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參數(shù)資料
| 型號： | MK3234-01SLF |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 時鐘產(chǎn)生/分配 |
| 英文描述： | 50 MHz, OTHER CLOCK GENERATOR, PDSO16 |
| 封裝： | 0.150 INCH, SOIC-16 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大?。?/td> | 67K |
| 代理商： | MK3234-01SLF |
MK3234
Portable System Clock Synthesizer
MDS 3234 C
1
Revision 022798
Printed 11/16/00
MicroClock Division of ICS1271 Parkmoor Ave.San JoseCA95126(408)295-9800tel(408)295-9818fax
I C R O
C LOC K
Input crystal frequency of 32.768 kHz
Lowest power solution available
Lowest profile clock solution where height is critical
Output clock frequencies up to 50 MHz
Three output clocks
3.3V or 5.0V operation
Duty cycle of 45/55
Eight selectable CPU frequencies
CPU clock power down
Separate battery supply pin for 32 kHz runs to 2V
IDD less than 4A when 32 kHz running
Packaged in 16 pin narrow (0.150”) SOIC
The MK3234 is the smallest size, lowest power system
clock synthesizer available. It is the ideal way to
generate clocks for portable computers 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, and ISA bus (system) output
clocks.
The device has an individual power down pin for the
CPU clock, and a power down pin for the entire device.
The MK3234 can save board space and cost even if it
only replaces the 32kHz 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.
Description
Features
Crystal
Oscillator
VDD
GND
CPU
Clock Synthesis
and Control
Circuitry
CPUCLK
32.768 kHz
14.318 MHz
Output
Buffer
Output
Buffer
Output
Buffer
CPUS0
CPUS1
CPUS2
32.768 kHz
crystal
Block Diagram
VDD32
PDCPU
PD
X1
X2
System
Clock Synthesis
and Control
Circuitry
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| MK3234-01STR | 制造商:ICS 制造商全稱:ICS 功能描述:Portable System Clock Synthesizer |
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