LMC555H/883 [TI]
PULSE; RECTANGULAR, 3MHz, TIMER, BCY8, METAL CAN, TO-99, 8 PIN;
| 型号： | LMC555H/883 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | PULSE; RECTANGULAR, 3MHz, TIMER, BCY8, METAL CAN, TO-99, 8 PIN |
| 文件： | 总19页 (文件大小：949K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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information and details on our current products and services.
May 2006
LMC555
CMOS Timer
General Description
Features
n Less than 1 mW typical power dissipation at 5V supply
n 3 MHz astable frequency capability
The LMC555 is a CMOS version of the industry standard
555 series general purpose timers. In addition to the stan-
dard package (SOIC, MSOP, and MDIP) the LMC555 is also
available in a chip sized package (8 Bump micro SMD) using
National’s micro SMD package technology. The LMC555
offers the same capability of generating accurate time delays
and frequencies as the LM555 but with much lower power
dissipation and supply current spikes. When operated as a
one-shot, the time delay is precisely controlled by a single
external resistor and capacitor. In the stable mode the oscil-
lation frequency and duty cycle are accurately set by two
external resistors and one capacitor. The use of National
n 1.5V supply operating voltage guaranteed
n Output fully compatible with TTL and CMOS logic at 5V
supply
n Tested to −10 mA, +50 mA output current levels
n Reduced supply current spikes during output transitions
n Extremely low reset, trigger, and threshold currents
n Excellent temperature stability
n Pin-for-pin compatible with 555 series of timers
n Available in 8-pin MSOP Package and 8-Bump micro
SMD package
™
Semiconductor’s LMCMOS process extends both the fre-
quency range and low supply capability.
Pulse Width Modulator
00866915
00866920
Ordering Information
Package
Temperature Range
Industrial
Package Marking
Transport Media
NSC Drawing
−40˚C to +85˚C
LMC555CM
8-Pin Small Outline (SO)
Rails
LMC555CM
M08A
LMC555CMX
LMC555CMM
LMC555CMMX
LMC555CN
2.5k Units Tape and Reel
1k Units Tape and Reel
3.5k Units Tape and Reel
Rails
8-Pin Mini Small Outline
(MSOP)
ZC5
LMC555CN
F1
MUA08A
N08E
8-Pin Molded Dip (MDIP)
8-Bump micro SMD
LMC555CBP
LMC555CBPX
LMC555CTP
LMC555CTPX
250 Units Tape and Reel
3k Units Tape and Reel
250 Units Tape and Reel
3k Units Tape and Reel
BPA08EFB
8-Bump micro SMD
NOPB
F02
TPA08EFA
Note: See Mil-datasheet MNLMC555-X for specifications on the military device LMC555J/883.
™
LMCMOS is a trademark of National Semiconductor Corp.
© 2006 National Semiconductor Corporation
DS008669
www.national.com
Connection Diagrams
8-Pin SOIC, MSOP, MDIP
00866901
Top View
8-Bump micro SMD
00866909
Top View
(Bump Side Down)
www.national.com
2
Absolute Maximum Ratings (Notes 2, 3)
Thermal Resistance (θJA) (Note 2)
SO, 8-Pin Small
Outline
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
169˚C/W
MSOP, 8-Pin
Mini Small
Supply Voltage, V+
15V
Outline
225˚C/W
111˚C/W
220˚C/W
Input Voltages, VTRIG, VRES, VCTRL
VTHRESH
,
−0.3V to VS + 0.3V
15V
MDIP, 8-Pin
Molded Dip
Output Voltages, VO, VDIS
Output Current IO, IDIS
Storage Temperature Range
Soldering Information
8-Bump micro
SMD
100 mA
−65˚C to +150˚C
Maximum
Allowable Power
MDIP Soldering (10 seconds)
260˚C
215˚C
220˚C
@
Dissipation 25˚C
SOIC, MSOP Vapor Phase (60 sec)
SOIC, MSOP Infrared (15 sec)
MDIP-8
SO-8
1126 mW
740 mW
555 mW
Note: See AN-450 “Surface Mounting Methods and Their Effect on Product
MSOP-8
8 Bump micro
SMD
Reliability” for other methods of soldering surface mount devices.
