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MK3230-01STR 데이터시트 PDF




Integrated Circuit Systems에서 제조한 전자 부품 MK3230-01STR은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 MK3230-01STR 기능
기능 Portable System Clock Synthesizer
제조업체 Integrated Circuit Systems
로고 Integrated Circuit Systems 로고


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MK3230-01STR 데이터시트, 핀배열, 회로
I CR O C LOC K
Description
The MK3230 is the smallest size, lowest power system
clock synthesizer available. It is the ideal way to
generate clocks for portable computers, PDAs, and
other devices where low power is required. Using
analog Phase-Locked Loop (PLL) techniques, the
device operates from a single 32.768 kHz crystal to
produce the 32.768kHz, CPU, system, keyboard
controller, and floppy (or super I/O) controller output
clocks.
The device has two power down modes. From the CPU
decoding table (when FS0, FS1, and FS2 all are low),
the CPU and 14.3 MHz system clocks can be turned
off. Also, the keyboard and 24 MHz peripheral clocks
can be shut off from PD24+KBD (pin 10). The part has
a separate VDD32 pin for the 32 kHz clock, allowing
it to run at a different voltage (down to 2.0V) from the
rest of the chip, allowing it to run from a back-up
battery.
Block Diagram
VDD GND
MK3230
Portable System Clock Synthesizer
Features
• Packaged in 16 pin narrow (0.150”) SOIC
• Input crystal frequency of 32.768 kHz
• Lowest power solution available
• Lowest profile clock solution where height is critical
• Output clock frequencies up to 80 MHz
• Five output clocks
• 3.3V or 5.0V operation
• Duty cycle of 45/55
• Seven selectable CPU frequencies
• CPU and peripheral clock power downs
• Separate battery supply pin for 32 kHz
• IDD less than 5µA when 32 kHz running
• Available with either 12MHz (-01) or 16MHz (-02)
keyboard clock output
• 14.3MHz output is not suitable for driving PLL for
CRT. Will drive all other functions
• 32kHz crystals require long startup (>500ms)
CPUS0
CPUS1
CPUS2
PD24+KBD
VDD32
X1
X2
32.768 kHz
crystal
Crystal
Oscillator
Clock Synthesis
and Control
Circuitry
Output
Buffer
Output
Buffer
Output
Buffer
Output
Buffer
Output
Buffer
CPUCLK
12 or 16 MHz
24.00 MHz
14.32 MHz
32.768 kHz
MDS 3230 F
1
Revision 022798
Printed 11/16/00
Integrated Circuit Systems, Inc.•525 Race Street•San Jose•CA•95126•(408)295-9800tel•www.icst.com




MK3230-01STR pdf, 반도체, 판매, 대치품
I CR O C LOC K
MK3230
Portable System Clock Synthesizer
Input and Output Voltages
The MK3230 can operate with VDD = 3.0V to 5.5V, and VDD32 = 2.0V to 5.5V in any combination.
Both VDD pins (pin #5 and pin #13) must be connected to the same voltage.
The amplitude of the 32.768 kHz output clock will be equal to VDD32, and the amplitude of the MHz
clocks will be equal to VDD.
If using a clock input, the input voltage applied to X1 may not exceed VDD32, and the amplitude of any
other input may not exceed VDD. Consult MicroClock if your application is an exception to this.
Package Outline and Package Dimensions
EH
h x 45°
D
16 pin SOIC narrow
Symbol
A
b
c
D
E
H
e
h
Q
Inches
Min Max
0.055 0.070
0.013 0.019
0.007 0.010
0.385 0.400
0.150 0.160
0.225 0.245
.050 BSC
0.016
0.004 0.01
Millimeters
Min Max
1.397 1.778
0.330 0.483
0.191 0.254
9.779 10.160
3.810 4.064
5.715 6.223
1.27 BSC
0.406
0.102 0.254
Q
e
c
b
A
Ordering Information
Part/Order Number
MK3230-01S
MK3230-02S
MK3230-01STR
MK3230-02STR
Marking
MK3230-01S
MK3230-02S
MK3230-01S
MK3230-02S
Keyboard frequency
12 MHz
16 MHz
12 MHz
16 MHz
Package
16 pin SOIC
16 pin SOIC
Add Tape & Reel
Add Tape & Reel
Temperature
0-70°C
0-70°C
0-70°C
0-70°C
While the information presented herein has been checked for both accuracy and reliability, MicroClock Incorporated 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 MicroClock. MicroClock reserves the right to change any circuitry or specifications without notice. MicroClock does not
authorize or warrant any MicroClock product for use in life support devices or critical medical instruments.
MDS 3230 F
4
Revision 022798
Printed 11/16/00
Integrated Circuit Systems, Inc.•525 Race Street•San Jose•CA•95126•(408)295-9800tel•www.icst.com

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부품번호상세설명 및 기능제조사
MK3230-01STR

Portable System Clock Synthesizer

Integrated Circuit Systems
Integrated Circuit Systems

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