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PCK2000M Datasheet(PDF) 2 Page - NXP Semiconductors |
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PCK2000M Datasheet(HTML) 2 Page - NXP Semiconductors |
2 / 12 page 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 ORDERING INFORMATION PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DRAWING NUMBER 28-Pin Plastic SSOP 0 °C to +70°C PCK2000M DB PCK2000M DB SOT341-1 Intel and Pentium are registered trademarks of Intel Corporation. |
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