568 mW
Operating Ratings(Notes 2, 3)
Termperature
Range
−40˚C to +85˚C
Electrical Characteristics (Notes 1, 2)
Test Circuit, T = 25˚C, all switches open, RESET to VS unless otherwise noted
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Limits)
IS
Supply Current
VS = 1.5V
VS = 5V
50
100
150
1.0
3.3
8.0
75
150
250
400
1.2
3.8
8.6
150
300
0.4
0.6
2.0
µA
VS = 12V
VS = 1.5V
VS = 5V
VCTRL
Control Voltage
0.8
2.9
7.4
V
mV
V
VS = 12V
VDIS
VOL
Discharge Saturation Voltage VS = 1.5V, IDIS = 1 mA
VS = 5V, IDIS = 10 mA
150
0.2
0.3
1.0
1.25
4.7
11.3
0.5
4.0
10
Output Voltage (Low)
VS = 1.5V, IO = 1 mA
VS = 5V, IO = 8 mA
VS = 12V, IO = 50 mA
VS = 1.5V, IO = −0.25 mA
VS = 5V, IO = −2 mA
VS = 12V, IO = −10 mA
VS = 1.5V
VOH
Output Voltage
(High)
1.0
4.4
V
10.5
0.4
VTRIG
Trigger Voltage
0.6
4.3
V
pA
V
VS = 12V
3.7
ITRIG
VRES
Trigger Current
Reset Voltage
VS = 5V
VS = 1.5V (Note 4)
VS = 12V
0.4
0.4
0.7
0.75
10
1.0
1.1
IRES
ITHRESH
IDIS
Reset Current
VS = 5V
pA
pA
nA
Threshold Current
Discharge Leakage
Timing Accuracy
VS = 5V
10
VS = 12V
1.0
100
t
SW 2, 4 Closed
VS = 1.5V
0.9
1.0
1.0
1.1
1.1
1.1
0.3
1.25
1.20
1.25
ms
VS = 5V
VS = 12V
∆t/∆VS
Timing Shift with Supply
VS = 5V 1V
%/V
3
www.national.com
Electrical Characteristics (Notes 1, 2)
Test Circuit, T = 25˚C, all switches open, RESET to VS unless otherwise noted (Continued)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Limits)
ppm/˚C
∆t/∆T
Timing Shift with
Temperature
VS = 5V
75
−40˚C ≤ T ≤ +85˚C
fA
Astable Frequency
Maximum Frequency
Output Rise and
Fall Times
SW 1, 3 Closed, VS = 12V
Max. Freq. Test Circuit, VS = 5V
Max. Freq. Test Circuit
VS = 5V, CL = 10 pF
4.0
4.8
3.0
15
5.6
kHz
MHz
ns
fMAX
tR, tF
tPD
Trigger Propagation Delay
VS = 5V, Measure Delay
from Trigger to Output
100
ns
Note 1: All voltages are measured with respect to the ground pin, unless otherwise specified.
Note 2: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which
guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit
is given, however, the typical value is a good indication of device performance.
Note 3: See AN-450 for other methods of soldering surface mount devices, and also AN-1112 for micro SMD considerations.
Note 4: If the RESET pin is to be used at temperatures of −20˚C and below V is required to be 2.0V or greater.
S
Note 5: For device pinout please refer to table 1
Test Circuit (Note 5)
Maximum Frequency Test Circuit (Note 5)
00866903
00866902
TABLE 1. Package Pinout Names vs. Pin Function
Pin Function Package Pin numbers
8-Pin SO, MSOP, and MDIP
8-Bump micro SMD
GND
1
2
3
4
5
6
7
8
A3
B3
C3
C2
C1
B1
A1
A2
Trigger
Output
Reset
Control Voltage
Threshold
Discharge
V+
www.national.com
4
negative pulse to the reset terminal. The output will then
remain in the low state until a trigger pulse is again applied.
