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MK3233-01STR PDF预览

MK3233-01STR

更新时间: 2024-11-07 22:13:23
品牌 Logo 应用领域
矽成 - ICSI 晶体外围集成电路光电二极管时钟
页数 文件大小 规格书
4页 72K
描述
Handheld System Clock Synthesizer

MK3233-01STR 数据手册

 浏览型号MK3233-01STR的Datasheet PDF文件第2页浏览型号MK3233-01STR的Datasheet PDF文件第3页浏览型号MK3233-01STR的Datasheet PDF文件第4页 
MK3233  
Handheld System Clock Synthesizer  
ICR O CLOC K  
Description  
Features  
• Input crystal frequency of 32.768 kHz  
• Lowest power solution available  
The MK3233 is the smallest size, lowest power system  
clock synthesizer available. It is the ideal way to  
generate clocks for smart cell phones, 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 32.768 kHz, CPU, and serial communications  
output clocks.  
• Operating temperature of -20 to 70 °C  
• Output clock frequencies up to 50 MHz  
• Three output clocks  
• 3.3 V or 5.0 V operation  
The device has multiple power down modes for the  
CPU, communications, and 32.768 kHz clocks.  
• Duty cycle of 45/55  
• Eight selectable CPU frequencies  
• CPU or Communication clock power down  
• Separate battery supply pin for 32 kHz runs to 2V  
• IDD less than 4µA when 32 kHz running  
• Serial port clocks of 1.8432 MHz (-01 version) or  
3.6864 MHz (-02 version)  
The MK3233 can save board space and cost even if it  
only replaces the 32 kHz oscillator circuitry and one  
additional surface mount crystal or oscillator. The  
extremely low IDD, the ease of surface mounting, the  
upgradeability of CPU frequencies, and the power  
down capability are added benefits in using the part.  
• Packaged in 16 pin narrow SOIC  
Block Diagram  
VDD GND  
CPUS0  
CPUS1  
CPUS2  
CPU  
Output  
Buffer  
Clock Synthesis  
and Control  
Circuitry  
CPUCLK  
PDCPU  
PDCOMM  
PD  
Communications  
Clock Synthesis  
and Control  
Output  
Buffer  
1.843 or  
3.686 MHz  
VDD32  
Circuitry  
32.768 kHz  
crystal  
or  
X1  
Crystal  
Oscillator  
clock  
Output  
Buffer  
32.768 kHz  
X2  
MDS 3233 F  
1
Revision 11070  
Printed 11/16/00  
Integrated Circuit Systems, Inc.• 525 Race Street• San Jose • CA • 95126• (408) 295-9800 tel • www.icst.com  

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