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PCK2023 Datasheet(PDF) 2 Page - NXP Semiconductors |
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PCK2023 Datasheet(HTML) 2 Page - NXP Semiconductors |
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2 / 30 page  Philips Semiconductors Product data PCK2023 CK408 (66/100/133/200 MHz) spread spectrum differential system clock generator 2 2001 Sep 07 853-2278 27052 FEATURES • 3.3 V operation • Three differential CPU clock pairs • Ten PCI clocks at 3.3 V • Six 66 MHz clocks at 3.3 V • Two 48 MHz clocks at 3.3 V • One 14.318 MHz reference clock • 66,100, 133 or 200 MHz operation • Power management control pins • CPU clock skew less than 200 ps cycle-to-cycle • CPU clock skew less than 150 ps pin-to-pin • 1.5 ns to 3.5 ns delay on PCI pins • Spread Spectrum capability DESCRIPTION The PCK2023 is a clock synthesizer/driver for a Pentium IV and other similar processors. The PCK2023 has three differential pair CPU current source outputs. There are ten PCI clock outputs running at 33 MHz and two 48 MHz clocks. There are six 3V66 outputs. Finally, there is one 3.3 V reference clock at 14.318 MHz. All clock outputs meet Intel’s drive strength, rise/fall times, jitter, accuracy, and skew requirements. The part possesses a dedicated power-down input pin for power management control. This input is synchronized on-chip and ensures glitch-free output transitions. PIN CONFIGURATION SW00695 1 2 3 4 5 6 7 8 9 10 11 12 45 46 47 48 49 50 51 52 53 54 55 56 VDD XTAL_Out VSS PCIF0 PCIF1 PCIF2 VDD VSS PCI0 PCI1 REF_0 S0 CPU3 CPU3 CPU0 CPU0 VDD CPU1 CPU1 VSS VDD CPU2 PCI2 13 14 15 16 17 18 39 40 41 42 43 44 PCI3 VDD VSS PCI4 PCI5 CPU2 IREF Mult0 VSS Iref S2 PCI6 19 38 USB 48 MHz VDD 20 21 22 23 24 25 32 33 34 35 36 37 VSS 66Buff0/3V66_2 66Buff1/3V66_3 66Buff2/3V66_4 66In/3V66_5 DOT 48 MHz 3V66_1/VCH VDD 48 MHz PCI_Stop 3V66_0 VDD PWRDWN 26 31 VSS VDDA 27 30 SCLK VSSA 28 29 Vtt_Pwrgd SDATA XTAL_In VSS 48 MHz ORDERING INFORMATION PACKAGES TEMPERATURE RANGE ORDER CODE DRAWING NUMBER 56-Pin Plastic SSOP 0 to +70 °C PCK2023DL SOT371-1 56-Pin Plastic TSSOP 0 to +70 °C PCK2023DGG SOT364-1 Intel and Pentium are registered trademarks of Intel Corporation. |
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