform)
Output Load
Start-up time (Tstup)
50/50% typ., 45/55% max.
0.2µs typ., 1µs max.
10ms max.
15pF
Output voltage (V ol)
oh/V
Output Current (Ioh/Iol)
0.9 x Vdd min.; 0.1 x Vdd max.
VIH ≥ 0.7Vdd: Active
VIL ≤ 0.3Vdd: High Impedance
Stand-by current: 10µA max.
± 2mA min.
Enable/Disable function Pin 1
Aging
± 5ppm max. first year / ± 2ppm max. per year thereafter
Q-TECH Corporation
-
10150 W. Jefferson Boulevard, Culver City 90232
-
Tel: 310-836-7900 - Fax: 310-836-2157
-
www.q-te c h.co m
QPDS-0007 (Rev A, January 2013) (ECO #10336)
2 of 7
QT581 AND QT588 SERIES
Q-TECH
CORPORATION
Package Outline and Pin Connections -
Dimensions are in inches (mm)
QT581
0.276 ± .006
(7.0 ± 0.2)
4
3
ULTRA-LOW CURRENT, HIGH-TEMPERATURE REAL TIME CLOCK OSCILLATORS
2.5Vdc and 3.3Vdc - 32.768kHz
QT582
0.276 ± .006
(7.0 ± 0.2)
4
3
QT583
0.276 ± .006
(7.0 ± 0.2)
(4X)
R 0.200
3
(R .008)
QT584
0.276±.006
(7.0±0.2)
4
3
(4X)
R 0.200
(R .008)
(4X)
R 0.20
(R .008)
(4X)
R 0.20
(R .008)
4
P/N
FREQ.
D/C S/N
1
0.200 ± .008
(5.08 ± 0.2)
2
0.197 ± .006
(5.00 ± 0.15)
P/N
FREQ.
D/C S/N
1
0.200 ± .008
(5.08 ± 0.2)
2
0.197 ± .006
(5.00 ± 0.15)
P/N
FREQ.
D/C S/N
1
0.200 ± .008
(5.08 ± 0.2)
2
0.197 ± .006
(5.00 ± 0.15)
P/N
FREQ.
D/C S/N
1
0.2±.008
(5.08±0.2)
2
0.197±.006
(5.00±0.15)
0.100
max.
(2.54)
0.028
(0.72)
0.040
(1.02)
0.008
(0.20)
0.100
max.
(2.54)
0.028
(0.72)
0.060 ± .003
(1.52 ± 0.08)
0.008
(0.20)
0.200±.005
(5.80±0.13)
0.008
(0.20)
0.100
max.
(2.54)
0.028
(0.72)
0.060 ± .003
(1.52 ± 0.08)
0.079
(2.0)
max.
0.018±.003
(.46±0.08)
0.018±.003
(.46±0.08)
0.018±.003
(.46±0.08)
0.216
(5.49)
0.216
(5.49)
1
4
2
3
.102
(2.6)
A’
0.200 ± .005
0.008 ± .001
(.20 ± 0.03)
0.205 ± .010
(5.20 ± 0.25)
(5.080 ± 0.13)
A’
3º to 5º typ.
0.008
(.203)
0.008
(.203)
0.055 ± .003
(1.40 ± 0.08)
detail A’
3º to 5º typ.
0.055± .003
(1.40 ± 0.08)
0.055
(1.4)
0.040
(1.0)
detail A’
QT588
0.350±0.005
(8.89±0.13)
4
3
QT589
0.350±0.005
(8.89±0.13)
4
3
QT590
.350 ± .005
(8.89 ± .13)
4
3
QT592
.350 ± .005
(8.89 ± .13)
4
3
Q-TECH
P/N
FREQ.
D/C S/N
0.290±0.005
(7.37±0.13)
Q-TECH
P/N
FREQ.
D/C S/N
0.290±0.005
(7.37±0.13)
Q-TECH
P/N
FREQ.
D/C S/N
.290 ± .005
(7.37 ± .13)
Q-TECH
P/N
FREQ.
D/C S/N
.290 ± .005
(7.37 ± .13)
1
2
0.100±0.005
(2.54±0.13)
1
2
0.100±.005
(2.54±0.13)
1
2
.100 ± .005
(2.54 ± .13)
1
2
.100 ± .005
(2.54 ± .13)
.200 ± .005
0.200±0.005
(5.08±0.13)
0.200±.005
(5.080±0.13)
.200 ± .005
(5.08 ± .13)
(5.08 ± .13)
.190 MAX.
