PCK2000M Просмотр технического описания (PDF) - Philips Electronics
Номер в каталоге
Компоненты Описание
Список матч
PCK2000M Datasheet PDF : 12 Pages
| |||
Philips Semiconductors
CK97 (66/100MHz) Mobile System Clock Generator
Product specification
PCK2000M
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
PIN CONFIGURATION
XTAL IN 1
XTAL OUT 2
VSSPCI0 3
PCICLK_F 4
PCICLK1 5
VDDPCI0 6
PCICLK2 7
PCICLK3 8
VDDPCI1 9
PCICLK4 10
PCICLK5 11
VSSPCI1 12
VDDCORE0 13
VSSCORE0 14
TOP VIEW
28 VSSREF
27 VDDREF
26 REF
25 VDDCPU
24 CPUCLK0
23 CPUCLK1
22 VSSCPU
21 VDDCORE1
20 VSSCORE1
19 PCISTOP
18 CPUSTOP
17 PWRDWN
16 SEL
15 SEL100/66
SA00448
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.
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE OUTSIDE NORTH AMERICA
28-Pin Plastic SSOP
0°C to +70°C
PCK2000M DB
Intel and Pentium are registered trademarks of Intel Corporation.
NORTH AMERICA
PCK2000M DB
DRAWING NUMBER
SOT341-1
1998 Sep 29
2
853-2128 20101
Share Link: 