Application Information
When the reset function is not use, it is recommended that it
be connected to V+ to avoid any possibility of false triggering.
Figure 3 is a nomograph for easy determination of RC values
for various time delays.
MONOSTABLE OPERATION
In this mode of operation, the timer functions as a one-shot
(Figure 1). The external capacitor is initially held discharged
by internal circuitry. Upon application of a negative trigger
pulse of less than 1/3 VS to the Trigger terminal, the flip-flop
is set which both releases the short circuit across the capaci-
tor and drives the output high.
Note: In monstable operation, the trigger should be driven high before the
end of timing cycle.
00866911
00866904
FIGURE 3. Time Delay
FIGURE 1. Monostable (One-Shot)
The voltage across the capacitor then increases exponen-
tially for a period of tH = 1.1 RAC, which is also the time that
the output stays high, at the end of which time the voltage
equals 2/3 VS. The comparator then resets the flip-flop which
in turn discharges the capacitor and drives the output to its
low state. Figure 2 shows the waveforms generated in this
mode of operation. Since the charge and the threshold level
of the comparator are both directly proportional to supply
voltage, the timing internal is independent of supply.
ASTABLE OPERATION
If the circuit is connected as shown in Figure 4 (Trigger and
Threshold terminals connected together) it will trigger itself
and free run as a multivibrator. The external capacitor
charges through RA + RB and discharges through RB. Thus
the duty cycle may be precisely set by the ratio of these two
resistors.
00866910
V
= 5V
Top Trace: Input 5 V/Div.
CC
00866905
TIME = 0.1 ms/Div. Middle Trace: Output 5 V/Div.
R
= 9.1 kΩ
Bottom Trace: Capacitor Voltage 2 V/Div.
A
FIGURE 4. Astable (Variable Duty Cycle Oscillator)
C = 0.01 µF
In this mode of operation, the capacitor charges and dis-
charges between 1/3 VS and 2/3 VS. As in the triggered
mode, the charge and discharge times, and therefore the
frequency are independent of the supply voltage.
FIGURE 2. Monostable Waveforms
Reset overrides Trigger, which can override threshold.
Therefore the trigger pulse must be shorter than the desired
tH. The minimum pulse width for the Trigger is 20ns, and it is
400ns for the Reset. During the timing cycle when the output
is high, the further application of a trigger pulse will not effect
the circuit so long as the trigger input is returned high at least
10µs before the end of the timing interval. However the
circuit can be reset during this time by the application of a
Figure 5 shows the waveform generated in this mode of
operation.
5
www.national.com
FREQUENCY DIVIDER
Application Information (Continued)
The monostable circuit of Figure 1 can be used as a fre-
quency divider by adjusting the length of the timing cycle.
Figure 7 shows the waveforms generated in a divide by three
circuit.
00866912
V
= 5V
Top Trace: Output 5 V/Div.
CC
TIME = 20 µs/Div.
Bottom Trace: Capacitor Voltage 1 V/Div.
R
R
= 3.9 kΩ
= 9 kΩ
A
B
00866914
V
= 5V
Top Trace: Input 4 V/Div.
TIME = 20 µs/Div. Middle Trace: Output 2 V/Div.
= 9.1 kΩ Bottom Trace: Capacitor 2 V/Div.
CC
C = 0.01 µF
R
A
C = 0.01 µF
FIGURE 5. Astable Waveforms
The charge time (output high) is given by
t1 = 0.693 (RA + RB)C
FIGURE 7. Frequency Divider Waveforms
PULSE WIDTH MODULATOR
And the discharge time (output low) by:
t2 = 0.693 (RB)C
When the timer is connected in the monostable mode and
triggered with a continuous pulse train, the output pulse
width can be modulated by a signal applied to the Control
Voltage Terminal. Figure 8 shows the circuit, and in Figure 9
are some waveform examples.
