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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PCK2010RA датащи(PDF) 2 Page - NXP Semiconductors |
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PCK2010RA датащи(HTML) 2 Page - NXP Semiconductors |
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2 / 16 page  Philips Semiconductors Product specification PCK2010RA CK98R (100/133MHz) RCC spread spectrum system clock generator 2 2001 Apr 02 853–2232 25964 FEATURES • Mixed 2.5 V and 3.3 V operation • Four CPU clocks at 2.5 V • Eight PCI clocks at 3.3 V, one free-running (synchronous with CPU clocks) • Four 3.3 V fixed clocks @ 66 MHz • Two 2.5 V CPUDIV2 clocks @ 1/ 2 CPU clock frequency • Three 2.5 V IOAPIC clocks @ 16.67 MHz • One 3.3 V 48 MHz USB clock • Two 3.3 V reference clocks @ 14.318 MHz • Reference 14.31818 MHz Xtal oscillator input • 133 MHz or 100 MHz operation, 133.01 MHz in 133 mode • Power management control input pins • CPU clock jitter ≤ 250 ps cycle-cycle • CPU clock skew ≤ 175 ps pin-pin • 0.0 ns – 1.5 ns CPU–3V66 delay • 1.5 ns – 3.5 ns 3V66–PCI delay • 1.5 ns – 4.0 ns CPU–IOAPIC delay • 1.5 ns – 4.0 ns CPU–PCI delay • Available in 56-pin SSOP package • ±0.6% center spread spectrum capability via select pins • –0.6% down spread spectrum capability via select pins DESCRIPTION The PCK2010RA is a clock generator (frequency synthesizer) chip for a Pentium II and other similar processors. The PCK2010RA has four CPU clock outputs at 2.5 V, two CPUDIV2 clock outputs running at 1/2 CPU clock frequency (66 MHz or 50 MHz depending on the state of SEL133/100) and four 3V66 clocks running at 66MHz. There are eight PCI clock outputs running at 33 MHz. One of the PCI clock outputs is free-running. Additionally, the part has three 2.5 V IOAPIC clock outputs at 16.67 MHz and two 3.3 V 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 power-down, 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 and 3V66 clock outputs are driven LOW. When the PCISTOP input 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. PIN CONFIGURATION SW00892 1 2 3 4 5 6 7 8 9 10 11 12 45 46 47 48 49 50 51 52 53 54 55 56 VSS REF1 VDD3V XTAL_IN XTAL_OUT VSS PCICLK_F PCICLK1 VDD3V PCICLK2 CPUCLK0 VSS CPUCLK1 VDD3V CPUCLK2 PCICLK3 13 14 15 16 17 18 39 40 41 42 43 44 VSS PCICLK4 PCICLK5 VDD3V PCICLK6 CPUCLK3 PCICLK7 19 38 VSS 20 21 22 23 24 25 32 33 34 35 36 37 VDD3V 3V66_0 3V66_1 SEL1 SEL0 VSS 26 31 27 30 48MHz_USB 28 29 SEl133/100 REF0 VSS 3V66_2 3V66_3 VDD3V VDD25V APIC2 APIC1 APIC0 VDD25V CPUDIV2_1 CPUDIV2_0 VSS VDD25V VSS VDD25V VSS VSS PCISTOP CPUSTOP PWRDWN SPREAD VDD3V VSS ORDERING INFORMATION PACKAGES TEMPERATURE RANGE ORDER CODE DRAWING NUMBER 56-Pin plastic SSOP 0 to +70 °C PCK2010RADL SOT371-1 Intel and Pentium are registered trademarks of Intel Corporation. |
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