0.170 Max.
(4.32)
0.018±0.003
(0.457±0.076)
0.130
(3.30)
MAX.
.190 MAX.
(4.826 MAX.)
.048 ± .002
4X
(4.826 MAX.)
0.050
(1.27)
0.018±.003
.048 ± .002
(1.22 ± .051)
.018 ± .003
(.457 ± .076)
.315 max.
(8.00 max.)
4X
(1.22 ± .051)
.018 ± .003
4X
4X
(.457 ± .076)
.315 max.
(8.00 max.)
0.315 max.
(8.00 max.)
(.457±0.076)
0.040 Max.
(1.02)
0.240±0.005
(6.10±0.13)
0.315 max.
(8.00 max.)
.008
(.203)
.110 ± .005
(2.794 ± .13)
.055 ± .005
(1.396 ± .13)
• Package material: 91% AL2O3
• Lead material: Kovar
• Lead finish: Gold Plated: 50μ ~ 80μ inches
Nickel Underplate: 100μ ~ 250μ inches
• Weight: 0.6g typ., 3.0g max.
Package Information
0.200±.005
0.008
(.203)
(5.080±0.13)
.400 TYP.
(10.16 ± .13)
.008
(.203)
Pin No.
1
2
3
4
TRISTA
TE
GND/CASE
OUTPUT
VDD
Function
Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: 310-836-7900 - Fax: 310-836-2157 - www.q-te ch.com
QPDS-0007 (Rev A, January 2013) (ECO #10336)
3 of 7
QT581 AND QT588 SERIES
Q-TECH
CORPORATION
ULTRA-LOW CURRENT, HIGH-TEMPERATURE REAL TIME CLOCK OSCILLATORS
2.5Vdc and 3.3Vdc - 32.768kHz
Ordering Information
Q T 5 81 L
Solder Dip Option:
T = Standard
S = Solder Dip
(*)
G = Solder Dip
(*)
QT 581 L D7 M -32. 76 8kHz
(Sample part number)
D 7 M - 32. 76 8kHz
High Temperature
Real Time Clock Oscillator
Package:
(See page 3)
Screening Option:
Blank = No Screening
M = Per MIL-PRF-55310, Level B
Operating Temperature Option:
A =
0ºC to + 150ºC
B =
0ºC to + 175ºC
C =
0ºC to + 185ºC
D =
0ºC to + 200ºC
E = -20ºC to + 150ºC
F = -20ºC to + 175ºC
G = -20ºC to + 185ºC
H = -20ºC to + 200ºC
I = -40ºC to + 150ºC
J = -40ºC to + 175ºC
K = -40ºC to + 185ºC
L = -40ºC to + 200ºC
M = -55ºC to + 150ºC
N = -55ºC to + 175ºC
O = -55ºC to + 185ºC
P = -55ºC to + 200ºC
Frequency Stability Option:
1 = ± 40ppm
2 = ± 50ppm
3 = ± 75ppm
4 = ± 100ppm
5 = ± 150ppm
6 = ± 175ppm
7 = ± 200ppm
8 = ± 250ppm
Output Frequency
Logic & Supply Voltage:
L = LVHCMOS +3.3V
N = LVHCMOS +2.5V
Not every combination of Operating Temperature
range and Frequency Stability will be available.
See
TABLE I
and
TABLE II
below:
TABLE I (QT581 SERIES)
Available Combinations of
Operating Temperature Range vs. Frequency Stability
1
2
3
4
5
6
7
8
✓
✓
✓
✓
A
✓
✓
✓
B
✓
✓
C
✓
✓
D
✓
✓
E
✓
✓
F
✓
✓
G
✓
✓
H
✓
✓
I
✓
✓
J
✓
✓
K
✓
✓
L
✓
✓
M
✓
✓
N
✓
✓
O
✓
✓
P
For Non-Standard requirements, contact Q-Tech Corporation at Sales@Q-Tech.com
TABLE II (QT588 SERIES)
Available Combinations of
Operating Temperature Range vs. Frequency Stability
1
2
3
4
5
6
7
8
✓
✓
✓
✓
✓
✓
✓
✓
A
✓
✓
✓
✓
✓
✓
✓
✓
B
✓
✓
✓
✓
✓
✓
C
✓
✓
✓
✓
✓
✓
D
✓
✓
✓
✓
✓
✓
E
✓
✓
✓
✓
✓
✓
F
✓
✓
✓
✓
✓
✓
G
✓
✓
✓
✓
✓
✓
H
✓
✓
✓
✓
✓
I
✓
✓
✓
✓
✓
J
✓
✓
✓
✓
✓
K
✓
✓
✓
✓
✓
L
✓
✓
✓
✓
✓
M
✓
✓
✓
✓
✓
N
✓
✓
✓
✓
✓
O
✓
✓
✓
✓
✓
P
• Standard packaging in black foam
• Standard packaging in anti-static plastic tube (60 pcs/tube)
• Tape and Reel (800 pcs/reel) is available for an additional
charge.