Thus the total period is:
T = t1 + t2 = 0.693 (RA + RB)C
The frequency of oscillation is:
Figure 6 may be used for quick determination of these RC
Values. The duty cycle, as a fraction of total period that the
output is low, is:
00866920
FIGURE 8. Pulse Width Modulator
00866913
FIGURE 6. Free Running Frequency
www.national.com
6
Application Information (Continued)
00866916
V
= 5V
Top Trace: Modulation Input 1 V/Div.
CC
TIME = 0.1 ms/Div.
Bottom Trace: Output Voltage 2 V/Div.
00866915
V
= 5V
Top Trace: Modulation 1 V/Div.
TIME = 0.2 ms/Div. Bottom Trace: Output Voltage 2 V/Div.
= 9.1 kΩ
R
R
= 3.9 kΩ
= 3 kΩ
CC
A
B
R
C = 0.01 µF
A
C = 0.01 µF
FIGURE 11. Pulse Position Modulator Waveforms
FIGURE 9. Pulse Width Modulator Waveforms
50% DUTY CYCLE OSCILLATOR
The frequency of oscillation is
f = 1/(1.4 RCC)
PULSE POSITION MODULATOR
This application uses the timer connected for astable opera-
tion, as in Figure 10, with a modulating signal again applied
to the control voltage terminal. The pulse position varies with
the modulating signal, since the threshold voltage and hence
the time delay is varied. Figure 11 shows the waveforms
generated for a triangle wave modulation signal.
00866906
FIGURE 12. 50% Duty Cycle Oscillator
00866921
FIGURE 10. Pulse Position Modulator
micro SMD Marking Orientation
Top View
00866923
Bumps are numbered counter-clockwise
7
www.national.com
Physical Dimensions inches (millimeters) unless otherwise noted
Molded Small Outline (SO) Package (M)
NS Package Number M08A
8-Pin (0.118” Wide) Molded Mini Small Outline Package
NS Package Number MUA08A
www.national.com
8
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
Molded Dual-in-line Package (N)
NS Package Number N08E
9
www.national.com
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
NOTES: UNLESS OTHERWISE SPECIFIED
1. EPOXY COATING
2. 63Sn/37Pb EUTECTIC BUMP
3. RECOMMEND NON-SOLDER MASK DEFINED LANDING PAD.
4. PIN A1 IS ESTABLISHED BY LOWER LEFT CORNER WITH RESPECT TO TEXT ORIENTATION. REMAINING PINS ARE NUMBERED
COUNTERCLOCKWISE.
5. XXX IN DRAWING NUMBER REPRESENTS PACKAGE SIZE VARIATION WHERE X1 IS PACKAGE WIDTH, X2 IS PACKAGE LENGTH AND X3 IS
PACKAGE HEIGHT.
6. REFERENCE JEDEC REGISTRATION MO-211, VARIATION BC.
8-Bump micro SMD Package
NS Package Number BPA08EFB
X1 = 1.387 X2 = 1.412 X3 = 0.850
www.national.com
10
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
NOTES: UNLESS OTHERWISE SPECIFIED
1. EPOXY COATING
2. FOR SOLDER BUMP COMPOSITION, SEE “SOLDER INFORMATION” IN THE PACKAGING SECTION OF THE NATIONAL SEMICONDUCTOR WEB
PAGE (www.national.com).
3. RECOMMEND NON-SOLDER MASK DEFINED LANDING PAD.
4. PIN A1 IS ESTABLISHED BY LOWER LEFT CORNER WITH RESPECT TO TEXT ORIENTATION.
5. XXX IN DRAWING NUMBER REPRESENTS PACKAGE SIZE VARIATION WHERE X1 IS PACKAGE WIDTH, X2 IS PACKAGE LENGTH AND X3 IS
PACKAGE HEIGHT.
6. REFERENCE JEDEC REGISTRATION MO-211, VARIATION BC.
8-Bump micro SMD Package
NS Package Number TPA08EFA
X1 = 1.387 X2 = 1.412 X3 = 0.500
National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves
the right at any time without notice to change said circuitry and specifications.
For the most current product information visit us at www.national.com.
