MK32000SITR [ICSI]
32.768 kHz Clock Oscillator; 32.768 kHz的时钟振荡器
| 型号： | MK32000SITR |
| 厂家： | 
INTEGRATED CIRCUIT SOLUTION INC |
| 描述： | 32.768 kHz Clock Oscillator |
| 文件： | 总4页 (文件大小：36K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MK3200
32.768 kHz Clock Oscillator
Features
Description
The MK3200 is ICS’ lowest cost, low power clock
oscillator that generates a low power 32.768 kHz
output from an inexpensive 32.768 kHz watch crystal.
This part includes a power down pin and allows you to
tri state the output clock for in-circuit testing.
• Packaged in 8 pin SOIC
• Operates from 2.5 V to 5 V
• Consumes only 3.5 µA in normal operation
• Accepts an inexpensive 32.768 kHz crystal input
• Offers power down mode
ICS manufactures the largest variety of clock
synthesizers for all applications. If more clock outputs
are needed, including MHz frequencies, see the
MK32xx family of parts. Consult ICS to eliminate
VCXOs, crystals and oscillators from your board.
• Includes an Output Enable pin to tri state
the output for in-circuit testing
• Advanced, low power, sub-micron CMOS process
• For other 32.768 kHz-based clocks with MHz
outputs, please consult ICS
• Industrial temperature version available
Block Diagram
VDD
GND
Power Down
X1
Crystal
Oscillator
Output
Buffer
32.768 kHz
crystal
32.768 kHz Clock
X2
Output Enable
MDS 3200 C
1
Revision 101001
Integrated Circuit Systems, Inc. • 525 Race Street • San Jose •CA • 95126• (408)295-9800tel • www.icst.com
MK3200
32.768 kHz Clock Oscillator
Pin Assignment
Power Down Select Table
PD
0
32.768K
On
Oscillator
On
Off
MK3200
1
Low
1
2
3
4
8
7
6
5
X2
X1
Output Enable Select Table
VDD
GND
PD
OE
0
32.768K
Tri state (Hi-Z)
On
Oscillator
On
On
GND
1
32.768K
OE
0 = connect directly to GND
1 = connect directly to VDD
8 pin (150 mil) SOIC
Pin Descriptions
Number Name
Description
1
2
3
4
5
6
7
8
X1
Crystal connection. Connect to a 32.768 kHz crystal.
VDD. Connect to + 3.3 V.
VDD
GND
Connect to ground.
32.768K 32.768 kHz clock output.
OE
PD
Output Enable.
Power Down. Turns off entire chip when high.
Connect to ground.
GND
X2
Crystal connection. Connect to a 32.768 kHz crystal.
MDS 3200 C
2
Revision 101001
Integrated Circuit Systems, Inc. • 525 Race Street • San Jose •CA • 95126• (408)295-9800tel • www.icst.com
MK3200
32.768 kHz Clock Oscillator
Electrical Specifications
Parameter
Conditions
Minimum Typical Maximum Units
ABSOLUTE MAXIMUM RATINGS (note 1)
Supply voltage, VDD
Referenced to GND
Referenced to GND
7
VDD+0.5
85
V
Inputs and Clock Outputs
Ambient Operating Temperature
Storage temperature
-0.5
-40
-65
V
°C
°C
150
DC CHARACTERISTICS (VDD = 3.3 V unless noted)
Operating Voltage, VDD
2.375
2.4
5.250
0.4
V
V
Output High Voltage, VOH
IOH=-3mA
IOL=3mA
Output Low Voltage, VOL
V
Output High Voltage, VOH, CMOS level
IOH=-1.5mA
VDD-0.4
V
Operating Supply Current, IDD, PD=0, OE=1No Load
Short Circuit Current
3.5
±6
µA
mA
AC CHARACTERISTICS (VDD = 3.3 V unless noted)
Input Crystal Frequency
32.768
kHz
ppm
ns
Input Crystal Accuracy
±30
8
Output Clock Rise Time
Output Clock Fall Time
Output Clock Duty Cycle
0.8 to 2.0V
2.0 to 0.8V
At VDD/2
8
ns
40
50
60
%
Notes: 1. Stresses beyond those listed under Absolute Maximum Ratings could cause permanent damage to the
device. Prolonged exposure to levels above the operating limits but below the Absolute Maximums may affect
device reliability.
External Components
The MK3200 requires a minimum number of external components for proper operation. A decoupling capacitor of
0.01µF should be connected between VDD and GND on pins 2 and 3, as close to the MK3200 as possible. A series
termination resistor of 33 Ω may be used for the clock output if the trace is longer than a few inches. The input crystal
must be connected as close to the chip as possible. The input crystal should be a parallel mode watch crystal with 12
pF load capacitance.
MDS 3200 C
3
Revision 101001
Integrated Circuit Systems, Inc. • 525 Race Street • San Jose •CA • 95126• (408)295-9800tel • www.icst.com
MK3200
32.768 kHz Clock Oscillator
Package Outline and Package Dimensions
(For current dimensional specifications, see JEDEC Publication No. 95.)
8 pin SOIC
Inches
Min Max
Millimeters
Min Max
Symbol
A
A1
B
0.0532 0.0688 1.35
0.0040 0.0098 0.10
0.0130 0.0200 0.33
0.0075 0.0098 0.19
0.1890 0.1968 4.80
0.1497 0.1574 3.80
1.75
0.24
0.51
0.24
5.00
4.00
E
H
C
D
E
INDEX
AREA
e
.050 BSC
1.27 BSC
1
2
H
h
0.2284 0.2440 5.80
0.0099 0.0195 0.25
0.0160 0.0500 0.41
6.20
0.50
1.27
h x 45°
L
D
A
L
A1
C
B
e
Ordering Information
Part/Order Number
MK3200S
Marking
Shipping packaging
Package
Temperature
0-70 °C
MK3200S
MK3200S
MK3200SI
MK3200SI
tubes
8 pin SOIC
8 pin SOIC
8 pin SOIC
8 pin SOIC
MK3200STR
MK3200SI
tape and reel
tubes
0-70 °C
-40-85 °C
-40-85 °C
MK32000SITR
tape and reel
While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems
Incorporated (ICS) assumes no responsibility for either its use or for the infringement of any patents or other rights of third
parties, which would result from its use. No other circuits, patents, or licenses are implied. This product is intended for use in
normal commercial applications. Any other applications such as those requiring extended temperature range, high reliability, or
other extraordinary environmental requirements are not recommended without additional processing by ICS. ICS reserves the
right to change any circuitry or specifications without notice. ICS does not authorize or warrant any ICS product for use in life
support devices or critical medical instruments.
MDS 3200 C
4
Revision 101001
Integrated Circuit Systems, Inc. • 525 Race Street • San Jose •CA • 95126• (408)295-9800tel • www.icst.com
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