Packaging Options
(*) Hot Solder Dip options for an additional cost:
S = Sn60/Pb40 per MIL-PRF 55310
G = Lead free Alloy SAC305 (96.5% Sn, 3% Ag, 0.5% Cu)
• P. I. N. D. test (MIL-STD 883, Method 2020, Condition B)
Other Options Available For An Additional Charge
Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: 310-836-7900 - Fax: 310-836-2157 - www.q-t ech.c om
QPDS-0007 (Rev A, January 2013) (ECO #10336)
Specifications subject to change without prior notice.
4 of 7
QT581 AND QT588 SERIES
Q-TECH
Reflow Profile
CORPORATION
ULTRA-LOW CURRENT, HIGH-TEMPERATURE REAL TIME CLOCK OSCILLATORS
2.5Vdc and 3.3Vdc - 32.768kHz
9.271
TYPICAL REFLOW PROFILE FOR Sn-Pb ASSEMBLY
TEMP(*C)
Ramp up (3ºC/s Max)
250
225
200
175
150
240º
4.699±0.1
Ramp down (6ºC/s Max)
225º min.
240º max.
60s min.
150s max.
60s min.
120s max.
7.747±0.1
16±0.1
Ø1.5
Ø13.0±0.5
2.5
2.0
26
125
100
75
50
25
0
0
20
40
60
Ø178±1
or
Ø330±1
60s min.
120s max.
80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 420
Time (s)
Dimensions are in mm. Tape is compliant to EIA-481-A.
120°
Reel size vs. quantity:
178
330
Environmental Specifications
Reel size (Diameter in mm)
Qty per reel (pcs)
150
800
Q-Tech Standard Screening/QCI (MIL-PRF55310) is available for all of our QT581 and QT588 series. Q-Tech can also customize
screening and test procedures to meet your specific requirements. The QT581 and QT588 series are designed and processed to exceed
the following test conditions:
Temperature cycling
Constant acceleration
Seal: Fine and Gross Leak
Burn-in
Aging
Vibration sinusoidal
Shock, non operating
Thermal shock, non operating
Ambient pressure, non operating
Resistance to solder heat
Moisture resistance
Terminal strength
Resistance to solvents
Solderability
ESD Classification
Moisture Sensitivity Level
Environmental Test
Test Conditions
MIL-STD-883, Method 1010, Cond. B
MIL-STD-883, Method 2001, Cond. A, Y1
MIL-STD-883, Method 1014, Cond. A and C
160 hours, 125°C with load
30 days, 70°C, ±1.5ppm max
MIL-STD-202, Method 204, Cond. D
MIL-STD-202, Method 213, Cond. I (See Note 1)
MIL-STD-202, Method 107, Cond. B
MIL-STD-202, 105, Cond. C, 5 minutes dwell time minimum
MIL-STD-202, Method 210, Cond. B
MIL-STD-202, Method 106
MIL-STD-202, Method 211, Cond. C
MIL-STD-202, Method 215
MIL-STD-202, Method 208
MIL-STD-883, Method 3015, Class 1 HBM 0 to 1,999V
J-STD-020, MSL=1
Note 1:
Additional shock results successfully passed on 16MHz, 20MHz, 24MHz, 40MHz, and 80MHz
• Shock 850g peak, half-sine, 1 ms duration (MIL-STD-202, Method 213, Cond. D modified)
• Shock 1,500g peak, half-sine, 0.5ms duration (MIL-STD-883, Method 2002, Cond. B)
• Shock 36,000g peak, half-sine, 0.12 ms duration
Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: 310-836-7900 - Fax: 310-836-2157 - www.q-te ch.com
QPDS-0007 (Rev A, January 2013) (ECO #10336)
Please contact Q-Tech for higher shock requirements
5 of 7
24.0±0.3
The five transition periods for the typical reflow process are:
• Preheat
• Flux activation
• Thermal equalization
• Reflow
• Cool down
Embossed Tape and Reel Information For QT588
FEEDING (PULL) DIRECTION
2.0±0.1 4.0±0.1
1.75±0.1
0.3±.005
5°Max
Ø1.5
11.5
P/N
FREQUENCY
D/C S/N
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