LIFE SUPPORT POLICY
NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS
WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR
CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body, or
(b) support or sustain life, and whose failure to perform when
properly used in accordance with instructions for use
provided in the labeling, can be reasonably expected to result
in a significant injury to the user.
2. A critical component is any component of a life support
device or system whose failure to perform can be reasonably
expected to cause the failure of the life support device or
system, or to affect its safety or effectiveness.
BANNED SUBSTANCE COMPLIANCE
National Semiconductor follows the provisions of the Product Stewardship Guide for Customers (CSP-9-111C2) and Banned Substances
and Materials of Interest Specification (CSP-9-111S2) for regulatory environmental compliance. Details may be found at:
www.national.com/quality/green.
Lead free products are RoHS compliant.
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Support Center
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Fax: +49 (0) 180-530 85 86
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www.national.com
Tel: 81-3-5639-7560
LMC555 - CMOS Timer
Datasheet
Packaging
Samples & Pricing
Reliability
Design Tools
Knowledge Base
Typical Application
Features
See Datasheet for Application Information
• Less than 1 mW typical power dissipation at 5V supply
• 3 MHz astable frequency capability
Parametric Table
expand
• 1.5V supply operating voltage guaranteed
• Output fully compatible with TTL and CMOS logic at 5V supply
• Tested to -10 mA, +50 mA output current levels
• Reduced supply current spikes during output transitions
• Extremely low reset, trigger, and threshold currents
• Excellent temperature stability
Temperature Min -40 deg C
Temperature Max 85 deg C
Additional Resources
• Pin-for-pin compatible with 555 series of timers
• Available in 8-pin MSOP Package and 8-Bump micro SMD package
Design Tools (see below)
General Description
Connection Diagram
click for larger image
The LMC555 is a CMOS version of the industry standard 555 series general purpose
timers. More...
Datasheet
Size in Kbytes
Date
RoHS Compliance Information
View Online
Download
LMC555 CMOS Timer
767 Kbytes
25-May-06
LMC555 CMOS Timer (Japanese)
513 Kbytes
160 Kbytes
Download
LMC555 Mil-Aero Datasheet MNLMC555-X
If you have trouble printing or viewing PDF file(s), see Printing Problems.
Package Availability, Models, Samples & Pricing
Factory Lead Time
Budgetary Pricing
Package
Package
Marking
Format
Samples &
Electronic
Orders
Std
Pack
Size
Part Number
Models
MSL
Peak
RoHS
CAD
Weeks
Qty
Type
Pins Spec.
Qty
$US each
Rating Reflow Report Symbols
reel
of
3000
Lifetime buy
12 weeks 15000
XVF
I 1
MICRO SMD
RoHS
RoHS
LMC555CBPX
LMC555CM
8
8
STD
STD
1
1
260
235
N/A
N/A
N/A
1K+
$0.48
NSZXTT
LMC
555CM
Full production
rail
of
95
SOIC NARROW
SOIC NARROW
MINI SOIC
N/A
N/A
N/A
N/A
1K+
1K+
1K+
1K+
$0.43
$0.43
$0.50
$0.50
6 weeks
5000
NOPB
STD
1
1
260
235
NSZXTT
LMC
555CM
Full production
reel
of
2500
RoHS
RoHS
RoHS
LMC555CMX
LMC555CMM
LMC555CMMX
8
8
8
N/A
N/A
N/A
6 weeks
5000
NOPB
STD
1
1
260
260
Full production
reel
of
1000
ZXTT
ZC5
8 weeks
5000
NOPB
STD
1
1
260
260
Full production
reel
of
3500
ZXTT
ZC5
MINI SOIC
8 weeks
7500
NOPB
1
260
STD
1
NA
NSUZXYTT
LMC
555CN
Full production
rail
of
40
MDIP
RoHS
LMC555CN
8
N/A
N/A
N/A
