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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ICS950818 датащи(PDF) 1 Page - Integrated Circuit Systems |
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ICS950818 датащи(HTML) 1 Page - Integrated Circuit Systems |
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1 / 20 page  Integrated Circuit Systems, Inc. ICS950818 0825F—11/19/03 Block Diagram Recommended Application: CK-408 clock for Brookdale/Odem/Montara-GM for P4/Banias processor. Output Features: • 2 - Differential CPU Clock Pairs @ 3.3V • 8 - PCI (3.3V) @ 33.3MHz including 2 1x/2x selectable PCI clocks • 3 - PCI_F/PCI selectable (3.3V) @ 33.3MHz • 1 - USB (3.3V) @ 48MHz, 1 DOT (3.3V) @ 48MHz • 1 - REF (3.3V) @ 14.318MHz • 4 - 3V66 (3.3V) @ 66.6MHz • 1 - VCH/3V66 (3.3V) @ 48MHz or 66.6MHz Features: • Selectable 1X or 2X strength for REF and PCI via SMBus interface • Programmable group to group skew • Linear programmable frequency and spreading % • Efficient power management scheme through PD#, CPU_STOP# and PCI_STOP#. • Uses external 14.318MHz crystal • Stop clocks and functional control available through SMBus interface. Key Specifications: • CPU Output Jitter <150ps • 3V66 Output Jitter <250ps • CPU Output Skew <100ps Pin Configuration Frequency Generator with 200MHz Differential CPU Clocks X1 1 48 VDDREF X2 2 47 REF GND 3 46 FS1 PCICLK_F0/PCICLK6 4 45 CPU_STOP# PCICLK_F1/PCICLK7 5 44 VDDCPU PCICLK_F2/PCICLK8 6 43 CPUCLKT0 GND 7 42 CPUCLKC0 PCICLK0 8 41 GND PCICLK1 9 40 VDDCPU *PCICLK2 10 39 CPUCLKT1 VDDPCI 11 38 CPUCLKC1 *PCICLK3 12 37 IREF PCICLK413 36FS0 PCICLK514 3548MHz_USB VDD3V6615 3448MHz_DOT GND 16 33 VDD48 3V66_2 17 32 GND 3V66_3 18 31 3V66_1/VCH_CLK 3V66_4 19 30 PCI_STOP# PCICLK920 29PCICLK10 PD#21 28VDD3V66 VDDA 22 27 GND GND 23 26 SCLK Vtt_PWRGD# 24 25 SDATA 48-Pin 6.10 mm. Body, 0.50 mm. pitch TSSOP *These outputs have selectable 1X/2X strength via SMBus Frequency Select Table 1 FS 1 FS 0 0 0 100.00 66.66 33.33 14.318 48.008 0 1 166.67 66.66 33.33 14.318 48.008 1 0 133.33 66.66 33.33 14.318 48.008 1 1 200.00 66.66 33.33 14.318 48.008 3V66(4:1) MHz CPU MHz Freq Sel USB/DOT MHz REF MHz PCI MHz PLL2 PLL1 Spread Spectrum 3V66 (4:2) 48MHz_USB 48MHz_DOT X1 X2 XTAL OSC 3V66 DIVDER PD# Vtt_PWRGD# CPU_STOP# PCI_STOP# SDATA SCLK FS (1:0) I REF Control Logic Config. Reg. REF CPU DIVDER 3 3 CPUCLKT (1:0) CPUCLKC (1:0) Stop 3V66_1/VCH_CLK PCICLK (10:0) PCI DIVDER 3 7 PCICLK_F (2:0) Stop |
Аналогичный номер детали - ICS950818 |
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Аналогичное описание - ICS950818 |
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