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参数资料
| 型号： | 935262009112 |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 100 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO28 |
| 封装： | 5.30 MM, PLASTIC, MO-150AH, SOT-341-1, SSOP-28 |
| 文件页数： | 5/12页 |
| 文件大小： | 81K |
| 代理商： | 935262009112 |
Philips Semiconductors
Product specification
PCK2000M
CK97 (66/100MHz) Mobile System Clock Generator
2
1998 Sep 29
853-2128 20101
FEATURES
Reduced pincount version of PCK2000 for mobile applications
Mixed 2.5V and 3.3V operation
Two CPU clocks at 2.5V
Six synchronous PCI clocks at 3.3V, one free–running
One 3.3V reference clock @ 14.318 MHz
Reference 14.31818 MHz Xtal oscillator input
100 MHz or 66 MHz operation
Power management control input pins
175 ps CPU clock jitter
175 ps skew on outputs
Available in 28–pin SSOP package
1.5 – 4ns CPU–PCI delay
Power down if PWRDWN is held LOW
See PCK2000 for 48-pin version
DESCRIPTION
The PCK2000M is a clock synthesizer/driver chip for a Pentium Pro
or other similar processors, typically used in mobile applications.
The PCK2000M has two CPU clock outputs at 2.5V. There are six
PCI clock outputs running at 33 MHz. One of the PCI clock outputs
is free–running. The 3.3V reference clock outputs at 14.318 MHz.
All clock outputs meet Intel’s drive strength, rise/fall time, jitter,
accuracy, and skew requirements.
The part possesses dedicated powerdown, CPUSTOP, and
PCISTOP input pins for power management control. These inputs
are synchronized on–chip and ensure glitch–free output transitions.
When the CPUSTOP input is asserted, the CPU clock outputs are
driven LOW. When the PCISTOP inputs is asserted, the PCI clock
outputs are driven LOW.
Finally, when the PWRDWN input pin is asserted, the internal
reference oscillator and PLLs are shut down, and all outputs are
driven LOW, except the free running PCICLK_F clock output.
The PCK2000M is available in a 28–pin SSOP package.
PIN CONFIGURATION
3
4
5
6
7
8
9
10
11
12
17
18
19
20
21
22
23
24
25
26
VSSPCI0
PCICLK_F
PCICLK1
VDDPCI0
PCICLK2
PCICLK3
VDDPCI1
PCICLK4
PCICLK5
CPUSTOP
VSSPCI1
PCISTOP
VSSCORE1
VDDCORE1
VSSCPU
CPUCLK1
CPUCLK0
VDDCPU
REF
PWRDWN
13
16
VDDCORE0
SEL
14
15
VSSCORE0
SEL100/66
TOP VIEW
1
227
28
XTAL IN
XTAL OUT
VDDREF
VSSREF
SA00448
PCK2000M
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
NORTH AMERICA
DRAWING NUMBER
28-Pin Plastic SSOP
0
°C to +70°C
PCK2000M DB
SOT341-1
Intel and Pentium are registered trademarks of Intel Corporation.
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