1K+
$0.54
$0.59
6 weeks
3000
NOPB
NOPB
1
1
NA
Full production
reel
of
250
XVF
I 02
MICRO SMD
MICRO SMD
RoHS
RoHS
LMC555CTP
8
8
260
N/A
N/A
1K+
1K+
6 weeks
N/A
reel
of
3000
Full production
XVF
I 02
LMC555CTPX
LMC555 MDA
LMC555 MD8
NOPB
1
260
N/A
N/A
N/A
$0.59
CALL
CALL
6 weeks
N/A
tray
of
N/A
Full production
Unpackaged Die
Unpackaged Die
-
-
N/A
N/A
tray
of
N/A
Full production
N/A
Obsolete
8 weeks
N/A
NSZSSXXYYA
LMC555J/883
Q 5962-
rail
of
40
5962-8950305PA
(LMC555J/883)
CERDIP
RoHS
8
N/A
N/A
50+
$11.70
500
8950305PA
Obsolete Parts
Obsolete Part
Alternate Part or Supplier
NONE
Source
Last Time Buy Date
LMC555CBP
NONE
07/24/2009
LMC555CBPX
LMC555G-R DWF
LMC555H/883
LMC555J/883
NONE
NONE
NONE
07/24/2009
04/04/95
NONE
LMC555J/883
LM555J/883
NATIONAL SEMICONDUCTOR
NONE
09/08/98
12/03/2008
General Description
The LMC555 is a CMOS version of the industry standard 555 series general purpose timers. In addition to the standard package (SOIC, MSOP, and MDIP) the LMC555 is also available in
a chip sized package (8 Bump micro SMD) using National's micro SMD package technology. The LMC555 offers the same capability of generating accurate time delays and frequencies as
the LM555 but with much lower power dissipation and supply current spikes. When operated as a one-shot, the time delay is precisely controlled by a single external resistor and capacitor.
In the stable mode the oscillation frequency and duty cycle are accurately set by two external resistors and one capacitor. The use of National Semiconductor's LMCMOS™ process
extends both the frequency range and low supply capability.
Reliability Metrics
Part Number
LMC555 MD8
Process
CMOS
EFR Reject
EFR Sample Size
16925
PPM *
LTA Rejects
LTA Device Hours
2065000
FITS
MTTF (Hours)
585949388
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
0
2
3
3
3
3
3
3
3
3
3
2
LMC555 MDA
LMC555CBPX
LMC555CM
P2CMOS
P2CMOS
P2CMOS
P2CMOS
P2CMOS
P2CMOS
P2CMOS
P2CMOS
P2CMOS
CMOS
45010
45010
45010
45010
45010
45010
45010
45010
45010
16925
3767500
3767500
3767500
3767500
3767500
3767500
3767500
3767500
3767500
2065000
484371054
484371054
484371054
484371054
484371054
484371054
484371054
484371054
484371054
585949388
LMC555CMM
LMC555CMMX
LMC555CMX
LMC555CN
LMC555CTP
LMC555CTPX
LMC555J/883
Note: The Early Failure Rates were calculated as point estimates. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy
and derating the assumed stress temperature of 150°C to an application temperature of 55°C.
For more information on Reliability Metrics, please click here.
Design Tools
Title
Size in Kbytes
Date
View Online
Download
LMC555CBP Micro SMD Qualification Package
4172 Kbytes
17-Apr-2000
If you have trouble printing or viewing PDF file(s), see Printing Problems.
Application Notes
Title
Size in Kbytes
Date
Download
AN-828: Application Note 828 Increasing the High Speed Torque of Bipolar Stepper Motors
808 Kbytes
362 Kbytes
1-Oct-02
AN-828 (Japanese): Application Note 828 Increasing the High Speed Torque of Bipolar Stepper Motors
Download
Download
AN-681: PC Mouse Implementation Using COP800
525 Kbytes
306 Kbytes
5-Aug-95
AN-460: Application Note 460 LM34/LM35 Precision Monolithic Temperature Sensors
20-Sep-02
AN-460 (Japanese): Application Note 460 LM34/LM35 Precision Monolithic Temperature Sensors
322 Kbytes
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[Information as of 22-Dec-2008]
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